Vaisala HUMICAP MM70 Operation & User’s Manual

Operation & User’s Manual for Vaisala HUMICAP MM70 Multimeter (71 pages)

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175/175791-humicap_mm70.pdf file (10 Jun 2024)
  • Manufacturer: Vaisala
  • Category of Device: Multimeter
  • Document: HUMICAP MM70, File Type: PDF Operation & User’s Manual
  • Updated: 10-06-2024
  • Count of Pages: 71
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Vaisala HUMICAP MM70 Multimeter PDF Operation & User’s Manual (Updated: Monday 10th of June 2024 04:10:33 PM)

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  • Page 1:

    USER'S GUIDE

    Vaisala HUMICAP® Hand-Held

    Moisture and Temperature in Oil Mete

    r

    MM70

    M210498EN-C

  • Page 2:

    PUBLISHED BY

    Vaisala Oyj Phone (int.): +358 9 8949 1

    P.O. Box 26 Fax: +358 9 8949 2227

    FIN-00421 Helsinki

    Finland

    Visit our Internet pages at http://www.vaisala.com/

    © Vaisala 2007

    No part of this manual may be reproduced in any form or by any means, electronic or

    mechanical (including photocopying), nor may its contents be communicated to a third

    party without prior written permission of the copyright holder.

    The contents are subject to change without prior notice.

    Please observe that this manual does not create any legally binding obligations for

    Vaisala towards the customer or end user. All legally binding commitments and

    agreements are included exclusively in the applicable supply contract or Conditions of

    Sale.

  • Page 3:

    ________________________________________________________________________________

    Table of Contents

    CHAPTER 1

    GENERAL INFORMATION............................................................................ 5

    About This Manual ................................................................... 5

    Product Related Safety Precautions ...................................... 5

    ESD Protection ......................................................................... 5

    Recycling .................................................................................. 6

    Trademarks ............................................................................... 6

    License Agreement .................................................................. 6

    Warranty.................................................................................... 7

    CHAPTER 2

    PRODUCT OVERVIEW AND MECHANICS.................................................. 9

    Vaisala´s Hand-held MM70 Device ......................................... 9

    Structure of the MI70 Indicator............................................ 10

    Structure of the MMP78 Probe............................................ 11

    Tools.................................................................................... 11

    Display Parameters................................................................ 12

    Options.................................................................................... 12

    CHAPTER 3

    INSTALLATION AND MOUNTING OPTIONS............................................. 13

    Installing and Recharging the Batteries .............................. 13

    Turning On the Device........................................................... 13

    Installing the Probe ................................................................ 14

    Mounting the Probe for Pressurized Pipelines/Oils ........... 14

    Tightening the Clasp Nut..................................................... 15

    Ball Valve Installation ............................................................ 17

    Mounting the Probe for Direct Measurement

    (No Pressure).......................................................................... 19

    CHAPTER 4

    MENU OPERATIONS AND SETTINGS....................................................... 21

    Function Keys and Menu Structure...................................... 21

    Navigating in Menu ............................................................. 21

    Basic Display....................................................................... 22

    Graphical Display ................................................................ 23

    Main Menu........................................................................... 23

    Settings ................................................................................... 24

    Display Settings .................................................................. 24

    Quantities and Units............................................................ 24

    VAISALA ________________________________________________________________________ 1

  • Page 4:

    USER'S GUIDE____________________________________________________________________

    Rounding .............................................................................24

    Hold/Save Display ...............................................................25

    Graphic History....................................................................25

    User Interface Settings........................................................26

    Selecting Language.............................................................27

    Automatic Power Off............................................................27

    Changing the Shorcut Keys.................................................28

    Turning Key Click and Backlight On/Off..............................28

    Setting Date and Time.........................................................28

    Device Information...............................................................29

    Restoring Factory Settings ..................................................30

    PPM-calculation...................................................................30

    Calculation Model with Oil Specific Coefficients .................31

    Feeding the Coefficients to the MI70 Memory ....................31

    Other Functions......................................................................32

    Setting the Alarm Levels .....................................................32

    Selecting and Scaling the Analog Output............................34

    Taking Measurements............................................................35

    Measuring Other Parameters Simultaneously.....................35

    Recording Data .......................................................................36

    Recording ............................................................................36

    Stopping Recording.............................................................37

    Viewing Recorded Data.......................................................38

    Checking the Memory Status ..............................................38

    Deleting All Recorded Files .................................................38

    Transferring Recorded Data to PC......................................39

    CHAPTER 5

    CALIBRATION AND ADJUSTMENT...........................................................41

    General Notes about Calibration and Adjustment of

    Transmitters............................................................................41

    Using MM70 in Checking and Adjusting .............................41

    Using Calibration Cables.....................................................41

    Calibration and Adjustment of HMP228

    Series Transmitters .............................................................42

    Relative Humidity Adjustment by Using a Calibrated

    Reference Probe .................................................................43

    1-point Relative Humidity Adjustment by

    Using a Calibrator................................................................43

    2-point Relative Humidity Adjustment by

    Using a Calibrator................................................................44

    Calibration and Adjustment of MMT318 Transmitters.........45

    Field Checking and Adjustment by Using a Calibrated

    Reference Probe .................................................................45

    1-point Adjustment by Using a Calibrator............................46

    2-point Adjustment by Using a Calibrator............................47

    Calibration and Adjustment of MMT330 Transmitters.........48

    Field Checking and Adjustment by Using a Calibrated

    Reference Probe .................................................................48

    1-point Adjustment by Using a Calibrator............................49

    2-point Adjustment by Using a Calibrator............................50

    Calibration and Adjustment of MM70 Series Probes..........51

    General about Calibrations..................................................51

    2 ___________________________________________________________________ M210498EN-C

  • Page 5:

    ________________________________________________________________________________

    Preparations before the Calibration .................................... 51

    Relative Humidity Adjustment ............................................. 51

    Li-Cl-NaCl Automatic Adjustment ....................................... 51

    2-point Adjustment .............................................................. 52

    1-point Adjustment .............................................................. 53

    Temperature Adjustment..................................................... 53

    1-point Adjustment .............................................................. 54

    2-point Adjustment .............................................................. 54

    Last Adjustment Date.......................................................... 55

    Determination of Oil-specific Coefficients........................... 55

    Error Messages ...................................................................... 57

    Error Message Types.......................................................... 57

    CHAPTER 6

    MAINTENANCE ........................................................................................... 59

    Changing the Filter and Sensor............................................ 59

    Cleaning the Sensor............................................................... 59

    Changing the Battery............................................................. 60

    Vaisala Service Centers......................................................... 61

    CHAPTER 7

    TECHNICAL SPECIFICATIONS.................................................................. 63

    Measured Variables................................................................ 63

    Water Activity a

    w

    .................................................................. 63

    Temperature........................................................................ 63

    MMP78 Probe ..................................................................... 64

    MI70 Indicator ..................................................................... 64

    Battery Pack........................................................................ 65

    General Facts about the MM70 Hand-held Humidity and

    Temperature Meter ............................................................. 65

    Electromagnetic Compatibility............................................. 65

    Options and Accessories Available ..................................... 66

    Dimensions in mm (inches) .................................................. 67

    List of Figures

    Figure 1 MI Indicator.............................................................................. 10

    Figure 2 MMP78 Probe .......................................................................... 11

    Figure 3 Protecting Cap and Plastic Wrench ......................................... 11

    Figure 4 MMP78 Pipe Dimensions (in mm); 400 mm (adjustment range

    340 mm) ................................................................................... 15

    Figure 5 Tightening Clasp Nut................................................................ 16

    Figure 6 Sealing Thread Cutting for the Fitting Body ............................. 17

    Figure 7 Ball Valve Installation ............................................................... 18

    Figure 8 Direct Mounting ........................................................................ 19

    Figure 9 Keypad ..................................................................................... 21

    Figure 10 Basic Display............................................................................ 22

    Figure 11 Display Setting Menus.............................................................. 24

    Figure 12 User Interface Setting Menus................................................... 26

    Figure 13 Device Information Setting Menus ........................................... 29

    Figure 14 Device Information Submenus ................................................. 30

    VAISALA ________________________________________________________________________ 3

  • Page 6:

    USER'S GUIDE____________________________________________________________________

    Figure 15

    Measurement Setting Menus....................................................32

    Figure 16 Alarm Function Menus..............................................................32

    Figure 17 Analog Output Menus...............................................................34

    Figure 18 Record and View Menu ............................................................36

    Figure 19 Adjustment Mode......................................................................43

    Figure 20 Installing the Battery Pack ........................................................60

    Figure 21 MI70 Indicator...........................................................................67

    Figure 22 MMP78 Probe...........................................................................68

    List of Tables

    Table 1 Measurement Intervals and Max. Recording Times.................37

    Table 2 Example: Measured Water Content 213 ppm ..........................56

    Table 3 List of Options and Accessories ...............................................66

    4 ___________________________________________________________________ M210498EN-C

  • Page 7:

    Chapter 1 __________________________________________________ GENERAL INFORMATION

    CHAPTER 1

    GENERAL INFORMATION

    About This Manual

    This manual provides information for installing, operating, and

    maintaining the product.

    Product Related Safety Precautions

    The MM70 delivered to you has been tested for safety and approved

    as shipped from the factory. Note the following precautions:

    WARNING

    Ground the product, and verify outdoor installation grounding

    periodically to minimize shock hazard.

    CAUTION

    Do not modify the unit. Improper modification can damage the

    product or lead to malfunction.

    ESD Protection

    Electrostatic Discharge (ESD) can cause immediate or latent damage

    to electronic circuits. Vaisala products are adequately protected

    against ESD for their intended use. However, it is possible to damage

    the product by delivering electrostatic discharges when touching,

    removing, or inserting any objects inside the equipment housing.

    VAISALA ________________________________________________________________________ 5

  • Page 8:

    USER'S GUIDE____________________________________________________________________

    To make sure you are not delivering high static voltages yourself:

    - Handle ESD sensitive components on a properly grounded and

    protected ESD workbench. When this is not possible, ground

    yourself with a wrist strap and a resistive connection cord to the

    equipment chassis before touching the boards. When neither of the

    above is possible, at least touch a conductive part of the equipment

    chassis with your other hand before touching the boards.

    - Always hold the boards by the edges and avoid touching the

    component contacts.

    Recycling

    Trademarks

    Microsoft®, Windows®, Windows NT®, and Windows® 2000 are

    registered trademarks of Microsoft Corporation in the United States

    and/or other countries.

    License Agreement

    All rights to any software are held by Vaisala or third parties. The

    customer is allowed to use the software only to the extent that is

    provided by the applicable supply contract or Software License

    Agreement.

    6 ___________________________________________________________________ M210498EN-C

  • Page 9:

    Chapter 1 __________________________________________________ GENERAL INFORMATION

    Warranty

    Vaisala hereby represents and warrants all Products

    manufactured by Vaisala and sold hereunder to be

    free from defects in workmanship or material

    during a period of twelve (12) months from the date

    of delivery save for products for which a special

    warranty is given. If any Product proves however to

    be defective in workmanship or material within the

    period herein provided Vaisala undertakes to the

    exclusion of any other remedy to repair or at its

    own option replace the defective Product or part

    thereof free of charge and otherwise on the same

    conditions as for the original Product or part

    without extension to original warranty time.

    Defective parts replaced in accordance with this

    clause shall be placed at the disposal of Vaisala.

    Vaisala also warrants the quality of all repair and

    service works performed by its employees to

    products sold by it. In case the repair or service

    works should appear inadequate or faulty and

    should this cause malfunction or nonfunction of the

    product to which the service was performed Vaisala

    shall at its free option either repair or have repaired

    or replace the product in question. The working

    hours used by employees of Vaisala for such repair

    or replacement shall be free of charge to the client.

    This service warranty shall be valid for a period of

    six (6) months from the date the service measures

    were completed.

    This warranty is however subject to following

    conditions:

    a) A substantiated written claim as to any alleged

    defects shall have been received by Vaisala

    within thirty (30) days after the defect or fault

    became known or occurred, and

    b) The allegedly defective Product or part shall,

    should Vaisala so require, be sent to the works

    of Vaisala or to such other place as Vaisala may

    indicate in writing, freight and insurance

    prepaid and properly packed and labelled,

    unless Vaisala agrees to inspect and repair the

    Product or replace it on site.

    This warranty does not however apply when the

    defect has been caused through

    a) normal wear and tear or accident;

    b) misuse or other unsuitable or unauthorized use

    of the Product or negligence or error in storing,

    maintaining or in handling the Product or any

    equipment thereof;

    c) wrong installation or assembly or failure to

    service the Product or otherwise follow

    Vaisala's service instructions including any

    repairs or installation or assembly or service

    made by unauthorized personnel not approved

    by Vaisala or replacements with parts not

    manufactured or supplied by Vaisala;

    d) modifications or changes of the Product as well

    as any adding to it without Vaisala's prior

    authorization;

    e) other factors depending on the Customer or a

    third party.

    Notwithstanding the aforesaid Vaisala's liability

    under this clause shall not apply to any defects

    arising out of materials, designs or instructions

    provided by the Customer.

    This warranty is expressly in lieu of and excludes

    all other conditions, warranties and liabilities,

    express or implied, whether under law, statute or

    otherwise, including without limitation any implied

    warranties of merchantability or fitness for a

    particular purpose and all other obligations and

    liabilities of Vaisala or its representatives with

    respect to any defect or deficiency applicable to or

    resulting directly or indirectly from the Products

    supplied hereunder, which obligations and

    liabilities are hereby expressly cancelled and

    waived. Vaisala's liability shall under no

    circumstances exceed the invoice price of any

    Product for which a warranty claim is made, nor

    shall Vaisala in any circumstances be liable for lost

    profits or other consequential loss whether direct or

    indirect or for special damages.

    VAISALA ________________________________________________________________________ 7

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    USER'S GUIDE____________________________________________________________________

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    8 ___________________________________________________________________ M210498EN-C

  • Page 11:

    Chapter 2 _____________________________________ PRODUCT OVERVIEW AND MECHANICS

    CHAPTER 2

    PRODUCT OVERVIEW AND

    MECHANICS

    Vaisala´s Hand-held MM70 Device

    MM70 consists of two main units: MI70 indicator and MMP78 probe.

    MM70 Hand-held humidity meter incorporates Vaisala's advanced

    HUMICAP

    ®

    technology which enables reliable and high performance

    moisture in oil measurement.

    Vaisala MM70 is delivered with a factory calibration certificate.

    VAISALA ________________________________________________________________________ 9

  • Page 12:

    USER'S GUIDE____________________________________________________________________

    Structure of the MI70 Indicator

    0605-094

    Figure 1 MI Indicator

    The following numbers refer to Figure 1 on page 10.

    1 = MI70 indicator

    2 = Recharger connector

    3 = Power On/Off key

    4 = Connector port for cable

    5 = Connector port for probe

    10 __________________________________________________________________ M210498EN-C

  • Page 13:

    Chapter 2 _____________________________________ PRODUCT OVERVIEW AND MECHANICS

    Structure of the MMP78 Probe

    0605-087

    Figure 2 MMP78 Probe

    The following numbers refer to Figure 2 on page 11.

    1 = Probe MMP78. Rugged probe with a long stainless steel

    shaft.

    2 = Probe filter

    3 = Calibration button under the screw

    4 = Manual press tool

    5 = Clasp nut

    6 = Fitting body

    Tools

    0605-082

    Figure 3 Protecting Cap and Plastic Wrench

    The following numbers refer to Figure 3 on page 11:

    1 = Protecting cap (including plastic wire for attaching the cap to

    the probe)

    2 = Plastic wrench

    VAISALA _______________________________________________________________________ 11

  • Page 14:

    USER'S GUIDE____________________________________________________________________

    Display Parameters

    - a

    w

    : water activity

    - T: temperature (°C/F)

    - H

    2

    O: mass concentration of water (ppm)(available only if selected

    when ordering)

    Options

    - carrying case for the indicator and the probe

    - connection cables for the fixed transmitters: HMP228, MMT318,

    and MMT330.

    - MI70 Link software kit. The software can be used for transferring

    recorded data to a PC. using a serial line or a USB instrument

    cable. The MM70 readings can be easily monitored and examined

    direcly in a Windows environment on a PC display. The data can

    even be transferred further to a spreadsheet software (such as

    Microsoft Excel) for modification. The MI70 Link Software can be

    ordered from Vaisala. For more information, see section Options

    and Accessories Available on page 66.

    - extension cable (10m)

    12 __________________________________________________________________ M210498EN-C

  • Page 15:

    Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS

    CHAPTER 3

    INSTALLATION AND MOUNTING

    OPTIONS

    Installing and Recharging the Batteries

    1. If you are using alkaline batteries, unscrew the back plate of the

    indicator and insert the alkalines. If MM70 is ordered with

    rechargeable battery, it is already in place as shipped from the

    factory.

    2. Recharge the battery as follows: Plug in charger connector to the

    indicator. The plug is located at the top of the indicator, covered

    by rubber seal. Then connect the charger to wall socket. A

    battery symbol in the left corner of the display starts to roll.

    3. It is not recommended to use MM70 during the first recharging.

    Later on MM70 can be used while recharging.

    4. Duration of recharging depends on the charge level of the

    battery being 4 hours typical. The recommended first recharging

    time is 6 hours.

    5. The battery is full when the battery symbol stops rolling.

    6. Disconnect the charger.

    Turning On the Device

    1. Connect the probe to either one of the bottom connectors of the

    indicator. To ensure durable connection, screw the metal ring

    clockwise until it tightens up. (Respectively, when

    disconnecting the cable, first screw the metal ring

    counterclockwise until it loosens and then pull out the plug.)

    VAISALA _______________________________________________________________________ 13

  • Page 16:

    USER'S GUIDE____________________________________________________________________

    2. Press the power on/off key.

    3. Select the language by using the arrow up/down keys. Confirm

    by pressing the SELECT key. You can select the language later

    on, as well. For more information, see Selecting Language on

    page 27.

    4. To change the date, select Date and press the SET key. Change

    the date by using any of the arrow keys: up/down/left/right. To

    confirm the date, press the OK key. The default date

    presentation format is: year-month-date. If you want to change

    the format, see Setting Date and Time on page 28.

    5. To change the time, select Time and press the SET key. Change

    the time by using any of the arrow keys. To confirm the time,

    press the OK key. The default time presentation format is 24-

    hour clock. If you want to use 12-hour clock, select 12-hour

    clock, and press the On key.

    6. Press the EXIT key. To check and change the pressure setting,

    select YES. Otherwise select NO, basic display appears.

    Installing the Probe

    First select a place for the probe that simulates real conditions of the

    process. Oil should circulate freely around the sensor; a rapid oil flow

    is recommended. Install the probe directly into the circulation system

    and not into the oil reservoir because of deposition.It is recommended

    that the sensor head is installed directly in the process through the ball

    valve assembly. When the ball valve assembly is used, the pipe does

    not have to be emptied or shut down for installation or removal of the

    probe. Install the sensor head transversely against the direction of the

    process flow. Avoid installing into a bend in the pipe.

    NOTE

    Take care not to damage the pipe of the probe. If the pipe is damaged,

    the probe head is less tight and will not go through the clasp nut.

    Make sure that the filter is tightly fastened to protect the sensors..

    Mounting the Probe for Pressurized

    Pipelines/Oils

    Due to the sliding fit, the MMP78 is easy to install into and remove

    from the pressurized process. The probe is especially suitable for the

    14 __________________________________________________________________ M210498EN-C

  • Page 17:

    Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS

    measurements in pipelines. The maximum installation pressure is 10

    bar and the maximum operation pressure is 20 bar.

    0605-086

    Figure 4 MMP78 Pipe Dimensions (in mm); 400 mm

    (adjustment range 340 mm)

    The following numbers refer to Figure 4 on page 15.

    1 = Clasp nut, 27 mm hex nut)

    2 = Fitting body, 24 mm hex head

    Tightening the Clasp Nut

    1. Adjust the probe to a suitable depth according to the type of

    installation and tighten the clasp nut first manually.

    2. Tighten the clasp nut first manually. Mark the fitting screw and

    the clasp nut. Tighten the nut a further 30 - 40° (ca.1/12" turn)

    with a plastic wrench. If you have a suitable torque spanner,

    tighten the nut to max 35±5 Nm (25±4 ft-lbs).

    VAISALA _______________________________________________________________________ 15

  • Page 18:

    USER'S GUIDE____________________________________________________________________

    0605-080

    Figure 5 Tightening Clasp Nut

    The following numbers refer to Figure 5 on page 16 above

    1 = Probe

    2 = Clasp nut

    3 = Fitting screw

    4 = Pen

    NOTE

    Take care not to over tighten the clasp nut to avoid difficulties when

    opening it.

    When the probe is used in a pressurized processes the sensor head

    should preferebly be installed through a ball valve assembly.

    16 __________________________________________________________________ M210498EN-C

  • Page 19:

    Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS

    0605-083

    Figure 6 Sealing Thread Cutting for the Fitting Body

    CAUTION

    In pressurized processed it is essential to tighten the supporting nuts

    and screws very carefully to prevent loosening of the probe by the

    action of pressure

    CAUTION

    Take care not to damage the probe body. A damaged body makes the

    probe head less tight and may prevent it from going through the clasp

    nut.

    Ball Valve Installation

    The ball valve installation is preferred when connecting the probe to a

    pressurized process or pipeline. Use the Vaisala BALLVALVE-1 ball

    valve set or a 1/2" ball valve assembly with a ball hole of 14 mm or

    more. If you install the sensor head ( 12 mm) in a process pipe, please

    note that the nominal size of the pipe must be at least 1 inch (2.54

    cm). Use the manual press tool to press the sensor head into the

    pressurized (< 10 bar) process or pipeline.

    1. Shut down the process if the process pressure is more than 10

    bars. If the pressure is lower there is no need to shut down the

    process.

    2. Make the installation according to the figure below. Install the

    sensor head transversely against the direction of the process

    flow.

    VAISALA _______________________________________________________________________ 17

  • Page 20:

    USER'S GUIDE____________________________________________________________________

    3. Make sure that the temperature at the measurement point is

    equal to that of the process, otherwise the moisture reading may

    be incorrect.

    0605-085

    Figure 7 Ball Valve Installation

    The following numbes refer to Figure 7 on page 18 above.

    1 = Probe

    2 = Clasp nut. The probe slides easily in place when you first fix

    the clasp nut manually. Then complete the installation and

    make it stable by tightening the clasp nut with a plastic

    wrench. Do not overtighten the screw.

    3 = Handle of the ball valve

    4 = Process chamber/pipeline

    5 = Manual press tool

    6 = The groove on the probe indicates the upper adjustment limit

    7 = Ball of the ball valve

    18 __________________________________________________________________ M210498EN-C

  • Page 21:

    Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS

    NOTE

    The probe can be installed in the process through the ball valve

    assembly provided that the process pressure is less than 10 bars. This

    way, the process does not have to be shut down for installing or

    removing the probe. However, if the process is shut down before

    removing the probe, the process pressure can be max. 20 bars.

    Mounting the Probe for Direct Measurement

    (No Pressure)

    1. Lift up the clasp nut, see picture below.

    2. Install the probe into measuring position. When stopping the

    measurement, pull down the clasp nut to clean the probe or just

    wipe the probe with soft cloth.

    0605-088

    Figure 8 Direct Mounting

    The following numbers refer to Figure 8 on page 19 above:

    1 = Lift up the clasp nut

    2 = Pull down to clean the probe

    VAISALA _______________________________________________________________________ 19

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    20 __________________________________________________________________ M210498EN-C

  • Page 23:

    Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS

    CHAPTER 4

    MENU OPERATIONS AND SETTINGS

    Function Keys and Menu Structure

    Navigating in Menu

    0605-106

    Figure 9 Keypad

    The following numbers refer to Figure 9 on page 21 above:

    1 = To open the main menu, first press any of the arrow keys (3),

    then press the middlemost function key (1).

    2 = Function keys left/middle/right

    3 = Arrow keys up/down/left/right

    4 = Power On/Off key

    VAISALA _______________________________________________________________________ 21

  • Page 24:

    USER'S GUIDE____________________________________________________________________

    - To turn the indicator on or off, press the power On/Off key.

    - To open the main menu, press any of the arrow keys and then the

    middlemost function key in sequence.

    - To move in a menu and select an option, press the up/down arrow

    keys. To enter sub-menu of selected option, press the right arrow

    key. To return to the previous menu level, press the left arrow key.

    - To activate a function: Press a function key according to the

    guiding text below the key.

    - To return to the basic display directly from any menu levels, press

    the function key EXIT.

    Basic Display

    0605-096

    Figure 10 Basic Display

    The following numbers refer to

    Figure 10 on page 22 above.

    1 = Selected quantities. You can select up to three quantities at a

    time, for example a

    w

    : Water activity, T: Temperature (C/F),

    H

    2

    O: Moistured oil/dry oil volume (ppm).

    2 = Function key Graphic changes display into curve mode.

    3 = Function key Hold/Save freezes the display and you can save

    the reading into the memory.

    4 = Function key Record is a quick access to the

    Recording/Viewing menu.

    5 = Battery indicator. Shows current status (charge) of the

    battery.

    22 __________________________________________________________________ M210498EN-C

  • Page 25:

    Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS

    Function keys are shortcuts to some functions or menus. Shortcuts for

    Graphic, Hold/Save and Record are preset at the factory. You can

    change these shortcuts by assigning the function keys to other

    functions or menus, as well. For more information on changing

    shortcuts, see Changing the Shorcut Keys on page28.

    Graphical Display

    Graphical display shows you the measurements in a form of curve.

    From the curve you can examine the data trend and history of the last

    minutes. Graphical display shows first the curve of the uppermost

    quantity shown in a basic display.

    1. In the basic display, press the Graphic key. Alternatively you

    can open the MENU, and select Display, Graphic history with

    arrow keys. To view the graph, press the SHOW key.

    2. Graphical display opens. For more information, see Graphical

    Display on page 23.

    3. Press the BACK key to return to the previous menu level.

    Main Menu

    You can change settings and select functions in the menu.

    1. Open the main menu by pressing any of the arrow keys.

    2. Main menu consists of five menu groups: Display, Functions,

    Recording/Viewing, Environment, and Settings. Each group

    contains sub-menus and options of its own.

    3. Move in the menus by using arrow up/down keys. Note that the

    basic display returns if you do not open anything in several

    seconds. If this happens, press any of the arrow keys to re-enter

    main menu.

    4. Open a sub-menu with the right arrow key.

    5. To return to the previous menu level, press the left arrow key.

    6. To return to the basic display, press the EXIT key.

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    Settings

    Display Settings

    0605-102

    Figure 11 Display Setting Menus

    Quantities and Units

    1. Open the MENU: First press an arrow key, and then press the

    OPEN key.

    2. Select Display. Press the right arrow key.

    3. Select Quantities and Units. Press the right arrow key.

    4. Select the desired quantity with the up/down arrow keys and

    press the SELECT key.

    5. To change the unit, select the desired quantity with arrow keys

    and press the UNIT key.

    6. To hide a quantity, select the desired quantity with arrow keys

    and press the HIDE key.

    7. To return to the basic display, press the EXIT key.

    8. If you want to check environment settings, press the YES key (if

    requested), otherwise press the NO key.

    Rounding

    You can select one or two decimal display by using the Rounding

    function. The default setting is rounding off (=two decimal display).

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    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Display. Press the right arrow key.

    3. Select Rounding. Press the right arrow key.

    4. To set rounding on (one decimal display), press the ON key. To

    set rounding off (two decimal display), press the OFF key.

    5. To return to the basic display, press the EXIT key.

    Hold/Save Display

    Hold/Save function enables you to freeze a certain display reading.

    This reading can be saved into the memory.

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Display. Press the right arrow key.

    3. Select Hold/Save.

    4. To freeze the display, press the HOLD key. The frozen

    measurement data is displayed.

    5. To save the reading, press the SAVE key and then return to the

    basic display by pressing the CANCEL key.

    6. You can save several readings with HOLD-SAVE function. The

    data points are indentified on the basis of the saving date and

    time. All the individual readings (data points) are stored in a

    same file marked with a Hand symbol. The file remains in the

    indicator memory even if the indicator is switched OFF.

    7. To view the saved readings, press the function key, select

    Record, then select View recorded data, and press the right

    arrow key.

    8. Select the file marked with the Hand symbol, press the right

    arrow key. Now you can see the saved data readings. Press the

    TIMES key to see the recording timestamps.

    9. To return to the basic display, press the EXIT key.

    Graphic History

    Graphic history shows the data curve of the last hour. To see longer

    graphs, use the data recording function to save the data and then view

    it as a graph.

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    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Display. Press the right arrow key.

    3. Select Graphic History. To enter a graphical history display,

    press the SHOW key.

    4. To get the statistical info on the graph area (minimum,

    maximum and mean values), press the INFO key.

    5. To get the curve of the other selected quantities, press the

    NEXT key. To get the curves of the all quantities, press the

    NEXT key until the text ALL is displayed instead of NEXT.

    Then press the ALL key.

    6. To zoom in the curve, press the up arrow key. To zoom out,

    press the down arrow key. To move the curve in horizontal

    directions, press the left/right arrow keys.

    7. To return to the basic display, first press the BACK key, and

    then the EXIT key.

    User Interface Settings

    0605-117

    Figure 12 User Interface Setting Menus

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    Selecting Language

    You can select any of the following languages for user interface

    language: English, German, French, Finnish, Spanish, Swedish,

    Chinese, Japanese or Russian.

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Settings. Press the right arrow key.

    3. Select User Interface. Press the right arrow key.

    4. Select Language. Press the SET key.

    5. Select the desired option. Press the SELECT key.

    6. To return to the basic display, press the EXIT key.

    If you accidentally select a wrong language, first return to the basic

    display by pressing the rightmost function key as many times as

    needed, then return to the language selection menu by pressing the

    following key string: First press the right arrow key, then the

    middlemost function key, the up arrow key, the right arrow key twice,

    and finally the middlemost function key.

    Automatic Power Off

    When shipped from factory, MM70 has a default setting which turns

    the power off automatically after 15 minutes of inactivity. This is to

    conserve the battery. In case you want to change the inactivity time

    setting to 5 or 30 minutes or turn off the function entirely, do as

    follows:

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Settings. Press the right arrow key.

    3. Select User Interface. Press the right arrow key.

    4. Select Auto Power off. Press the SET key.

    5. Select the desired option. Press the SELECT key.

    6. To return to the basic display, press the CANCEL key and the

    EXIT key.

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    Changing the Shorcut Keys

    As a default, the function keys are shortcuts to Graphic, Hold/Save

    and Record menus. The shortcuts can be changed to other locations to

    correspond your needs.

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Settings. Press the right arrow key.

    3. Select User Interface, press the right arrow key.

    4. Select Program Shortcut Keys, press the START key.

    5. Press the shortcut key that you want to change. E.g. Hold/Save.

    6. For example, if you want to replace the Hold/Save function with

    the Alarm function, press the middlemost function key, then

    select Alarm by using the arrow keys and press the SELECT

    key. Answer YES to confirm your selection. If you do not want

    to select Alarm after all, answer NO and continue from the step

    4.

    7. To return to the basic display, press the EXIT key.

    Turning Key Click and Backlight

    On/Off

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Settings. Press the right arrow key.

    3. Select User Interface. Press the right arrow key..

    4. To turn the key tones on/off, select Key Click and press the

    ON/OFF key.

    5. To return to the basic display, press the EXIT key.

    Setting Date and Time

    To have correct date and time in recorded data files, set the date and

    the time as follows:

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Settings. Press the right arrow key.

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    3. Select Date and Time. Press the right arrow key.

    4. To change the date, select Date and press the SET key. Change

    the date by using arrow keys. To confirm the date, press the OK

    key. The default date presentation format is year-month-date,

    e.g. 2002-06-05. If you want to change the format, select Date

    format: Y-M-D, press the SET key, select either D.M.Y or

    M/D/Y, press the SELECT key.

    5. To change the time, select Time and press the SET key. Change

    the time by using arrow keys. To confirm the time, press the OK

    key. The default time presentation format is 24-hour clock. If

    you want to change the format, select 12-hour clock. Press the

    ON/OFF key.

    6. To return to the basic display, press the EXIT key.

    Device Information

    0605-098

    Figure 13 Device Information Setting Menus

    The basic information about the indicator and the probe is found as

    follows:

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Settings. Press the right arrow key.

    3. Select Device Information. Press the SHOW key.

    4. Information on the MI70 Indicator is displayed. To enter Probe

    Information, press the MORE key.

    5. To return to the basic display, first press the OK key and then

    the EXIT key.

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    0605-099

    Figure 14 Device Information Submenus

    Restoring Factory Settings

    Factory settings can be reverted to clear all changed settings and data

    memory of the indicator. Reverting factory settings does not effect on

    probe calibration.

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Settings. Press the right arrow key.

    3. Select Factory Settings, press the REVERT key.

    4. Answer YES to confirm reverting.

    5. The power turns off automatically. When switching on again,

    the factory settings are reverted. You must set the language, date

    and time again. For more information, see Selecting Language

    on page 27 and Setting Date and Time on page 28.

    PPM-calculation

    In case you have a device with a ppm-output, the ppm-value is

    available as one of the quantities. The calculation model is based on

    the average water solubility behaviour of transformer oils, as follows:

    (A/(T+273.16)+B)

    10×= awppm

    Where

    aw = water activity

    A,B = coefficients (average/oil specific)

    T = temperature (°C)

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    If additional accuracy is needed, more information is found below in

    the section Calculation Model with Oil Specific Coefficients on page

    31.

    Calculation Model with Oil Specific

    Coefficients

    For additional accuracy, oil specific calculation model can be used

    both for mineral and silicon based oils. An oil sample has to be sent to

    Vaisala for modelling. As a result, the specific coefficients (A and B,

    see formula above) for the transformer oil are determined by Vaisala.

    Using these coefficients the accuracy of measurements is increased.

    The determination of specific coefficients shall be agreed with the

    Vaisala representative.

    The determined coefficients of the transformer oil can be programmed

    to the MM70 by Vaisala or by a user according to the following

    instructions.

    NOTE

    Calculation Model with Oil Specific Coefficients is always needed

    for silicone based oils.

    Feeding the Coefficients to the

    MI70 Memory

    You can save in the memory specific coefficients for 4 different oils.

    As shipped from factory the average coefficients are set for the

    number 1 type (H2O oil: 1). Add your own coefficients as follows:

    1. Open the MENU. First press the right arrow key, then press the

    OPEN key.

    2. Select Settings and press the right arrow key.

    3. Select Measurement Settings and press the right arrow key.

    4. If you want to keep the average coefficients under identification

    number 1 (set in the factory), press the SET key and key in

    number for the second oil type.

    5. Select the A value (A:0.0000) and press the SET key.

    6. Set the value A by using the arrow keys up/down/left/right,

    press the OK key.

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    7. Select the B value (B:0.0000) and press the SET key.

    8. Set the value B by using the arrow keys up/down/left/right, press

    the OK key.

    9. You may key in coefficients for 4 different oils. Identify the oil

    by numbering them (1...4). Select the first row (H

    2

    O

    oil

    ) and set

    the identification number. Then feed the coefficients as shown

    above.

    10. Press the EXIT key to return to the basic display.

    11. Remember always select the correct oil type before

    measurements.

    0605-109

    Figure 15 Measurement Setting Menus

    NOTE

    If you want to determine coefficients for oil, see Determination of

    Oil-specific Coefficients on page 55.

    Other Functions

    Setting the Alarm Levels

    0605-092

    Figure 16 Alarm Function Menus

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    MM70 alarms by beeping and blinking the backlight. The alarm turns

    on when the measured value is not between the alarm limits

    (permitted area). Alarm level(s) can be set for only one quantity at a

    time. Set the alarm levels as follows:

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Functions. Press the right arrow key.

    3. Select Alarm, press the right arrow key.

    4. Select Quantity and press the SET key to choose quantity.

    5. Select the desired quantity, press the SELECT key. (Only one

    quantity can be chosen at a time. Only active quantities can be

    selected. To change the active quantities, enter MENU, Display,

    Quantities and units).

    6. Select the first limit, press the SET key (if the alarm function is

    ON, take it OFF). Set the alarm level by using arrow keys. Press

    the +/- key to choose the sign of the alarm level. Press the OK

    key to save the setting.

    7. Select the second limit, then follow instructions in step 6. The

    alarm will go off when the upper limit is exceeded or when the

    lower limit is gone below.If you have only one limit, e.g. if you

    want to detect if the a

    w

    reaches 0.9, set the upper limit to 0.9 and

    the lower limit so low that it never will be reached (for example

    0). Thus, the MM70 will alert when RH rises above 0.9 a

    w

    .

    8. Select Alarm ON/OFF, press the ON key to activate the alarm

    and return back to the basic display.

    9. A note symbol appears on the upper left corner.

    10. When the alarm level is reached, you can stop alarming by

    pressing the OK key. To reactivate the alarm function, answer

    YES. To stop the alarm function completely, answer NO.

    NOTE

    The alarm is not in function when the device is turned off. Remember

    to turn off the automatic power off, see Automatic Power Off on page

    27.

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    Selecting and Scaling the Analog

    Output

    0605-093

    Figure 17 Analog Output Menus

    To get analog measurement data, you need the analog output signal

    cable, see section Options and Accessories Available on page 66. One

    voltage signal channel 0...1.0V can be scaled for the selected quantity.

    1. Connect the analog output signal cable connector to the

    indicator base connector. Connect the screw terminal block as

    follows:

    - Brown wire: Common wire (-)

    - Yellow-green wire: Signal (+)

    2. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    3. Select Functions. Press the right arrow key.

    4. Select Analog output, press the right arrow key.

    5. Select Quantity and press the SET key to choose quantity.

    6. Select quantity, press the SELECT key. (Only one quantity can

    be chosen at a time. Only active quantities can be selected. To

    change the active quantities, enter MENU, Display, Quantities

    and units).

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    7. Select 0.0 V to set the value for the 0.0 V output signal, press

    the SET key (if the analog output is ON, turn it OFF). Set the

    low value by using the arrow keys. Press the+/- key to choose

    the sign of the value. Press the OK key to save the setting.

    8. Select 1.0 V to set the value for the 1.0 V output signal, press

    the SET key. Set the high value by using the arrow keys. Press

    the +/- key to choose the sign of the value. Press the OK key to

    save the setting. Select Analog output on/off, press the ON key

    to activate the analog output and return to the basic display.

    9. A wave sign appears on the upper left corner of the basic

    display.

    10. To deactivate the analog output function, enter MENU;

    Functions, Analog output, Analog output on/off and press the

    OFF key.

    Taking Measurements

    When you start to use the MM70 for the first time, see Chapter 3,

    INSTALLATION AND MOUNTING OPTIONS , on page 13.

    Otherwise follow the instructions below.

    1. Connect the probe to MI70 indicator.

    2. Press the power On/Off key.

    3. Install the probe to the measuring position. When measuring in

    pressurized processes, see the instructions in the Chapter 3

    Mounting the Probe for Pressurized Pipelines/Oils on page 14.

    4. The basic display opens, let the reading stabilize.

    CAUTION

    If you need to disconnect the probe from the indicator, first press the

    power On/Off key to turn the indicator OFF. This ensures that all

    settings and data are saved properly.

    Measuring Other Parameters Simultaneously

    The MI70 indicator is a generic indicator that can be used with

    Vaisala interchangeable humidity (HMP), dewpoint (DMP) and

    carbon dioxide (GMP) probes. Two different probes can be used

    simultaneously.

    1. Turn off the device.

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    2. Connect the DMP70/GMP70/HMP70 probe to the other

    connector port in the bottom of the indicator.

    3. Turn on the device.

    4. Check that the pressure settings of the probes (port I and II) are

    the same, if you are taking measurements from the same

    condition.

    5. The display shows now the reading of the port I probe in the

    upper row(s) and the reading of the port II in the lower row(s).

    Recording Data

    Recording

    0605-113

    Figure 18 Record and View Menu

    1. Press the RECORD key. Alternatively open the MENU, select

    Recording/Viewing.

    2. Select Record data, press the right arrow key.

    3. To change interval, select Interval and press the SET key.

    4. Select the measurement interval with the up/down arrow keys.

    Measurement intervals and maximum recording times are shown

    in the

    Table 1 on page 37.

    5. Press the SELECT key.

    6. To set recording duration, select Duration and press the SET

    key.

    7. Select the recording duration (1 min, 5 min, 15 min, 30 min, 1

    h, 3 h, 12 h, 24 h, 7 days, 30 days, Memory full). Make the

    selection with the arrow keys and finally press the SELECT

    key.

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    8. Start recording: Select Start/Stop recording, press the START

    key. If you choose Memory full option, you will see the

    maximum recording time on the display. You can also delete

    files in order to empty the memory. Press the START key again

    to accept maximum recording time.

    9. You can switch the MM70 off during recording to save battery.

    Display message informs you that recording continues

    undisturbingly even when power is off. If the indicator is

    switched off during recording, the progress bar is shown on the

    display every 10 seconds (all the time, if charger is connected).

    This bar shows the amount of recorded data.

    CAUTION

    Do not disconnect the probe when the data recording is on, even if

    the indicator is off. This may cause loss of recorded data.

    Table 1 Measurement Intervals and Max. Recording Times

    Maximum Recording Time (memory full) Recording Interval

    1 Quantity 2 Quantities 3 Quantities

    1 s 45 min 22 min 15 min

    5 s 3 h 113 h 75 min

    15 s 11 h 5 h 3 h

    30 s 22 h 11 h 7 h

    1 min 45 h 22 h 15 h

    5 min 9 days 4 days 3 days

    15 min 28 days 14 days 9 days

    30 min 56 days 28 days 18 days

    1 h 113 days 56 days 37 days

    3 h 339 days 169 days 112 days

    12 h 1359 days 678 days 451 days

    Stopping Recording

    1. To stop recording, press the function key. Select Record,

    Record data and press the right arrow key. Then select

    Start/Stop recording and finally press the STOP key. .

    2. Now you can view the recorded file by pressing the SHOW key.

    3. Select the measurement interval with the arrow keys.

    Measurement intervals and maximum recording times are shown

    in the Table 1 above.

    4. You can save individual measurement data points with

    Hold/Save function. For more information, see section

    Hold/Save Display on page 25.

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    Viewing Recorded Data

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Recording/Viewing. Press the right arrow key.

    3. Select View recorded data. Press the right arrow key.

    4. Select the file that you want to view, press the right arrow key.

    The files are identified according to the starting date and time of

    recording.

    5. To view the graphical view, first press the GRAPH key, then

    press the TIMES until the recording time stamps are displayed.

    You can return to the recorded values by pressing the VALUES

    key.

    6. To return to the basic display, press the EXIT key.

    Checking the Memory Status

    You can check how much there is free space in the memory.

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Recording/Viewing. Press the right arrow key.

    3. Select Memory Status. Press the SHOW key to view the

    amount of memory in use and the estimated free space left.

    4. To return to the basic display, press the OK and EXIT keys.

    Note that estimate of free space is calculated for current number of

    active quantities. If you change the displayed quantities, the estimate

    will change.

    Deleting All Recorded Files

    The data memory can be cleared as follows:

    1. Open the MENU. First press the right arrow key, and then press

    the OPEN key.

    2. Select Recording/Viewing. Press the right arrow key.

    3. Select Clear data memory. Press the CLEAR key, and answer

    YES to confirm deletion of all recorded data files.

    4. To return to the basic display, press the EXIT key.

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    Transferring Recorded Data to PC

    The recorded data can be transferred to a PC using the MI70 Link

    program. The MI70 Link program can be ordered from Vaisala, see

    section Options and Accessories Available on page 66. You can

    examine the recorded data easily in the Microsoft Windows®

    environment and transfer it further on a spreadsheet program, such as,

    Microsoft Excel® for modifications. Together with the USB

    instrument cable (optional accessory 219687) or the serial connection

    cable it is easy to transfer logged and real time measurement data from

    the MM70 to a PC.

    When using the USB cable consider the following: the MI70 Link

    program contains the driver needed for the USB connection. For the

    system requirements and installation, see the back of the installation

    CD. Follow the installation instructions on the CD. Check that the

    USB cable is not connected. The MI70 Link Setup Wizard will install

    Vaisala MI70 Link on your computer. Installing the USB instrument

    driver can take a few minutes. After the installation is finished,

    connect the USB cable to the USB port on your PC. Windows will

    detect the new device, and use the driver automatically.

    You can now start monitoring the MM70 readings in real time with a

    PC using the MI70 Link program. In case the MI70 Link cannot find

    the instrument, check the following:

    - the MM70 is switched on

    - the USB instrument cable/serial connection cable is properly

    connected to the USB/serial port of your PC

    - another application has not reserved the connection

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    CHAPTER 5

    CALIBRATION AND ADJUSTMENT

    General Notes about Calibration and

    Adjustment of Transmitters

    Using MM70 in Checking and

    Adjusting

    Vaisala´s HMP228, MMT318 and MMT330 series transmitters can be

    calibrated and adjusted by using MM70.

    - In the field: Check and adjust a fixed transmitter´s reading against

    MM70´s calibrated reference probe.

    - One or two point calibrations and adjustments can be done by using

    a MI70 indicator and Vaisala´s humidity calibrator HMK15.

    Using Calibration Cables

    For calibration and adjustment connect MM70 to fixed transmitter by

    using one of the following connection cables.

    - 27159ZZ connection cable for HMP228 transmitters

    - DRW216050 connection cable for MMT318 transmitters.

    - 211339 connection cable for MMT330 transmitters.

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    Calibration and Adjustment of

    HMP228 Series Transmitters

    You can check all the parameters a

    w

    , T and RH, but only RH can be

    adjusted. You can calibrate your transmitter against a calibrated

    reference probe of MM70 or against a calibrator's reference humidity

    by using MI70 indicator in communication. Follow the first 12 steps

    and continue according to the chosen calibration method.

    1. Connect the 27159ZZ-calibration cable to the X5 connector of

    the HMP228-series transmitter (X5 connector = 6-pin connector

    on the left side of the motherboard).

    2. Connect the other end of the calibration cable to either of the

    MM70´s connector port located on the bottom of the indicator,

    see Figure 1 on page 10.

    3. Turn on the MM70.

    4. Open the MENU. First press the right arrow key, then press the

    OPEN key.

    5. Select Functions. Press the right arrow key.

    6. Select Calibrate transmitters. Press the right arrow key.

    7. Select 1.Baud rate and 2.Serial format. Press the SET key to

    change the serial settings. Serial settings of HMP228 and MM70

    should be the same. (HMP228 factory serial settings: 4800, 7,

    even 1).

    8. Select 3.Start calibration, press the START key. If the serial

    settings of MM70 are not compatible with the settings of

    HMP228, or the cable connection is not working, ensure that the

    serial settings of HMP228 and the settings of MM70 are the

    same. Check the cable connection. Then retry connection in step

    6.

    9. After connection has been established, start the

    calibration/adjustment by pressing the OK key.

    10. Select the quantity to check (a

    w

    /T/RH) or to adjust (RH), press

    the SELECT key.

    11. Check the environment settings of MM70 probe, if needed.

    Press the YES or NO key.

    12. The first row shows the reading of the probe/transmitter

    connected to the port I, the second row shows the reading of the

    probe/transmitter connected to the port II. The third row RH is

    the difference between the readings of the ports.

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    0605-091

    Figure 19 Adjustment Mode

    Relative Humidity Adjustment by

    Using a Calibrated Reference Probe

    When using this adjustment method, start with the steps 1 through 12

    on the previous page. Then proceed as follows:

    1. Ensure that the probes are located in the same conditions.

    2. Wait until the readings have stabilized. If the difference between

    the humidity readings is less than 2 % RH, there is no immediate

    need for adjustment.

    3. Adjust the transmitter reading to correspond a reading of the

    reference probe by pressing the ADJUST key.

    4. Select To same as RH

    I/II

    . Press the SELECT key.

    5. Confirm by pressing the YES key.

    6. To return to the basic display, first press the BACK key, then

    the EXIT key twice.

    1-point Relative Humidity

    Adjustment by Using a Calibrator

    You can use Vaisala humidity calibrator HMK15 to achieve the

    reference humidities. MI70 indicator is working as a communicator in

    the calibration procedure. When using this adjustment method, start

    with the steps 1 through 12 on the previous page. Then proceed as

    follows:

    1. Insert the transmitter probe to the reference humidity.

    2. Press the ADJUST key.

    3. Select 1-point adjustment. Press the SELECT key.

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    4. Wait until the reading is stabilized (takes about 30 minutes).

    You can follow the stabilization from the graph display, by

    pressing the GRAPH key.

    5. Press the READY key when the value is stabilized in the

    reference humidity.

    6. Enter the correct humidity value by using the arrow keys. Press

    the OK key.

    7. Confirm by pressing the YES key.

    8. To return to the basic display, first press the BACK key, then

    the EXIT key twice.

    2-point Relative Humidity

    Adjustment by Using a Calibrator

    You can use Vaisala humidity calibrator HMK15 in calibration and

    adjustment. Note that the difference between the two reference

    humidities should be at least 50%. MI70 indicator is working as a

    communicator in the calibration procedure. When using this

    adjustment method, start with the steps 1 through 12 in the section

    Calibration and Adjustment of HMP228 Series Transmitters on page

    42. Then proceed as follows:

    1. Insert the transmitter probe to the first reference humidity.

    2. Press the ADJUST key.

    3. Select 2-point adjustment. Press the SELECT key.

    4. Wait until the reading is stabilized (takes about 30 minutes).

    You can follow the stabilization from the graph display, by

    pressing the GRAPH key.

    5. Press the READY key when the value is stabilized in the first

    reference humidity.

    6. Enter the first referenc humidity value by using the arrow keys.

    Press the OK key.

    7. Insert the transmitter probe to the second reference humidity.

    8. Wait until the reading is stabilized (takes about 30 minutes or

    more). You can follow the stabilization from the graph display,

    by pressing the GRAPH key.

    9. Press the READY key when the value is stabilized in the second

    reference humidity.

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    10. Enter the second reference humidity value by using the arrow

    keys. Press the OK key.

    11. Confirm by pressing the YES key.

    12. To return to the basic display, first press the BACK key, then

    the EXIT key twice.

    Calibration and Adjustment of

    MMT318 Transmitters

    You can check and adjust MMT318 transmitter reading against a

    calibrated reference probe of MMP78 or against another reference

    condition by using MI70 indicator in communication. Follow the first

    4 steps and continue according to the chosen calibration method.

    1. Connect the DRW216050-calibration cable between the screw

    terminal connector of the MMT318 transmitter and the MI70

    indicator.

    2. Turn on MM70.

    - In case you use a MMP78 probe as a reference: The reading

    of the transmitter is shown on the first or middle row of the

    display, depending on the connector port to which the

    calibration cable is connected. Value of the port I is shown on

    the upper row of the display and the value of the port II on

    the lower row of the display. Difference of the readings is

    shown on the lowest row.

    - In case MI70 is used as an display, the reading of the

    MMT318 transmitter is shown on the display.

    3. Remove the MMI318 transmitter unit from the mounting plate

    and press the adjustment key once. Now MI70 is starting the

    Adjustment mode.

    4. Press the OK key to start adjustment.

    Field Checking and Adjustment by

    Using a Calibrated Reference Probe

    When using this adjustment method, start with the steps 1 through 4 in

    the section

    Calibration and Adjustment of MMT318 Transmitters on

    page

    45. Then proceed as follows:

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    1. Select a

    w

    , RH, T or H

    2

    O (H

    2

    O can only be checked, not

    adjusted). Press the SELECT key.

    2. Check that the probes are located in equal conditions and wait

    until the readings are stabilized (can take 30 minutes or more). If

    you are near the probes, do not breathe towards them.

    3. To continue adjusting, press the ADJUST key.

    4. Select To same as... Press the SELECT key. (MI70 always

    recognizes the port to which the MMP70-series probe is

    connected.)

    5. Confirm by pressing the YES key.

    6. Adjustment is done. To return to the basic display, first press the

    BACK key, then the EXIT key.

    7. Switch off the MI70 and detach the calibration cable.

    1-point Adjustment by Using a

    Calibrator

    When adjusting a transmitter only in one reference condition, take

    care that the reference condition represents well the measuring

    environment.

    If you use humidity calibrator HMK15, use the adapter fitting (13.5

    mm) on the measurement hole.

    When using this adjustment method, start with the steps 1 through 4 in

    the section

    Calibration and Adjustment of MMT318 Transmitters on

    page

    45. Then proceed as follows:

    1. Select the quantity and press the SELECT key.

    2. Remove the filter from the transmitter´s probe and insert the

    probe head into the reference condition.

    3. To continue adjusting, press the ADJUST key.

    4. Select 1-point adjustment, press the SELECT key.

    5. Press the READY key when the reading is stabilized in the

    reference condition (takes about 30 minutes or more). You can

    follow the stabilization from the graph display, by pressing the

    GRAPH key.

    6. Enter correct reference value by using the arrow keys. Press the

    OK key.

    7. Confirm by pressing the YES key.

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    8. Adjustment is done. To return to the basic display, first press the

    BACK key, then the EXIT key.

    9. Detach the calibration cable.

    2-point Adjustment by Using a

    Calibrator

    If you use humidity calibrator HMK15, use the adapter fitting (13.5

    mm) on the measurement hole.

    When using this adjustment method, start with the steps 1 through 4 in

    the section Calibration and Adjustment of MMT318 Transmitters on

    page 45. Then proceed as follows:

    1. Select the quantity and press the SELECT key.

    2. Remove the filter from the transmitter´s probe and insert the

    probe head into the reference condition.

    3. To continue adjusting, press the ADJUST key.

    4. Select 2-point adjustment, press the SELECT key.

    5. Press the READY key when the reading is stabilized in the

    reference condition (takes about 30 minutes or more).

    6. Enter correct reference value by using the arrow keys. Press the

    OK key.

    7. Remove the probe and insert the probe head into the second

    reference condition. You can follow the stabilization from the

    graph display, by pressing the GRAPH key.

    8. Press the READY key when the reading is stabilized in the

    second reference condition.

    9. Enter the higher reference humidity value by using the arrow

    keys. Press the OK key.

    10. Confirm the adjustment by pressing the YES key. (By pressing

    the NO key you will return to adjustment mode display and no

    changes are made.) Note that if the difference between two

    references is less than 50%, adjustment cannot be done.

    11. Adjustment is done. To return to the basic display, first press the

    BACK key, then the EXIT key.

    12. Detach the calibration cable.

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    Calibration and Adjustment of

    MMT330 Transmitters

    You can check and adjust MMT330 transmitter reading against a

    calibrated reference probe of MMP78 or against another reference

    condition by using MI70 indicator in communication. Follow the first

    4 steps and continue according to the chosen calibration method.

    1. Connect the 211339-connection cable between the service port

    of the MMT330 transmitter and the bottom connector of the

    MI70 indicator. To ensure durable connection, screw the metal

    ring (located at the round end of the cable) clockwise until it

    tightens up. (Respectively, when disconnecting the cable, first

    screw the metal ring counterclockwise until it loosens and then

    pull out the plug.)

    2. Turn on the indicator.

    - In case you use a MMP78 probe as a reference: The reading

    of the transmitter is shown on the first or middle row of the

    display, depending on the connector port to which the

    calibration cable is connected. Value of the port I is shown on

    the upper row of the display and the value of the port II on

    the lower row of the display. Difference of the readings is

    shown on the lowest row.

    - In case MI70 is used as an display (without its own probe),

    the reading of the MMT330 transmitter is shown on the

    display.

    3. Remove the MMI330 transmitter unit from the mounting plate

    and press the adjustment key once. Adjustment key is located at

    the mother board of the transmitter. Now MI70 is starting the

    Adjustment mode.

    4. Press the OK key to start adjustment.

    Field Checking and Adjustment by

    Using a Calibrated Reference Probe

    When using this adjustment method, start with the steps 1 through 4 in

    the section Calibration and Adjustment of MMT330 Transmitters on

    page 48. Then proceed as follows:

    1. Select a

    w

    , RH, T or H

    2

    O (H

    2

    O can only be checked, not

    adjusted). Press the SELECT key.

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    2. Check that the probes are located in equal conditions and wait

    until the readings are stabilized (can take 30 minutes or more). If

    you are near the probes, do not breathe towards them.

    3. To continue adjusting, press the ADJUST key.

    4. Select To same as... Press the SELECT key. (MI70 always

    recognizes the port to which the MMP70-series probe is

    connected.)

    5. Confirm by pressing the YES key.

    6. Adjustment is done. To return to the basic display, first press the

    BACK key, then the EXIT key.

    7. Switch off the MI70 and detach the calibration cable.

    1-point Adjustment by Using a

    Calibrator

    When adjusting a transmitter only in one reference condition, take

    care that the reference condition represents well the measuring

    environment.

    When using this adjustment method, start with the steps 1 through 4 in

    the Calibration and Adjustment of MMT330 Transmitters on page 48.

    Then proceed as follows:

    1. Select the quantity and press the SELECT key.

    2. Remove the filter from the transmitter´s probe and insert the

    probe head into the reference condition.

    3. To continue adjusting, press the ADJUST key.

    4. Select 1-point adjustment, press the SELECT key.

    5. Press the READY key when the reading is stabilized in the

    reference condition (takes about 30 minutes or more). You can

    follow the stabilization from the graph display, by pressing the

    GRAPH key.

    6. Enter correct reference value by using the arrow keys. Press the

    OK key.

    7. Confirm by pressing the YES key.

    8. Adjustment is done. To return to the basic display, first press the

    BACK key, then the EXIT key.

    9. Detach the calibration cable.

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    2-point Adjustment by Using a

    Calibrator

    When using this adjustment method, start with the steps 1 through 4 in

    the section Calibration and Adjustment of MMT330 Transmitters on

    page 48. Then proceed as follows:

    1. Select the quantity and press the SELECT key.

    2. Remove the filter from the transmitter´s probe and insert the

    probe head into the reference condition.

    3. To continue adjusting, press the ADJUST key.

    4. Select 2-point adjustment, press the SELECT key.

    5. Press the READY key when the reading is stabilized in the

    reference condition (takes about 30 minutes or more).

    6. Enter correct reference value by using the arrow keys. Press the

    OK key.

    7. Remove the probe and insert the probe head into the second

    reference condition. You can follow the stabilization from the

    graph display, by pressing the GRAPH key.

    8. Press the READY key when the reading is stabilized in the

    second reference condition.

    9. Enter the higher reference value by using the arrow keys. Press

    the OK key.

    10. Confirm the adjustment by pressing the YES key. (By pressing

    the NO key you will return to adjustment mode display and no

    changes are made.) Note that if the difference between two

    references is less than 50%, adjustment cannot be done.

    11. Adjustment is done. To return to the basic display, first press the

    BACK key, then the EXIT key.

    12. Detach the calibration cable.

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    Calibration and Adjustment of MM70 Series

    Probes

    General about Calibrations

    The MM70 is fully calibrated as shipped from factory. Adjustment

    should be done if there is a reason to believe that device is not within

    the accuracy specifications. The recommended calibration interval is

    one year.

    It is recommended to send the device to Vaisala Service Centre for

    calibration and adjustment, see contact information in section Vaisala

    Service Centers on page 61. Alternatively, user can calibrate and

    adjust MM70 by following the instructions below.

    Preparations before the Calibration

    Before calibration the used sensor should be cleaned with instrument

    air to blow out existing oil or gently first flush with hepthane (C7H16)

    and dry with instrument air. This is to decrease response time and to

    prevent contamination of the salt bath and change of the reference

    condition. See section MAINTENANCE on page 59.

    NOTE

    It is important to clean the sensor before calibration as the dirty

    sensor can contamine the salt bath and change the reference

    condition.

    When using Vaisala humidity calibrator HMK15, use the adapter

    fitting (13.5 mm hole). Before starting the adjustment mode, take out

    the screw vovering the calibration button (item 3 in Figure 2). See

    Figure 2 on page 11.

    Relative Humidity Adjustment

    Li-Cl-NaCl Automatic Adjustment

    LiCl-NaCl automatic adjustment is a two-point adjustment in

    reference humidities of 11.3 % (LiCl) and 75 % (NaCl). You don't

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    have to feed the reference values, the MM70 displays the accurate

    value based on the measured temperature and the Greenspan table

    stored into the memory of the MM70. Make the adjustment as

    instructed in the section below (select LiCl-NaCl autom. on item 8

    and follow the display instructions).

    2-point Adjustment

    Low humidity references 0 % (Nitrogen)/ 11.3 % (LiCl) and higher

    humidity references 75 % (NaCl)/ 97 % (K2SO4) are recommended

    for two-point adjustment. Ensure that the difference between the

    humidity references is more than 50 %.

    1. When adjusting both relative humidity and temperature, please

    make the temperature adjustment first.

    2. Check that the MM70 is switched on.

    3. Take out the screw from the probe handle to expose the

    calibration button. Press the button with a small screwdriver.

    When pressing the button, indicator turns to adjusting mode.

    4. Press the OK key to start the adjustment mode.

    5. Select RH, press the SELECT key.

    6. To check the environmental settings, press the YES key. To

    continue directly to adjustment mode, press the NO key.

    7. Now the adjustment mode is on, press the ADJUST key to

    select the adjustment method.

    8. Select 2-point adjustment, press the SELECT key. Press the

    OK key to continue.

    9. Set the probe to a lower reference relative humidity. If using

    HMK15 calibrator, use the adapter fitting (13.5 mm hole).

    10. You can follow the stabilization from the graph display, by

    pressing the GRAPH key. When the reading is stabilized, press

    the READY key.

    11. Enter value for the lower reference humidity by using the arrow

    keys. Press the OK key.

    12. Set the probe to the higher reference humidity. You can follow

    the stabilization from the graph display, by pressing the

    GRAPH key. When the reading is stabilized, press the READY

    key.

    13. Enter value for the higher reference humidity by using the arrow

    keys. Press the OK key.

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    14. Confirm the adjustment, press the YES key (by pressing the NO

    key you return to adjustment mode display and no changes are

    made). If the difference between two references is less than 50

    %, adjustment can not be done.

    15. Adjustment is done. To return to the basic display, first press the

    BACK key, then press the EXIT key.

    16. Replace the screw onto calibration key.

    You can attach a sticker on the calibration key screw to seal the

    calibration.

    1-point Adjustment

    Usually it is recommended to make an adjustment in two reference

    humidities. If adjustment is done by using one reference humidity (1-

    point adjustment), select the reference humidity so that it represents

    the measuring environment. Make the adjustment in one point as

    instructed in the previous section "2-point Adjustment" (select 1-point

    adjustment and follow the display instructions).

    Temperature Adjustment

    Temperature adjustment in one or two points can be done if there is

    reason to believe that the adjustment is changed. If adjustment is done

    only in one point, reference condition shall represent the measuring

    environment.

    1. Take out the screw covering the calibration button (in the probe

    handle).

    2. Press the calibration key. For pressing, use tool with thin and

    sharp point, such as small screwdriver. When pressing the key,

    indicator turns to adjusting mode.

    3. Select T, press the SELECT key.

    4. Now the adjustment mode is on, press the ADJUST key to

    select the adjustment method: 1-point adjustment or 2-point

    adjustment.

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    1-point Adjustment

    When using this adjustment method, start with the steps 1 through 4 in

    the previous section Temperature Adjustment on page 53. Then

    proceed as follows.

    1. Select 1-point adjustment, press the SELECT key.

    2. Set the probe to a reference temperature. You can follow the

    stabilization from the graph display. Press the READY key

    when the reading is stabilized in the reference.

    3. Enter value for reference temperature by using the arrow keys.

    Press the OK key.

    4. Confirm the adjustment, press the YES key. (By pressing the

    NO key you will return to adjustment mode display and no

    changes are made.)

    5. Calibration is done. To return to the basic display, first press the

    BACK key and then press the EXIT key.

    2-point Adjustment

    When using this adjustment method, start with the steps 1 through 4 in

    the previous section Temperature Adjustment on page 53. Then

    proceed as follows.

    1. Select 2-point adjustment, press the SELECT key.

    2. Set the probe to a lower reference temperature. You can follow

    the stabilization from the graph display.

    3. Press the READY key when the reading is stabilized.

    4. Enter value for the lower reference temperature by using the

    arrow keys. Press the OK key.

    5. Set the probe to the higher reference temperature. You can

    follow the stabilization from the graph display. Press the

    READY key when the reading is stabilized.

    6. Enter value for the higher reference temperature by using the

    arrow keys. Press the OK key.

    7. Confirm the adjustment, press the YES key. (By pressing the

    NO key you will return to adjustment mode display and no

    changes are made.) If the difference between two references is

    less than 30° C, adjustment cannot be made.

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    8. Calibration is done. To return to the basic display, first press the

    BACK key and then press the EXIT key.

    Last Adjustment Date

    To see the last adjustment date, select Last adjustment date. You can

    check this date also from the Device information. For more

    information, see section Device Information on page 29.

    Determination of Oil-specific Coefficients

    The equation of the Ppm conversion is:

    ppm = aw*10

    (B+A/T)

    With the following procedure the coefficients A and B can be defined

    for the equation:

    LOG(PPM

    sat

    )= B + A/T

    Equipment needed:

    - Apparatus for determining water content ( for example,

    coulometric titrator and e.g. magnetic stirrer.)

    - Oil test station:

    - a temperature test chamber

    - for example, a conical flask (1L) sealed by PTFE stopper

    with an inlet for a moisture probe

    - MMT330 by Vaisala

    - magnetic stirrer.

    Procedure:

    1. Define the water content of the oil sample with the titration. Use

    the oil moisture level that is close to real conditions in the

    process.

    2. Measure the water activity of this sample with MMT330 at two

    temperatures that differ at least 20 °C. Follow the measurement

    stabilization illustrated by the graph.

    NOTE

    The sample has to be sealed very carefully i.e. not to be in contact

    with ambient air, which would change the water content.

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    NOTE

    If the oil sample is very dry and the temperatures are close to each

    other, it may cause inaccuracy to the calculation model. In order to

    get the best possible performance it is recommended to use oil

    conditions that represent real conditions in application.

    Recommended values for sample are aw approx. 0.5 at 20 °C.

    3. Define the correlation between aw, T and PPM (w/w) from the

    measured values. Calculate A and B according to the following

    example.

    [] []

    () ()

    1/1-2/1

    1(-2(

    TT

    TPPMLOGTPPMLOG

    A

    satsat

    ))

    =

    []

    )(

    A/T1 - 1TPPMLOGB

    sat

    =

    Table 2 Example: Measured Water Content 213 ppm

    T (°C) aw

    p

    p

    m

    saturation

    24.1 0.478 213/0.478=445.6067

    57.6 0.188 213/0.188=1132.979

    A = (LOG(1132.98)-LOG(445.607))/(1/(57.6+273.16)-

    1/(24.1+273.16)) = -1189.4581

    B= LOG(445.607)-(-1189.4581)/(24.1 + 273.16) = 6.6503583

    Assumptions:

    The isoterm of water activity versus water concentration is linear and

    the solubility curve has the form of the given equation.

    NOTE

    The sample has to be sealed very carefully i.e. it must not be in

    contact with ambient air, which would change the water content.

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    NOTE

    If the oil sample is very dry, and the temperatures are close to each

    other, it may cause inaccuracy to the calculation model. To get the

    best possible performance it is recommended to use oil conditions

    that represent real conditions in application. Recommendation for

    sample is e.g. aw approx. 0.5 at 20 °C.

    Assumptions:

    The isoterm of water activity versus water concentration is linear and

    the solubility curve has the form of the given equation.

    Error Messages

    If MM70 displays an error message, first check that the sensor is

    connected properly and let the probe dry if there is condensed water in

    the probe.

    In case of constant error, please contact Vaisala Service Center. For

    more information, see

    Vaisala Service Centers on page 61.

    Error Message Types

    Eeprom read/write error

    ADC malfunction

    Operating voltage out of range

    Analog voltage out of range

    Temperature/humidity sensor open/short circuit

    Temperature sensor current leak

    Temperature/humidity measurement malfunction

    Temperature value out of range

    Relative humidity value out of range

    Sensor not found

    Amplifier chain malfunction

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    CHAPTER 6

    MAINTENANCE

    Changing the Filter and Sensor

    1. Screw out the filter from the probe head, see Figure 2 on page 11.

    2. Remove the damaged sensor by pulling it out. Handle the sensor by the

    plastic socket.

    3. Insert a new sensor.

    4. Make a humidity calibration.

    5. Screw a new filter on the probe head, take care to tighten the filter

    properly (5.1 Nm).

    Cleaning the Sensor

    Make sure to clean the sensor before calibration and storing the

    MMP78 probe. For cleaning of the probe you need instrument air and

    heptane liquid. Dry with instrument air to prevent oxidation of the

    sensor. The oxidation of the sensor can cause extended response times

    or drifting.

    1. Blow the probe head (with filter) with instrument air to remove

    the remains of the oil.

    2. Immerse the probe head into heptane liquid and rinse out the oil.

    Plastic

    socket

    3. Dry the probe head with instrument air. In case you are going to

    calibrate the probe, remove the filter and dry the sensor with

    instrument air. Check that the sensor looks clean.

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    Changing the Battery

    A new rechargeable battery pack can be ordered from Vaisala. Change

    the battery pack as follows:

    1. Open the back plate of the indicator by opening the screw of the

    back plate.

    2. Remove the old battery pack. Detach the black connector by

    gently pulling it up from the wires.

    3. Connect the black connector of the new battery pack, ensure that

    the position of the connector is as indicated in figure (red and

    black wires are on the upper edge of the connector). Do not push

    the connector with conducting material.

    4. Place the battery pack, close the back plate and tighten the

    screw.

    5. Change the battery pack before use. For more information, see

    section

    Installing and Recharging the Batteries on page 13.

    In case you are installing battery pack and you have a device with

    alkaline batteries, remove the metal contact before installing the

    battery pack.

    0505-239

    Figure 20 Installing the Battery Pack

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    Vaisala Service Centers

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    Chapter 7 ______________________________________________ TECHNICAL SPECIFICATIONS

    CHAPTER 7

    TECHNICAL SPECIFICATIONS

    Measured Variables

    Water Activity a

    w

    Measurement range 0...1 (-40...+60 C/-40 ...+140 F)

    Accuracy 0.02(0...0.9)

    0.03(0.9...1.0)

    Response time (90%) at +20 C in still

    oil (stainless steel filter)

    10 min

    Humidity sensor HUMICAP

    Temperature

    Measurement range -40...+100 C (-40 ...+212 F)

    Typical accuracy at +20 C (+68 C) 0.1 C (0.18 F)

    Typical temperature dependence of

    electronics

    0.005 C/C (0.003 F/F)

    Temperature sensor Pt 100 RTD 1/3 Class B IEC

    751

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    MMP78 Probe

    Humidity sensor HUMICAP

    Temperature sensor Pt 100 1/3 Class B IEC 751

    Operating temperature range for

    electronics

    -40...+60 C, -40...+140 F

    Operating pressure range 0...20 bar

    Standard sensor protection Stainless steel grid

    Housing classification IP65 (NEMA 4)

    Housing material ABS/PC blend

    Probe material Stainless steel (AIS316L)

    Probe cable length (between indicator

    and the probe handle)

    1.9 m

    Extension cable 10 m

    Probe head diameter 12 mm (0.47 inch)

    Weight (including protective cap and

    manual press tool)

    520 g

    MI70 Indicator

    Operating temperature range -10...+40 C

    Operating humidity 0...100% RH, non-condensing

    Menu languages English, Finnish, French,

    German, Spanish, Swedish,

    Chinese, Japanese or Russian.

    Display LCD with backlight

    Graphic trend display of any

    quantity

    Character height up to 16 mm

    Probe inputs 1 or 2

    Power supply Rechargeable NIMH battery

    pack with AC-POWER or 4 x

    AA size alkalines, type IEC

    LR6

    Analog output 0...1 VDC

    Output resolution 0.6 mV

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    Accuracy 0.2 % full scale

    Temperature dependence 0.002 %/ C full scale

    Minimum load resistor 10 kohm to ground

    Data interface RS232C (EIA-232)

    Data logging capacity 900...2700 real time data points

    Logging interval 1 s to 12 h

    Logging duration 1 min...memory full

    Alarm Audible alarm function

    Housing classification IP54

    Weight 400 g

    Housing material ABS/PC-blend

    Battery Pack

    continuous use 48 h typical at +20 C (68 F) Operating times in

    data logging use up to 30 days

    Power consumption during charge 10 W max

    Charging time 4 h

    General Facts about the MM70

    Hand-held Humidity and

    Temperature Meter

    Storage temperature -40...+70 C

    Storage humidity range 0...100% Non-condensing

    Electromagnetic Compatibility

    Complies with the following standard: EN 61326-1:1997+Am 1:1998,

    Electrical equipment for measurement, control and laboratory use -

    EMC requirements: Portable test and measurement equipment.

    VAISALA _______________________________________________________________________ 65

  • Page 68:

    USER'S GUIDE____________________________________________________________________

    Options and Accessories Available

    Table 3 List of Options and Accessories

    Description Order code

    AC-Adapters

    Euro AC-adapter MI70EUROADAPTER

    UK AC-adapter MI70UKADAPTER

    US AC-adapter MI70USADAPTER

    AUS AC-adapter MI70AUSADAPTER

    Cables

    Analog output signal cable 27168ZZ

    Connection cable for MMT318 DRW216050

    Connection cable for HMP228 27159ZZ

    Connection cable for MMT330 211339

    Extension cable (10m) 213107SP

    Carrying case

    Carrying case for two probes (MMP78,

    DMP74A/B)

    MI70CASE2

    Probe Accessories

    Stainless steel filter HM47453SP

    Protective cap DRW215988SP

    Others

    Measurement indicator MI70

    Manual press tool HM36854SP

    Plastic wrench DRW216040SP

    Calibration adapter for HMK15 211302

    Fitting body ISO1/2 DRW212076SP

    Fitting body NPT1/2

    N

    PTFITBODASP

    Thread adapter ISO1/2 to NPT1/2 210662SP

    PC Connection tools

    MI70 Link software interface kit including a

    USB instrument cable for MI70

    219687

    MI70 Link software interface kit including a

    serial connection cable for MI70

    MI70LINK

    66 __________________________________________________________________ M210498EN-C

  • Page 69:

    Chapter 7 ______________________________________________ TECHNICAL SPECIFICATIONS

    Dimensions in mm (inches)

    Figure 21 MI70 Indicator

    VAISALA _______________________________________________________________________ 67

  • Page 70:

    USER'S GUIDE____________________________________________________________________

    Adjustment range 250m m

    340 (13.39)

    190 (7.48)

    170 (6.69)

    1

    3

    .

    5

    (

    0

    .

    5

    3

    )

    1

    2

    (

    0

    .

    4

    7

    )

    Figure 22 MMP78 Probe

    68 __________________________________________________________________ M210498EN-C

  • Page 71:

    www.vaisala.com

    *

    M

    210498

    EN

    *

DOC-72e5dd90:

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