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66, Vaisala HUMICAP MM70 USER'S GUIDE____________________________________________________________________ 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 (betw…
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28, USER'S GUIDE____________________________________________________________________ 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 othe…
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45, Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 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 immedi…
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47, Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 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.…
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34, Vaisala HUMICAP MM70 USER'S GUIDE____________________________________________________________________ 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. R…
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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…
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44, Vaisala HUMICAP MM70 USER'S GUIDE____________________________________________________________________ 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-calibrati…
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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
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65, 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…
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26, USER'S GUIDE____________________________________________________________________ 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 k…
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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: ye…
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69, Vaisala HUMICAP MM70 Chapter 7 ______________________________________________ TECHNICAL SPECIFICATIONS Dimensions in mm (inches) Figure 21 MI70 Indicator VAISALA _______________________________________________________________________ 67
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37, Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS 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 s…
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59, Vaisala HUMICAP MM70 Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 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…
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57, Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 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 …
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49, Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 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 Calibrati…
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35, Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS 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 ri…
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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 ______________________________________________________…
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4, Vaisala HUMICAP MM70 USER'S GUIDE____________________________________________________________________ Rounding .............................................................................24 Hold/Save Display ...............................................................25 Graphic History....................................................................25 User Interface Settings........................................................26 Selecting Language.............................................................27 Automatic Power Off.......................…
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41, Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS 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…
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55, Vaisala HUMICAP MM70 Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 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 att…
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43, Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 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…
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67, Chapter 7 ______________________________________________ TECHNICAL SPECIFICATIONS 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…
