Oregon Scientific THC268 Operation & User’s Manual

MULTI-CHANNEL
CABLE FREE
REMOTE THERMO SENSOR
MODEL: THC268
ENGLISH
USE’S MANUAL
INTRODUCTION
Congratulations on your purchasing the THC-268 Remote Thermo Sensor.
The Remote Thermo Sensor is used with the Oregon Scientific 433MHz
Multi-Channel In-Out Thermometers , Wireless Weather Stations, Weather
Clocks etc. to monitor temperature changes of remote or outdoor sites.
Operation is easy and no wire installation is required.
MAIN FEATURES:
A LCD
Displays the current temperature monitored by the remote unit and
indicates the selected channel
B LED  INDICATOR
Flashes when the remote unit transmits a reading
C TEMPERATURE SENSOR PROBE
On 10 feet ( 3 meters ) cable.
D °C/°F SLIDE SWITCH
Selects between Centigrade ( °C ) and Fahrenheit ( °F )
E CHANNEL SLIDE SWITCH
Designates the remote unit Channel 1, Channel 2 or Channel 3
F RESET BUTTON
Returns all settings to default values
G BATTERY COMPARTMENT
Accommodates two AA-size batteries
H BATTERY DOOR
I WALL-MOUNT HOLDER
Supports the remote unit in wall-mounting
J REMOVABLE TABLE STAND
For standing the remote unit on a flat surface
COMPATIBLE PRODUCTS
Following is the list of some Oregon Scientific products that the THC268
is compatible with:
Cable Free Weather Forecaster with Thermo-Hygrometer and Radio
Controlled Clock: BAR122HGA
Cable Free Weather Forecaster with Thermo-Hygrometer, Radio Con-
trolled Clock and Ice Alarm: BAR913HGA
Cable Free Weather Station with Thermo-Hygrometer and Radio Con-
trolled Clock: BAR938HGA
Cable Free Thermo-Hygrometer: EMR963HG
Cable Free Thermometer with Radio Controlled Clock: RMR112
Cable Free Weather station: WMR968
Cable Free Weather station: WMR112
BEFORE YOU BEGIN
For best operation,
1. Assign different channels to different remote units.
2. Insert batteries for remote units before doing so for the main unit.
( Main unit of models listed under optional items )
3. Place the main unit as close as possible next to the remote unit, reset
the main unit after installing batteries. This will ensure easier
synchronization between the transmission and reception of signals.
4. Position the remote unit and main unit within effective transmission
range, which, in usual circumstances, is 20 to 30 meters(upto 100 feet).
Note that the effective range is vastly affected by the
building materials and where the main and remote units are
positioned. Try various setups for best result.
Though the sensor is weather proof and meant to be used outdoors,
it should be placed away from direct sunlight, rain or snow.
BATTERY AND CHANNEL INSTALLATION
The remote unit uses two AA-size batteries. To install them,
1. Remove the screws on the battery compartment.
2. Select the channel number on the CHANNEL slide switch.
3. Select the temperature display unit on the °C/°F slide switch.
4. Insert the batteries strictly according to the polarities shown inside.
5. Replace the battery compartment door and secure its screws.
CHANGE CHANNEL
Once a channel is assigned to a unit, you can only change it by removing
the batteries and repeating the above procedure.
LOW-BATTERY WARNING
Replace the batteries of the sensor when the low-battery indicator of the
channel represented by the sensor shows up on the main unit.
OPERATION
Once batteries are in place, the sensor will start transmitting samplings
at 40-second intervals.
The current temperature will be shown on the LCD in the selected unit
( °C/°F ) at the designated channel. The unit ( °C/°F ) shown on the main
unit is determined by the setting on the main unit.
HOW TO INSTALL THE TEMPERATURE
SENSING CABLEG
Secure the sensor to an area you want to monitor. Do not expose it to
direct sunlight.
THE RESET BUTTON
See the user’s manual of your main unit for further information.
This button is only used when the unit is operation in an unfavorable
way or malfunctioning. Use a blunt stylus to hold down the button. All
settings will return to their default values.
HOW TO USE THE TABLE STAND OR WALL
MOUNTING
This sensor comes with a wall-mount holder and a removable stand.
Use either to set up the unit.
PRECAUTIONS
This product is engineered to give you years of satisfactory service if
you handle it carefully. Here are a few precautions:
1. Do not immerse the unit in water.
2. Do not clean the unit with abrasive or corrosive materials. They may
scratch the plastic parts and corrode the electronic circuit.
3. Do not subject the unit to excessive force, shock, dust, temperature
or humidity, which may result in malfunction, shorter electronic life
span, damaged battery and distorted parts.
4. Do not tamper with the unit’s internal components. Doing so will
invalidate the warranty on the unit and may cause unnecessary dam-
age. The unit contains no user-serviceable parts.
5. Only use fresh batteries as specified in the user’s manual. Do not mix
new and old batteries as the old ones may leak.
6. Always read the user’s manual thoroughly before operating the unit.
SPECIFICATIONS
Temperature Measurement
Displayed range : -50.0°C to + 70.0°C
( -58.0°F to 158.0°F )
Proposed operating range : -20.0°C to + 60.0°C
( 4.0°F to 140.0°F )
Temperature resolution : 0.1°C ( 0.2°F )
RF Transmission Frequency : 433 MHz
No. of Remote unit : Maximum of 3
RF Transmission Range :
Maximum  30 meters (100 feet)
Temperature sensing cycle : around 40 seconds
Power : use 2 pcs UM-3 or “AA”
1.5V alkaline battery
Weight : 80.5 g (2.84ounces)
Dimension : 105 x 70 x 21mm
(4.13 x 2.76 x.83 inches)
NOTE ON COMPLIANCE
This device complies with Part 15 of the FCC Rules. Operation is sub-
ject to the following two conditions: (1) This device may not cause
harmful interference, and (2) This device must accept any interference
received, including interference that may cause undesired operations.
Warning:  Changes or modifications to this unit not expressly approved
by the party responsible for compliance could void the user’s authority
to operate the equipment.
FCC  :
NOTE:  This equipment has been tested and found to comply with the
limits for a Class  B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful  interference to
radio communications.
However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the inter-
ference by one or more of the following measures:
 orient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
- Consult the dealer of an experienced radio/TV technician for help.
Company Name: Oregon Scientific, Inc.
Address: 19861 SW 95th Place, Tualatin, Oregon 97062, USA
Telephone Number: 1-800-853-8883
CUSTOMER ASSISTANCE
Should you require assistance regarding this product and its operation,
please contact our customer care department at 800-853-8883 or via
email at [email protected].
I
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1
1
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CAUTION
- The content of this manual is subject to change without
further notice.
- Due to printing limitation, the displays shown in this
manual may differ from the actual display.
- The contents of this manual may not be reproduced
without the permission of the manufacturer.
WARRANTY
This product is warranted to be free of defects in manufacturing
for 90 days after purchase. For technical support please call
800-853-8883 ( Monday-Friday; 8am-5pm PST ).
Defective product returns should be directed to the place of retail
purchase. If this is not possible, all direct returns must include a
Return Authorization Number from Oregon Scientific, together
with proof of purchase date, your name and address, shipped
prepaid to Oregon Scientific Inc, 19861 SW 95th place Tualatin,
OREGON 97062, USA.
This warranty does not cover a product subjected to abuse,
misuse of accidental damage.
thc268 usa p65 11/07/2001 11:25 AM1

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