THE RESET BUTTON
See the user manual of your main unit for further information.
This button is only used when the unit is operating 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
MOUNT
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
damage. The unit contains no user-serviceable parts.
5. Only use fresh batteries as specified in the user manual. Do not
mix new and old batteries as the old ones may leak.
6. Always read the user manual thoroughly before operating the unit.
SPECIFICATIONS
Temperature Measurement
Displayed range
: -58.0
°
F to 158.0
°
F
(-50.0
°
C to +70.0
°
C)
Proposed operating range
: -22
°
F to 140
°
F
(-30
°
C to 60
°
C)
Temperature resolution
: 0.2
°
F (0.1
°
C)
RF Transmission Frequency
: 433 MHz
No. of Remote unit
: Maximum of 3
RF Transmission Range
: Maximum 98 feet (30 meters)
Temperature sensing cycle
: around 30 seconds
Power
: use 2 pcs UM-3 or “AA”
1.5V alkaline batteries
Weight
: 3.5 ounces (110 grams)
Dimension
: 4 x 2.7 x 0.8 inches (103 x 68 x
21 mm)
CAUTION
—
The content of this manual is subject to change without
further notice.
—
Due to printing limitations, the displays shown in this
manual may differ from the actual display.
—
The manufacturer and its suppliers hold no
responsibility to you or any other person for any damage
expenses, lost profits, or any other claim as a result of
using this product.
—
The contents of this manual may not be reproduced
without the permission of the manufacturer.
ENGLISH
USER MANUAL
INTRODUCTION
Congratulations on purchasing the THC-138 Remote Thermo Sensor.
The Remote Thermo Sensor is used with the 433MHz Multi-Channel
In-Out Thermometer (Model: EMR812, EMR899, RMR112 or
BAR888) to monitor temperature changes of remote or outdoor
sites. Operation is easy and no wire installation is required.
MAIN FEATURES:
LCD
Displays the current temperature monitored by the remote unit
and indicates the selected channel
LED INDICATOR
Flashes when the remote unit transmits a reading
TEMPERATURE SENSOR PROBE
On 10 feet (3 meter) cable
°
C/
°
F SLIDE SWITCH
Selects between Centigrade (
°
C) and Fahrenheit (
°
F)
CHANNEL SLIDE SWITCH
Designates the remote unit Channel 1, Channel 2 or Channel 3
RESET BUTTON
Returns all settings to default values
BATTERY COMPARTMENT
Accommodates two AA-size batteries
BATTERY DOOR
WALL-MOUNT HOLDER
Supports the remote unit in wall-mounting
REMOVABLE TABLE STAND
For standing the remote unit on a flat surface
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 model EMR899, EMR-899, RMR-112 or BAR-888)
3. Place the main unit as close as possible next to the remote unit, and
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 66 to 98 feet (20 to 30
meters).
Note that the effective range is vastly affected by the building materials
and where the main and remote units are positioned. Try various set-
ups 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.
Standard Alkaline batteries contain signifcant amounts of water. Because
of this they will freeze in low temperatures of approximately 10
°
F.
Disposable Lithium batteries have a much lower threshold for temperature
with an estimated freezing range of below -40
°
F. The Liquid Crystal
Display in outdoor thermometers will remain operational to -20
°
F with
adequate power.
Wireless ranges can be impacted by a variety of factors such as extremely
cold temperatures. Extreme cold may temporarily reduce the effective
range between the sensor and the base station. If the unit's performance
fails due to low temperature, the unit will resume proper functioning as the
temperature rises to within the normal temperature range (i.e no permanent
damage will occur to the unit due to low temperatures).
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 30-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 CABLE
Secure the sensor to an area you want to monitor. Do not expose it
to direct sunlight.
MULTI-CHANNEL
CABLE FREE
REMOTE THERMO SENSOR
MODEL: THC138
© 2004 Oregon Scientific. All Rights Reserved.
086-002026-xxx
ABOUT OREGON SCIENTIFIC
Visit our website (www.oregonscientific.com) to learn more about
Oregon Scientific products such as digital cameras; MP3 players;
children’s electronic learning products and games; projection clocks;
health and fitness gear; weather stations; and digital and conference
phones. The website also includes contact information for our
customer care department in case you need to reach us, as well as
frequently asked questions and customer downloads.
We hope you will find all the information you need on our website,
however if you’d like to contact the Oregon Scientific Customer Care
department directly, please visit:
www2.oregonscientific.com/service/support
OR
Call 949-608-2848 in the US.
For international enquiries, please visit:
http://www2.oregonscientific.com/about/international/default.asp
FCC STATEMENT
This device complies with Part 15 of the FCC Rules. Operation is
subject 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
operation.
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.
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 interference by one or more of the following measures:
•
Reorient 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 or an experienced radio / TV technician for
help.
DECLARATION OF CONFORMITY
The following information is not to be used as contact for support or
sales. Please call our customer service number (listed on our website
at www.oregonscientific.com), or on the warranty card for this product)
for all inquiries instead.
We
Name:
Oregon Scientific, Inc.
Address:
19861 SW 95th Place, Tualatin, Oregon 97062
USA
Telephone No.: 1-800-853-8883
Fax No.:
1-503-684-3332
declare that the product
Product No.:
THC138
Product Name: Multi-channel Cable Free Remote Thermo Sensor
Manufacturer:
IDT Technology Limited
Address:
Block C, 9/F, Kaiser Estate,
Phase 1,41 Man Yue St.,
Hung Hom, Kowloon,
Hong Kong
is in conformity with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: 1) This device may not cause harmful
interference. 2) This device must accept any interference received,
including interference that may cause undesired operation.
