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MULTI-CHANNEL IN-OUT CABLEFREE
THERMO-HYGROMETER
MODEL: BHGR618
USER’S MANUAL
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INTRODUCTION
Congratulations on your purchase of the Multi-Channel In-Out
Thermometer / Hygrometer (BHGR618) with a 433MHz cablefree thermo-hygro sensor.
Enclosed with this package is one (1) main display unit and
one (1) cable-free remote thermo-hygro sensor unit.
The main unit has an LCD that shows recordings for indoor
and outdoor temperatures, humidity, maximum and minimum
recordings. The unit supports up to three 433MHz remote
thermo-sensors or thermo-hygro sensors.
No wire installation is required between the main and remote
units. As the BHGR618 operates at 433MHz, it can be used in
the U.S. and most places in Continental Europe.
FEATURES & KEY CONFIGURATION :
MAIN UNIT
A
B
A RF SIGNAL INDICATOR
- Indicates the signal-receiving status of the unit
B Upper window
- Displays the temperature data
C Lower window
- Displays the humidity data
D [ IN / REMOTE ]
- Selects between the main-unit display and a selected
remote unit
- Activates search mode
E [ CHANNEL ] button
- Selects among different channels
- Activates remote sensor scanning mode
F [ MEM / CLEAR ] button
- Recalls the maximum or minimum temperature and
humidity readings
- Clears the maximum and minimum temperature and
humidity memory of remote sensor channels or the main
unit display
G [ RESET ]
- Returns all settings to default values and erases all
memories
°C/°F ] slide switch
H[
- Selects between degree Centigrade (°C) and Fahrenheit
(°F)
G
C
D
F
E
H
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Note that the effective range is vastly affected by the building
a
materials and where the main and remote units are
positioned. Try various set-ups for best result.
d
b
e
Though the remote units are weather resistant, they should be
placed away from direct sunlight, rain or snow.
c
f
FEATURES: REMOTE
THERMO-HYGRO SENSOR
(Model BHGR 228)
a LED indicator
Flashes when the remote unit transmits a reading
b Upper window
Displays temperature data
c Lower window
Displays humidity data
d [ RESET ]
Returns all settings to default values
°C/°F slide switch
e
Selects between Centigrade (°C) and Fahrenheit (°F)
f Channel slide switch
Designates the remote unit Channel 1, Channel 2 or
Channel 3
BATTERY AND CHANNEL
INSTALLATION: REMOTE UNIT
The remote thermo-hygro sensor unit uses two (2) UM-4 or
“AAA” size alkaline batteries.
Follow these steps to install / replace batteries:
1. Loosen the screw on the battery door.
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
therein.
5. Replace the battery door and secure its screws.
Replace the batteries when the low-battery indicator of the
particular channel lights up on the main unit. (Repeat the
steps described in section (“BEFORE YOU BEGIN”)
A A
A A
Note that once a channel is assigned to a remote unit, you
can only change it by removing the batteries or resetting
the unit.
BEFORE YOU BEGIN
To ensure proper functioning of the BHGR618 follow this setup
procedure.
For best operation:
1. Assign different channels to different remote units.
2. Insert batteries in remote units before doing so for the main
unit (see instructions for battery installation).
3. Place the main unit as close as possible 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 65 to
100 feet.
BATTERY INSTALLATION: MAIN UNIT
The main unit uses two (2) UM-3 or “AA” size alkaline batteries.
Follow these steps to install / replace batteries:
1. Remove the screw to open the battery door.
2. Insert the batteries strictly according to the polarities shown
therein.
3. Select the temperature display unit on the °C / °F slide switch.
4. Replace the battery door and fasten the screw. Replace the
batteries when the low-battery indicator of the indoor
temperature lights up (Repeat the steps described in section
"BEFORE YOU BEGIN")
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A A
A A
If not disposed of properly, batteries can be harmful.
Protect the environment by taking exhausted batteries
to authorized disposal stations.
GETTING STARTED
selected. Optionally, press and hold IN/REMOTE for 2-seconds
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to enforce a search.
MAXIMUM AND MINIMUM
TEMPERATURE AND HUMIDITY
The maximum and minimum recorded temperature and humidity
readings will automatically be stored in the memory.
To display the maximum and minimum display memory:
1. Select the channel to be checked.
2. Press [MEM/CLEAR] once to display the maximum reading
and again the minimum reading. The respective indicators,
MAX or MIN will be displayed.
To clear the memory:
• Press and hold [MEM/CLEAR] for 2-seconds.
If you press [MEM/CLEAR] now, the maximum and minimum
reading will have the same values as the current ones until
different readings are recorded.
Once batteries are placed in a given remote sensor unit, it will
start transmitting information at 40-second intervals.
Also, for approximately a 3-minute duration, the main unit will
automatically search for signals once batteries are installed. Upon
successful reception, the individual channel temperature reading
will be displayed on the upper window and the respective humidity
reading on the lower window. The main unit will automatically
update its readings at about 40-second intervals.
If no signals are received, blanks “ --- ” will be displayed and the
RF signal indicator will not show.
To force a signal search:
◊ Press and hold IN/REMOTE for 2-seconds to enforce a
3-minute search.
This is useful in synchronizing the transmission and reception of
the remote and main units.
Repeat this step whenever you find discrepancies between the
reading shown on the main unit and that on the respective remote
unit.
HOW TO CHECK REMOTE AND INDOOR
TEMPERATURES & HUMIDITIES
Display of readings from a remote sensor or the main unit is a
one-step procedure. The remote sensor channel or the main unit
display is indicated under the readings.
To display indoor temperature & humidity :
◊ Press IN / REMOTE until "in" is displayed under the
readings.
To display remote temperature & humidity :
◊ Press CHANNEL until the appropriate remote sensor channel
is displayed under the readings.
If no readings are received from one particular channel for more
than 15 minutes, blanks “ --- ” will be displayed until further
readings are successfully searched. Check the remote sensor to
ensure that it is secure and that the correct channel has been
NOTE ON °C AND °F
The unit of temperature display is selected on the °C/°F slide
switch. Select °C for Centigrade or °F for Fahrenheit.
Note that the remote temperature display on the main unit
is dominated by the selection on the
the main unit. Whatever the display units of the remote
sensors are, they will be automatically converted to the
chosen one of the main unit.
°C/°
F slide switch of
COMFORT LEVEL INDICATORS
The comfort level indicators COM, WET or DRY will tell you if
the curent environment is comfortable, too wet or too dry.
The comfort indicators will appear on the display of the main and
remote units when the following conditions are satisfied:
Indicator
displays
on the unit
COM
WET
DRY
No
Indicator
Temperature
Range
20°C to 25°C
(68°F to 77°F)
-5°C -+ 50°C
(23°F - 122°F)
-5°C -+ 50°C
(23°F - 122°F)
Less than
20°C( 68°F) or
More than
25°C (77°F)
Humidity
Range
40%RH70%RH
OVER70%RH
Below
70%RH
40%RH
to
70%RH
Shows that the
Current
Environment
Ideal range for
both relative
humidity and
temperature
Contains excess
moisture.
Contains
inadequate
moisture
No comment
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HOW TO READ
THE RF SIGNAL INDICATOR
The RF signal indicator shows the signal-receiving status of the
main unit. There are three possible forms:
The unit is in searching mode.
Transmission data are securely
registered.
No signals.
LOW BATTERY WARNING
When it is time to replace batteries, the respective low-battery
indicator will show up when the respective channel is selected.
The battery level of the main unit will be shown on the indoor
temperature when it is running low.
THE RESET BUTTON
To clear user-defined setting or if the unit is operating in an
unfavorable way or malfunctioning use a blunt stylus to hold
down the RESET button. All settings will return to the factory
set defaults.
REMOTE SENSOR SCANNING
The unit can be set to automatically scan and display readings
from the remote sensors. When the remote-sensor mode is active,
the display will show the readings from one channel for about 4second and then proceed to the next channel display.
To activate the remote-sensor scanning mode:
◊ Press and hold CHANNEL for 2-seconds.
To deactivate the remote-sensor scanning mode:
◊ Press any button.
DISCONNECTED SIGNALS
If without obvious reasons the display for a particular channel
goes blank, press[IN/REMOTE] to enforce an immediate search.
If that fails, check:
1. The remote unit of that channel is still in place.
2. The batteries of both the remote unit and main unit. Replace
as necessary.
Note that when the temperature falls below freezing point,
the batteries of outdoor units will freeze, lowering their
voltage supply and the effective range.
3. The transmission is within range and path is clear of obstacles
and interference. Shorten the distance when necessary.
TRANSMISSION COLLISION
Signals from other household devices, such as door bells, home
security systems and entry controls, may interfere with those of
this product and cause temporarily reception failure. This is
normal and does not affect the general performance of the product.
The transmission and reception of readings will resume once the
interference recedes.
TABLE STANDING OR WALL MOUNTING
Table-Standing :
Your unit comes with stand connector for connecting it to other
modular units.
STAND
CONNECTOR
Wall-mounting:
Wall mount
bracket
Connector:
Use wall-mount connector to align with other wall-mount bracket
if necessary.
Wall Mount
Connector
Wall Mount
Bracket
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CONNECTOR
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Un-install the brackets:
MAINTENANCE
When handled properly, this unit is engineered to give you years
of satisfactory service. Here are a few product care instructions:
1. Do not immerse the unit in water. If the unit comes in contact
with water, dry it immediately with a soft lint-free cloth.
2. Do not clean the unit with abrasive or corrosive materials.
Abrasive cleaning agents may scratch the plastic parts and
corrode the electronic circuit.
3. Do not subject the unit to excessive: force, shock, dust, temperature, or humidity. Such treatment may result in malfunction, a shorter electronic life span, damaged batteries, or
distorted parts.
4. Do not tamper with the unit’s internal components. Doing so
will terminate the unit’s warranty and may cause damage.
The unit contains no user-serviceable parts.
5. Only use new batteries as specified in this instruction manual.
Do not mix new and old batteries as the old batteries may
leak.
6. Read this instruction manual thoroughly before operating the
unit.
General
RF Transmission Frequency : 433 MHz
No. of Remote unit : Maximum of 3
RF Transmission Range : 100 feet
Temperature compensation : 0.1° C to ( 0.2°F)
Temperature sensing cycle : around 40 seconds
Power
Main unit : 2 pcs UM-3 or “AA” 1.5V
alkaline battery
Remote sensing unit : 2 pcs UM-4 or “AAA” 1.5V
alkaline battery
Weight
Main unit : 4.47 ounces
Remote sensing unit : 3.17 ounces
Dimensions
Main unit(H xW xD) : 6.54" x 2.28" x 1.26"
Remote sensing unit : 6.54" x 1.57" x 1.33"
NOTE ON COMPLIANCE
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 operations.
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SPECIFICATIONS
Main unit
Proposed operating range : - 5.0° C to 50.0°C
( 23.0° F to 122.0°F)
Temperature resolution : 0.1° C to ( 0.2°F)
Relative Humidity : 25% RH to 95% RH
Operating range
Remote thermo-hygro unit
Proposed operating range : -20.0° C to 60.0°C
( -4.0° F to 140.0°F)
Temperature resolution : 0.1° C to ( 0.2°F)
Relative Humidity : 25% RH to 95% RH
Operating range
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 interference by one or more of
the following measures:
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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 of the receiver which the receiver is needed.
Consult the dealer of an experienced radio/TV technician for
help.
Company Name: Oregon Scientific, Inc.
Address:19861 SW 95th Place, Tualatain, Oregon 97062, USA
Telephone Number:1-800-853-8883
Name and model number of the product: Multi-Channel in-
out Cablefree Thermo-Hygrometer BHGR618
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.
CUSTOMER ASSISTANCE
Should you require assistance regarding this product and its
operation, please contact our customer care department at 800853-8883 or via email at helpme@oscientific.com.
WARRANTY
This product is warranted to be free of manufacturing defects for
a period of 1 year from date of retail purchase. Defective product
should be directed to the place of retail purchase for exchange.
Should this not be possible, contact our customer care department
for assistance and a return material authorization. No returns
may be made without a return authorization. Please retail your
retail receipt as you may be asked to provide a copy of it for proff
of date purchased.
This warranty does not cover product subjected to abuse, misuse,
accidental damage or tampering.
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