Wireless Room Temperature and Humidity Transmitter
(Units without Temperature Setpoint or Override)
Installation and Operating Instructions
17616_ins_wireless_temp_hum_xmtr
Wireless Temperature and Humidity Transmitter Overview and Indentication
The BAPI Wireless Temperature and Humidity Transmitter measures the
room temperature and Relative Humidity and transmits the data at 418MHz
or 433MHz RF to a receiver. The transmitter is mounted in a BAPI-Stat 2 style
enclosure and has maximum in-building range of open-air range of 100 feet.
The transmit rate is approximately once every 20 seconds with an estimated
battery life of 5 to 8 years using two high-capacity 3.6V lithium batteries. Each
transmitter has a unique address with built-in error detection. Each variable
sent by the transmitter is picked up by the receiver and converted by a separate BAPI Analog Output Module to a voltage, current or resistance signal
which is sent to the controller.
Fig. 1:
Wireless Room
Temperature
Transmitter
Complete Wireless System Overview
418 MHz System:
The Transmitter measures the temperature or
temp/humidity and transmits the data at 418MHz to
the 418 MHz Receiver up to 100 feet away. The optional temperature setpoint and override status are
also transmitted at 418 MHz to the receiver. The
transmit rate is about once every 20 seconds with
an estimated battery life of 5 to 8 years.
The information sent by the Transmitter is picked
up by the 418 MHz Receiver and passed along
to the Analog Output Modules. Each transmitted
variable (temperature, humidity, setpoint, etc.) is
converted by a separate output module into an
analog resistance, voltage, current or relay contact
which is hard wired to the analog inputs of the BAS
Transmitter
Transmits the
Temperature,
Humidity,
Setpoint and
Override Info
418 MHz
Up to 100 Feet
Fig. 2:
418 MHz
Wireless
System
Receives the Temperature, Humidity, Setpoint
and Override Info from the Transmitter and
passes it on to the Analog Output Modules
Analog Output Modules
Converts the Temperature,
Humidity, Setpoint and
Override Info into an analog
resistance, voltage, current
or relay for the BAS controller
418 MHz Receiver
controller.
900 MHz System:
The Transmitter measures the room temperature or temp/humidity and
transmits the data at
418MHz to a Repeater
up to 100 feet away. The
optional temperature setpoint and override status
are also transmitted at
418 MHz to the Repeater.
The transmit rate is approximately once every
20 seconds with an
estimated battery life of 5
to 8 years.
Transmitter
Transmits the
Temperature,
Humidity,
Setpoint and
Override Info
418 MHz
Up to 100
Feet
Repeater
Receives the 418 MHz
Info from the Transmitter
and Re-Transmits it at 900
MHz up to 1,000 feet
900 MHz
Up to 1,000
Feet
900 MHz Receiver
Receives the Temperature, Humidity, Setpoint
and Override Info from the Repeater and
passes it on to the Analog Output Modules
Fig. 3: 900 MHz Wireless System
Analog Output Modules
Converts the Temperature,
Humidity, Setpoint and
Override Info into an analog
resistance, voltage, current
or relay for the BAS controller
The 418 MHz information sent by the Transmitter is picked up by the Repeater and then Re-Transmitted at 900 MHz to a 900 MHz Receiver up to
1,000 feet away. The 900 MHz receiver picks up the information from the repeater and then passes it along to the Analog Output
Modules. Each transmitted variable (temperature, humidity, etc.) is converted by a separate output module into an analog resistance, voltage, current or relay contact which is hard wired to the analog inputs of the BAS controller.
rev. 04/21/15
Customer Provided Tools and Materials
#2 Philips Screwdriver, 1/8” Screwdriver with 1/16” Allen wrench (BA/116W), Drill with 3/16” (4.7mm) bit
Specications subject to change without notice.
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Wireless Room Temperature and Humidity Transmitter
(Units without Temperature Setpoint or Override)
Installation and Operating Instructions
17616_ins_wireless_temp_hum_xmtr
Analog Output Module Training
The installation process requires that each transmitter is trained to its associated
output modules so that they communicate with each other. Pushing buttons in a
dened sequence on the units will bind them together.
The training process is easiest on a test bench with the units within arm’s reach
of each other. Training can be done in the eld but requires two people and a
set of walkie talkies or cell phones. Be sure to place an identication mark on
the transmitter and associated output modules after they have been trained so
that they can be matched together at the job site.
The temperature and humidity variables each require a separate output module.
Perform the training sequence for each output module. Any transmitted variable
can be trained to more than one output module. If a Repeater is used in the
system, be sure it is powered and within reception range of the transmitter and
the 900 MHz Receiver to train the output modules.
TEMPERATURE OR HUMIDITY VARIABLE TRAINING
1. To train an output module to a temperature or humidity variable, select the
Resistance, Voltage or Current Output Module calibrated to the proper
temperature or humidity range and connect it to the wireless receiver. Note:
Multiple output modules can be trained to the same variable if desired.
2. Apply power to the receiver which will supply power to the connected output
modules. The power LED on the receiver will light and remain lit. (Current Output Modules
must have loop power supplied to the module itself before they can be trained.)
3. Remove the cover of the room transmitter and remove the battery tabs or install the batteries,
observing polarity as shown in Fig 3. Or open the cover of the BAPI-Box on non-room
transmitters and remove the battery tabs or install the batteries as shown in Fig 4. The “transmit
LED” will ash about once every 20 seconds, indicating a transmission. (The ash is very quick.)
4. Press and hold down the “Service Button” on the top of the output module (Fig 5) that you wish
to train. Then, press and release the “training button” (see Fig 3 & Fig 4) on the transmitter.
When the output module receives the “training transmission” from the transmitter, the output
module’s red LED will light steady. Release the “Service Button” on the output module and the
red LED will go out. The transmitter and output module are now trained to each other. During
normal operation, the output module’s LED will ash about once every 20 seconds indicating
data reception from the transmitter trained to it.
Note: Combination transmitters send both the temperature and humidity information when the “Training Button” is pressed.
However, each Analog Output Module is congured at the time of order as a temperature, humidity, setpoint or override
module and will only recognize the relevant data and will ignore the rest.
5.
Mount the transmitter at the desired location, removing the batteries if needed. (The units will remain trained to one another through
power failures and battery replacement.)
Battery polarity is
important or damage
to the unit may occur
Fig. 4:
Room Transmitter battery
installation and training
rev. 04/21/15
Training
Button
Transmit
LED
Output
Module
Service
Button
Fig. 5:
Output
Module
Mounting of the Room Transmitter
Provided
Drywall
Anchors
Provided #6 x 1” Screws
(80mm)
Fig. 6: Drywall Mounting
Note: The transmitter should have been trained to the output module at
this point of the installation.
Drywall Mounting
1. Place the base plate against the wall where you want to mount the sensor.
Typically 5 feet above the oor.
3.25”
Specications subject to change without notice.
2. Using a pencil, mark out the two mounting holes.
3. Drill two 3/16” (4.7 mm) holes in the center of each marked mounting hole.
Insert a drywall anchor into each hole.
4. Secure the base to the drywall anchors using the #6 x 1 inch mounting
screws provided.
5. Install provided batteries or pull battery tabs and follow polarity as shown
in gure 3 or damage may occur. The unit will work on just one battery
however the battery life will be cut in half.
6. Attach cover by latching it to the top of the base, rotating the cover down
and snapping it into place.
7. Secure the cover by backing out the lock-down screws using a 1/16” Allen
wrench until they are ush with the bottom of the cover.
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