9557_ins_592_Room
AD592/592-10K Room Sensors
Sensor Termination and Troubleshooting
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:[email protected] • Web:www.bapihvac.com
Specifications subject to change without notice.
3/14/05
rev.
Termination
Therm Reading_______
The actual temperature reading
according to a thermometer that is
certified traceable to recognized
standards by the National Institute of
Standards and Technology (NIST).
Sensor Reading ______
The temperature reading according to
the AD592 sensor, using the output
in either mA or mV and converting
the output to a Fahrenheit tempera-
ture.
Offset_______
The difference between the
Thermometer Reading and the
Sensor Reading
To correct the Sensor Reading, simply add the offset value to the sensor reading so that it equals the thermometer
reading.
e.g.
Therm Reading 74.6
Sensor Reading 73.0
Offset +1.6
Correction: Add (+1.6) °F to the sensor for an accurate reading: 73 + 1.6 = 74.6°F
e.g.
Therm Reading 75.4
Sensor Reading 77.2
Offset -1.8
Correction: Add (-1.6) °F to the sensor for an accurate reading: 77.2 + (-1.8) = 75.4°F
All BA592 sensors will have the following information provided on a label:
BA/592-10K (3 Wire) sensors
1. All BA/592-10K (3 wire) sensors have a 10K
0.1% resistor built in.
2. Connect the Ground (terminal 3) wire first.
3. Connect the Sensor Output wire second.
4. Connect the 5 to 30 VDC wire last.
BA/592 (2 Wire) sensors
1. Install a 10K 0.1% resistor between the sensor
Output (terminal 2) and Ground (GND).
2. Make sure that the resistor is connected
between the analog input (A.I.) point and
Ground.
3. Connect the sensor Output to the A.I. point.
4. Connect the 5 to 30 VDC wire last.
Offsetting
R2
R1
SENS
1
2
3
+5 to +30 VDC
[To Power of Controller or Supply]
Sensor output (1mV/°K)
[To Analog Input of Controller]
GND(Common)
[To GND(Common) of Controller]
+5 to +30 VDC
[To Power of Controller or Supply]
Sensor output (1mV/°K)
[To Analog Input of Controller]
10K 0.1%
GND(Common)
[To GND(Common) of Controller]
R2
R1
SENS
1
2
3
BAPI recommends using twisted pair of at least 22AWG and sealant filled connectors for all wire connections. Larger
gauge wire may be required for long runs. All wiring must comply with the National Electric Code (NEC) and local codes.
Do NOT run this device’s wiring in the same conduit as AC power wiring of NEC class1 or NEC class 2, NEC class 3 or with
wiring used to supply highly inductive loads such as motors, contactors and relays.
BAPI’s tests show that fluctuating and inaccurate signal levels are possible when AC power wiring is present in the
same conduit as the signal lines. If you are experiencing any of these difficulties, please contact your BAPI representative.
BAPI does not recommend wiring the sensor with
power applied as accidental arcing may damage
the product and will void the warranty
