Installation and Operating Instructions
Delta Style Room Humidity Transmitter with Optional Temp. Sensor
BA/#-Hxxx-R
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
27417_ins_Delta_RH
2 of 4
rev. 04/15/14
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.
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. BAPI does not recommend wiring the sensor with power applied as accidental arcing may damage the
product and will void the warranty.
Fig. 4:
Circuit Board (shown with
optional temperature sensor)
4 to 20mA Humidity Output Termination
TERMINAL LEGEND
FUNCTION
GND .................................... 4 to 20mA Loop Humidity Signal (To analog input of controller)
V+ ....................................... Main DC Power (See power requirements in specifications)
V OUT ................................. Not Used (No termination)
TEMP +............................... Optional Passive Temp. Sensor (No polarity for RTDs or Thermistors)
(“+” terminal is the 5 to 30 VDC bias voltage for Semiconductors)
TEMP - ............................... Optional Passive Temp. Sensor (No polarity for RTDs or Thermistors)
(“-” terminal is the temperature signal for Semiconductors)
0 to 5VDC or 0 to 10VDC Humidity Output Termination
TERMINAL LEGEND
FUNCTION
GND .................................... Ground for Power and Reference for the Humidity Voltage signal
V+ ....................................... Main Power (See power requirements in specifications)
V OUT ................................. Humidity Voltage Signal Output (0 to 5VDC or 0 to 10 VDC)
TEMP +............................... Optional Passive Temp. Sensor (No polarity for RTDs or Thermistors)
(“+” terminal is the 5 to 30 VDC bias voltage for Semiconductors)
TEMP - ............................... Optional Passive Temp. Sensor (No polarity for RTDs or Thermistors)
(“-” terminal is the temperature signal for Semiconductors)
Notes:
1. Transmitter is common ground (CG) for voltage outputs
2. “TEMP +” and “TEMP -” terminals are isolated to only the temperature sensor.
Termination
Optional Communication Jack Wiring
C35 Comm.
Jack on
Delta Style
Unit Base
(Front View)
Fig. 5:
C35 Comm Jack
(3.5mm plug shown for clarity)
C35 Comm.
Jack on
Delta Style
Unit Base
(Back View)
Norm: The sensor will operate normally
High: Sets the sensor value to the HIGH
temperature (see table at right)
Low: Sets the sensor value to the LOW
temperature (see table at right)
Sensor Type
Low Temp (40° F)
High Temp (105° F)
Resistance Value
Resistance Value
1000Ω RTD
1.02KΩ (41.2°F)
1.15KΩ (101.5°F)
3000Ω Thermistor
7.87KΩ (39.5°F)
1.5KΩ (106.8°F)
10K-2 Thermistor
30.1KΩ (39.2°F)
4.75KΩ (105.8°F)
10K-3 Thermistor
26.7KΩ (35.9°F)
5.11KΩ (108.4°F)
10K-3(11K) Thermistor
7.32KΩ (43.7°F)
3.65KΩ (105.2°F)
Optional Test and Balance Switch (SW1) Operation
T&B Switch (SW1) Position and Sensor Output
BAPI does not recommend wiring the sensor with power applied as accidental arcing may damage the product
and will void the warranty.
