24595_ins_BAPI_4_room_humidity
Installation & Operating Instructions
BAPI-Stat 4 Room Humidity Sensor (BA/
B4
-H200 Series)
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
rev. 12/15/17
Terminations
BAPI recommends using twisted pair of at least 22 AWG. 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 class 1, 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.
Fig 3:
Circuit Board
Notes:
On Common Ground (-CG) Models:
On the common (-CG) models, terminals “OVR2”, “SEN2”, and “SET2” are connected
together internally but they are not connected to Ground “GND”. If you intend to use “GND” as common, then a jumper must
be added from terminal “GND” to “SEN2”. This is only allowed on Voltage Output models. Do not install this jumper on 4 to 20
mA Output models.
On
Differential Ground (-DF) Models:
All terminals are independent.
4 to 20 mA Output Unit Termination
Terminal
Function
OVR1 & OVR2... Override Output – Dry Contact Switch
If unit is a common (-CG) model, see Note below.
SET1 & SET2 .... Setpoint Output
If unit is a common (-CG) model, see Note below.
SEN1 & SEN2 ... Sensor Output – Resistive Output.
(Semiconductor: SEN1=+, SEN2=-)
If unit is a common (-CG) model, see Note below.
EXT-OVR ........... Allows remote control of the LCD indicator for
occupancy, and is activated by logic LOW or power
supply ground at this terminal.
VOUT ................. Not Used
V+ ...................... Power, see specifications section for details
GND ................... 4 to 20 mA Humidity Signal [to analog input of
controller]
0 to 5 VDC, 0 to 10 VDC & 2 to 10 VDC Output Unit Termination
Terminal
Function
OVR1 & OVR2... Override Output – Dry Contact Switch
If unit is a common (-CG) model, see Note below.
SET1 & SET2 .... Setpoint output.
If unit is a common (-CG) model, see Note below.
SEN1 & SEN2 ... Sensor Output – Resistive Output.
(Semiconductor: SEN1=+, SEN2=-)
If unit is a common (-CG) model, see Note below.
EXT-OVR ........... Allows remote control of the LCD indicator for
occupancy, and is activated by logic LOW or power
supply ground at this terminal.
VOUT ................. Voltage Humidity Signal [to analog input of controller]
V+ ...................... Power, see specifications section for details
GND ................... To controller power supply ground
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BAPI recommends wiring the product with power disconnected. Proper supply voltage, polarity, and wiring
connections are important to a successful installation. Not observing these recommendations may damage the
product and will void the warranty.
