BAPI BAPI-Stat 4 Room Humidity Sensor Catalog Page
BAPI-Stat 4 Room Humidity Sensor (BA/B4-H200 Series)
24595_ins_BAPI_4_room_humidity
Overview
The BAPI-Stat 4 Style room unit is available as a humidity only sensor or as
a combination temperature and humidity sensor with optional LCD display,
temperature setpoint adjustment and occupant override. It is available with the
entire line of BAPI temperature sensors.
Fig 1: BAPI-Stat 4
Room Humidity with
Setpoint & Override
Mounting
Mounting hardware is provided for both junction box and drywall installation
(junction box installation shown).
JUNCTION BOX
1. Pull the wire through the wall and out of the junction box, leaving about six
inches free.
2. Pull the wire through the hole in the base plate.
3. Secure the plate to the box using the #6-32 x 1/2 inch mounting screws
provided.
4. Terminate the unit according to the guidelines in the Termination section.
5. Attach cover by latching it to the top of the base, rotating down and
snapping into place.
6. 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.
Installation & Operating Instructions
rev. 12/15/17
DRYWALL MOUNTING
1. Place the base plate against the wall where you want to mount the sensor.
Fig 2: Mounting to a Junction Box
2. Using a pencil mark out the two mounting holes and the area where the
wires will come through the wall.
3. Drill two 3/16” holes in the center of each marked mounting hole. Insert a drywall anchor into each hole.
4. Drill one 1/2” hole in the middle of the marked wiring area.
5. Pull the wire through the wall and out of the 1/2” hole, leaving about six inches free.
6. Pull the wire through the hole in the base plate.
7. Secure the base to the drywall anchors using the #6 x 1 inch mounting screws provided.
8. Terminate the unit according to the guidelines in the Termination section.
9. Attach cover by latching it to the top of the base, rotating the cover down and snapping it into place. 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.
NOTE: In any wall-mount application, the wall temperature and the temperature of the air within thewall cavity can
cause erroneous readings. The mixing of room air and air from within the wall cavity can lead to condensation, erroneous
readings and premature failure of the sensor. To prevent these conditions, seal the conduit leading to the junction box or
ll the box with insulation.
Specications subject to change without notice.
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BAPI-Stat 4 Room Humidity Sensor (BA/B4-H200 Series)
Installation & Operating Instructions
24595_ins_BAPI_4_room_humidity
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 uctuating and inaccurate signal levels are possible when AC power
wiring is present in the same conduit as the signal lines.
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.
4 to 20 mA Output Unit Termination
Terminal Function
OVR1 & OVR2
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
VOUT
................. Not Used
...................... Power, see specications section for details
V+
................... 4 to 20 mA Humidity Signal [to analog input of
GND
... Override Output – Dry Contact Switch
occupancy, and is activated by logic LOW or power
supply ground at this terminal.
controller]
rev. 12/15/17
0 to 5 VDC, 0 to 10 VDC & 2 to 10 VDC Output Unit Termination
Terminal Function
OVR1 & OVR2
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=-)
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.
If unit is a common (-CG) model, see Note below.
EXT-OVR ........... Allows remote control of the LCD indicator for
VOUT
................. Voltage Humidity Signal [to analog input of controller]
...................... Power, see specications section for details
V+
................... To controller power supply ground
GND
... Override Output – Dry Contact Switch
occupancy, and is activated by logic LOW or power
supply ground at this terminal.
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