BAPI BAPI-Stat 3 Room CO2 Sensor Catalog Page
CO2 Room Sensor in the BAPI-Stat 3 Enclosure
with Common Ground Conguration
26141_ins_room_CO2
Identication and Overview
The BAPI CO2 Sensor is an accurate and reliable way of incorporating demand controlled ventilation into a building’s HVAC strategy. It
measures the CO
output of 0 to 5 or 0 to 10 VDC.
The non-dispersive infrared (NDIR) technology has been optimized
to reduce drift. The sensor is also altitude compensated for longterm accuracy and stability. Changing air pressure, due to altitude
or weather patterns, can change the output of most CO
as much as 17%. The BAPI unit has a built-in barometric sensor that
continuously compensates the output for accurate readings despite
inclement weather or the altitude of the installation.
The unit can be ordered as CO
sensing, temperature setpoint, occupant override and humidity sensing. The large format display is easy to read and alternates between
the measured values (CO
also eld adjustable between °F or °C and all the displayed values
may be turned on or off by an HVAC technician.
Optional indication of the CO
able as a three-color LED on the unit or as an arrow on the display.
in a range of 0 to 2,000 ppm with a eld selectable
2
sensors by
2
alone, or with optional temperature
2
, Temperature or Humidity). The display is
2
level as “Good, Fair or Poor” is avail-
2
Installation and Operating Instructions
rev. 04/27/18
Fig. 1: BAPI-Stat 3 Room CO2 Sensor
Specications
Power for 0 to 5 VDC Outputs:
9 to 35 VDC @ 240mA (9 to 24 VDC recommended)
Power for 0 to 10 VDC Outputs:
15 to 35 VDC @ 240mA (15 to 24 VDC recommended)
Sensing Elements:
– Single Beam Non-Dispersive Infrared (NDIR)
CO
2
or Dual Channel NDIR for “24/7” Model
Humidity – Capacitive Polymer ±2% RH Accuracy
Temperature Sensor:
Thermistor, RTD or Semiconductor
Operating Environment:
32 to 122°F (0 to 50°C)
0 to 95%, RH non-condensing
Material ABS Plastic, Material Rated UL94V-O
Detection Range: 0 – 2000 ppm
CO
2
Start-Up Time: <2 Minutes
Response Time:
<2 Minutes for 90% step change typical (after start-up)
Mounting: 2”x4” J-Box or drywall – screws provided
Override Output:
Contact
Sensor
Setpoint
....SPST, 24V AC/DC, 0.5A max
.....Shorts Out direct temperature sensor
...Contact in parallel, resistive setpoint only
LCD Display:
Main Display: 0.76” 4-digit Numeric Values
Minor Display: 0.34” 3-digit Alpha-Numeric
(PPM, %RH, °F, °C)
Occupancy BAPI Man Icon: (Blk=Occupied)
Measurement Offsets: (Field Adjustable)
±5° (F or C) in 0.1° increments
±5% RH in 0.1% RH increments
Accuracy:
CO
2
(Single Channel Automatic Background Calibration model)
400 to 1,250 ppm: ±30ppm or 3% of reading,
whichever is greater
1,250 to 2,000 ppm: ±5% of reading + 30ppm
Accuracy:
CO
2
(“24/7” Dual Channel Model)
75ppm or 10% of reading (whichever is greater)
CO
Drift Stability (Dual Channel DCD “24/7” Units):
2
<5% of full scale over life of product.
LED CO
Level Indicator:
2
Good, Green < 1,000 PPM
Fair, Orange = 1,000 to 1,500 PPM
Poor, Red > 1,500 PPM
Certications: RoHS
Warranty Period: 5 Years from manufacture date
Specications subject to change without notice.
1 of 6
CO2 Room Sensor in the BAPI-Stat 3 Enclosure
with Common Ground Conguration
Installation and Operating Instructions
26141_ins_room_CO2
Mounting
Mounting hardware is provided for both junction box and drywall installation (junction box installation shown).
Note: Screw the 1/26” Allen lock-down screw into the base to open the
case, less chance of losing it this way. Back out the lock-down screw
to secure the cover.
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 5/8 inch mounting
screws provided.
4. Terminate the unit according to the guidelines in the Termination
section. (page 3)
5. Mold the foam on the unit’s base to the wire bundle to prevent
drafts. (see note below)
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 screw using a
1/16” Allen wrench until it is ush with the bottom of the cover.
Fig. 2: Mounting to a Junction Box
Drywall Mounting
1. Place the base plate against the wall where you want to mount the sensor.
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, DO NOT punch the holes or the drywall anchors will not hold. 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. (page 3)
9. Mold the foam on the unit’s base to the wire bundle to prevent drafts. (see note below)
10. Attach cover by latching it to the top of the base, rotating the cover down and snapping it into place.
11. Secure the cover by backing out the lock-down screw using a 1/16” Allen wrench until it is ush with the bottom
of the cover.
rev. 04/27/18
NOTE: In any wall-mount application, the wall temperature and the temperature of the air within the wall cavity can
cause erroneous readings. The mixing of room air and air from within the wall cavity can lead to condensation, erroneous readings and sensor failure. To prevent these conditions, BAPI recommends sealing the conduit leading to
the junction box, lling the junction box with berglass insulation or sealing the wall cavity.
Specications subject to change without notice.
2 of 6
Loading...