BAPI Non-Room Thermistors Catalog Page

Non-Room Thermistors and RTDs

2.2KΩ Brown/White 1KΩ Orange/Orange

3KΩ Yellow/Black

3.25KΩ Brown/Green 1KΩ Green/Green

3.3KΩ Yellow/Brown

10K-3Ω Yellow/Red

10K-3(11K)Ω Yellow/Blue 100Ω Red/Red/Black*

20KΩ White/White 1KΩ Orange/Orange/Black*

47KΩ Yellow/Orange

Table 3: Temperature Sensor Lead Wire Colors

Additional sensors are available so your sensor may not be listed on this table.

Installation & Operations

9502_ins_therm_rtd_nrm

Termination

BAPI recommends using twisted pair of at least 22AWG and sealant lled 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 uctuating 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 difculties, please contact your BAPI
representative.

rev. 10/12/15

BAPI does not
recommend wiring the
sensor with power

Thermistors Platinum RTDs - 2 Wire

1.8KΩ Orange/Red 100Ω Red/Red

applied as accidental arcing
may damage the product and
will void the warranty.

10K-2Ω Yellow/Yellow 2KΩ Brown/Blue

50KΩ White/Blue

100KΩ Yellow/White

Junction Box (JB) and No Box (NB) Mounting Indoors

The junction box mount is intended for indoor mounting in
equipment rooms, plenums or occupied spaces. The gures
below show a typical junction box mounting in an air duct.
BAPI recommends using #8 sheet metal screws that need 1/8­inch pilot holes to attach the sensor to the duct.

After placing the sensing element in the duct, secure the
mounting ange to the duct; center the plastic tting holding
the probe in the mounting hole. Make sure that the foam seals
the hole; do not over tighten the screws. No box units use the
same mounting holes as Junction Box units.

Nickel RTD

Silicon RTD

Platinum RTDs - 3 Wire

*In the 3-Wire RTD sensors listed above,

the two wires of similar color are

connected together.

Fig. 1: Junction Box (JB) or No Box (NB)

mounting holes

Fig. 3: No Box (NB)

Probe

Specications subject to change without notice.

Fig. 2: Junction

Box (JB) duct

installation

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Non-Room Thermistors and RTDs

Installation & Operations

9502_ins_therm_rtd_nrm

BAPI-Box (BB) Mounting Indoors

The BAPI-Box Enclosure is watertight and carries an IP66 rating which is similar to a NEMA 4X rating when the
included 6-32 screws are fastened on either side of the latch. The BAPI-Box Enclosure is made of high impact, UV
resistant polycarbonate and features a gasketed cover for a waterproof seal, a hinged cover to simplify installation,
horizontal or vertical mounting with multiple knockouts and a window in the cover for an LCD display.
Enclosure is available for the full line of BAPI duct, immersion, outside air and pressure sensors.

Mount the unit to its mounting surface with four #10 scres through the holes in the mounting feet. #10 sheet metal
screws require 5/32” (4mm) pilot holes. For concrete or cinder block, drill four 5/32” (4mm) holes, 1-3/4 inch (45mm)
deep. Make sure that all screws are started in their holes before tightening evenly. If unit has a foam gasket, only
squeeze to about 1/2 of its original thickness.

Be sure to seal conduit connector threads and holes in mounting surface to maintain the integrity of the box.

Fig 4: BAPI-Box (BB)

enclosure mounting
holes, rotate 90° for
horizontal mounting

The BAPI-Box

rev. 10/12/15

-

Fig. 5: BAPI-Box (BB) duct installation

Weatherproof (WP) Enclosure Mounting Indoors

The weatherproof box is intended for outdoor or equipment room mounting. Use the mounting tabs provided to
mount the weatherproof box as shown in the gure below. DO NOT drill screw holes through the back wall of the
box, this destroys the integrity of the box and may void the warranty.

The gures below show a typical weatherproof box mounting in an air duct. BAPI recommends using #8 sheet
metal screws that need 1/8-inch pilot holes to attach the sensor to the duct. After placing the sensing element in

the duct, secure the mounting tabs to the duct; center the plastic tting holding the probe in the mounting hole. Be
sure that the foam seals the hole; do not over tighten the screws. Place the foam gasket between the cover and the

box before securing the cover in place with the screws provided. T
threads of the box plugs or conduit connectors with caulk before screwing them into the waterproof box.

o keep water out of the box, be sure to coat the

Fig. 6:

Weatherproof (WP)

enclosure mounting tabs

Fig. 7:

Weatherproof (WP)

enclosure mounting holes

Specications subject to change without notice.

Fig. 8:

Weatherproof (WP) enclosure

duct installation

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