Remote Probes and Remote Sensors
BA/#-(PP, RPP, RPFEP) Temperature Sensor
Installation & Operations
20910_ins_Remote_Sensor_Passive
Overview
• The Remote Sensor (BA/#-PP) is a small temperature conductive plastic sensor used for single point temperature
measurement with twin plenum rated lead wires. It is ideal for mounting applications inside electronic circuit enclosures
or existing thermostats.
• The Remote Probe with Plenum-Rated Cable (BA/#-RPP) is a small Stainless Steel temperature sensor used for single
point temperature measurement with PVC plenum rated cable. It is ideal for bracket mounting for Chamber, Duct,
Thermowell or L-bracket applications.
• The Remote Probe with FEP-Jacketed Cable (BA/#-RPFEP) is a small Stainless Steel temperature sensor used for
single point temperature measurement with FEP plenum cable. It is ideal for bracket mounting in harsh environments
for Chamber, Duct, Thermowell or L-bracket applications.
• The Remote Probe with FEP-Jacketed Cable for submersion (BA/#-RPFEP2) is a small Stainless Steel temperature
sensor used for single point temperature measurement with submersion FEP plenum cable. It is ideal for bracket
mounting in wet or water submersion environments for Chamber, Duct, Immersion or L-bracket applications.
All of the above sensors are available in multiple types of thermistor’s or RTD’s as shown in the specications. The probe
is available bare without enclosure or using a termination enclosure in plastic or metal for NEMA1, NEMA 3R and NEMA 4
applications and are all plenum rated.
Identication
rev. 06/29/15
Fig 1: Remote Sensor
Fig 3: Remote Probe in a
BAPI-Box (BB) Enclosure
Fig 2: Remote Probe
Fig 4: Remote Probe in a
BAPI-Box 2 (BB2) Enclosure
Fig 5: Remote Probe in a BAPI-Box 4
(BB4) Enclosure
(A Pierceable Knockout Plug is available
from BAPI for the open port in the BB4.
Part #BA/PKP-100)
Fig 6: Remote Probe
in a Weatherproof
(WP) Enclosure
Fig 7: Remote Probe in a
Weather Tight (EU, EUO)
Enclosure
Specications subject to change without notice.
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20910_ins_Remote_Sensor_Passive
Mounting
Step 1
Step 2
Remote Probes and Remote Sensors
BA/#-(PP, RPP, RPFEP) Temperature Sensor
Installation & Operations
rev. 06/29/15
Step 1: Secure Sensor To Have Good Contact With Bare Pipe
Step 2: Insulate Over The Sensor (See Notes Below)
Notes: Insulation should be installed a minimum of 4 pipe
diameters on each side of the strap-on sensor.
Example: ½” pipe x 4 = 2”.
Insulation should be 2” on each side of the sensor wrapped all
the way around the pipe.
Fig 8: Stainless Steel Remote Probes Strapped to Pipes
Fig 9A: Break-Off Tab from a BAPI
Flexible Probe Bracket (BA/FPB)
Fig 9B: Break-Off Tab Used to Mount a
Stainless Steel Remote Probe.
Fig 10: Probe
with BAPI-Box
(BB) Enclosure
Fig 11: Remote
Probe with
BAPI-Box 2
(BB2) Enclosure
Fig 15: Remote
Sensor Installed in a
Junction Box with a
Wall Plate Cover
Fig 16: Remote
Sensor Installed
in a Pneumatic
Thermostat
Fig 12: Remote Probe
with BAPI-Box 4 (BB4)
Enclosure
Fig 13: Remote Probe with
Weather Tight (EU, EUO)
Enclosure
Specications subject to change without notice.
Fig 14: Remote Probe
with Weatherproof
(WP) Enclosure
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Remote Probes and Remote Sensors
BA/#-(PP, RPP, RPFEP) Temperature Sensor
Installation & Operations
20910_ins_Remote_Sensor_Passive
Wiring & 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 high or low voltage AC power wiring. BAPI’s tests show that inaccurate
signal levels are possible when AC power wiring is present in the same conduit as the sensor wires.
rev. 06/29/15
To Controller
Analog Input (AI)
(No Polarity)
Sensor
To Controller
Analog Input (AI)
(No Polarity)
Fig. 17: 2 Wire Lead Wire Termination for Thermistor or RTD
To 3 Wire Transmitter
Sensor
To 3 Wire Transmitter
Fig. 18: 3 Wire Lead Wire Termination for RTD
Fig. 19: Terminal Strip (-TS) Option for 2 Wire Sensors
Termination
Fig. 21: Test & Balance (-TB) Option for 2 Wire Sensors
Termination
Specications subject to change without notice.
Fig. 20: Terminal Strip (-TS) Option for 3 Wire
Sensors Termination
Fig. 22: Test & Balance (-TB) Option for 3 Wire
Sensors Termination
20910_ins_Remote_Sensor_Passive
Diagnostics
Possible Problem:
Controller reports higher or
lower than actual temperature
Specications
Remote Probes and Remote Sensors
BA/#-(PP, RPP, RPFEP) Temperature Sensor
Installation & Operations
rev. 06/29/15
Possible Solutions:
- Conrm the input is set up correctly in the front end software
- Check wiring for proper termination & continuity. (shorted or open)
- Disconnect wires and measure sensor resistance and verify the “Sensor”
output is correct.
Sensor
Passive
Thermistor NTC, 2 wire
RTD PTC, 2 or 3 wire
Thermistor Thermal resistor
Temp. Output Resistance
Accuracy (Std) ±0.36ºF, (±0.2ºC)
Accuracy (High) ±0.18ºF, (±0.1ºC), [XP] option
Stability < 0.036ºF/Year, (<0.02ºC/Year)
Heat dissipation 2.7 mW/ºC
Temp. Drift <0.02ºC per year
Probe range -40º to 221ºF (-40º to 105ºC)
RTD Resistance Temperature Device
Platinum (Pt) 100Ωor 1KΩ @0ºC, 385 curve,
Platinum (Pt) 1KΩ @0ºC, 375 curve
Pt Accuracy (Std) 0.12% @Ref, or ±0.55ºF, (±0.3ºC)
Pt Accuracy (High) 0.06% @Ref, or ±0.277ºF
(±0.15ºC), [A]option
Pt Stability ±0.25ºF, (±0.14ºC)
Pt Self Heating 0.4 ºC/mW @0ºC
Pt Probe range -40º to 221ºF, (-40 to 105ºC)
Nickel (Ni) 1000Ω @70ºF, JCI curve
Ni Probe range -40º to 221ºF (-40 to 105ºC)
Sensitivity Approximate @ 32ºF (0ºC)
Thermistor Non-linier
See bapihvac.com “Sensor Specs”
1KΩ RTD (Pt) 3.85Ω/ºC
100Ω RTD (Pt) 0.385Ω/ºC
Nickel (Ni) 2.95Ω/ºF for the JCI RTD
Lead wire 22awg stranded
Wire Insulation
-PP Etched Teon leads, plenum rated
-RPP
Flame Retardant PVC plenum cable
-RPFEP FEP jacketed plenum rated cable
-RPFEP2 FEP jacketed plenum and
submersion rated cable
Probe
-PP Heat conductive plastic cup
-RPP, RPFEP Rigid, 304 Stainless Steel,
0.25” OD
Probe Length
-PP 0.875” (22.2mm)
-RPP, RPFEP 1.75” (44.5mm)
Mounting External Probe Bracket required
Probe Vented polycarbonate shield, ½” OD
Probe Length 1.2” with ½” NPT threads
Mounting Extension tabs (ears), 3/16” holes
Enclosure Types: (Part number designator in bold)
J-Box: -JB, w/ eight ½” knock-outs
Weatherproof: -WP, w/ two ½” FNPT entries, (Bell box)
BAPI-Box: -BB, w/ four ½” NPSM & one ½” drill-out
BAPI-Box 2: -BB2, w/ three ½” NPSM & three ½” drill-outs
BAPI-Box 4:
-BB4, w/ three ½” drill-outs & one ½” open port
Weather Tight: -EU, EUO, w/ two ½” drill-outs
Enclosure Ratings: (Part number designator in bold)
J-Box: -JB, NEMA 1
Weatherproof: -WP, NEMA 3R, IP14
BAPI-Box: -BB, NEMA 4, IP66, UV Rated
BAPI-Box 2: -BB2, NEMA 4, IP66, UV Rated
BAPI-Box 4: -BB4, IP10
(IP44 with Knockout Plug in the open port)
Weather Tight: -EU, NEMA 4, IP66
Weather Tight: -EUO, NEMA 4, IP66, UV rated
Enclosure Material: (Part number designator in bold)
J-Box: -JB, Galvanized steel, UL94H-B
Weatherproof: -WP, Cast Aluminum, UV rated
BAPI-Box: -BB, Polycarbonate, UL94V-0, UV rated
BAPI-Box 2: -BB2, Polycarbonate, UL94V-0, UV rated
BAPI-Box 4: -BB4, Polycarbonate & Nylon, UL94V-0
Weather Tight: -EU, ABS Plastic, UL94V-0
Weather Tight:
-EUO, Plastic, UL94V-0, UV rated
Ambient (Enclosure): 0 to 100% RH, Non-condensing
J-Box: -JB, -40ºF to 212ºF, (-40º to 100ºC)
Weatherproof: -WP, -40ºF to 212ºF, (-40º to 100ºC)
BAPI-Boxes: -BB, BB2, BB4 -40 to 185ºF, (-40 to 85ºC)
Weather Tight: -EU, EUO, -40ºF to 185ºF, (-40º to 85ºC)
Agency: RoHS, *CE
PT= DIN43760, IEC Pub 751-1983,
JIS C1604-1989
*Passive Thermistors 20KΩ and smaller are CE
Compliant
Specications subject to change without notice.
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