BAPI Rigid Averaging Duct Temperature Sensors Catalog Page

Rigid Averaging Duct Temperature Sensors (BA/# -RA)
20904_ins_DuctAvgRigid_Passive_Passive
Overview and Identication
The Rigid Averaging Unit is for duct mounting and temperature measurement of stratied air across the duct to give the average temperature along the length of the sensor.
The rigid Stainless Steel Probe is made in different lengths for a custom duct t. The units is available in multiple thermistor or RTD types as shown in the specications. Enclosure mounting styles come in plastic or metal for both NEMA 1 and NEMA 4 applications and
are all plenum rated.
Installation & Operations
rev. 06/29/15
Fig 1: Unit with No Box (NB)
Fig 2: Unit with J-Box (Standard)
Fig 4: Unit with BAPI-Box (BB) Enclosure
Fig 3: Unit with Weatherproof (WP) Enclosure
Fig 5: Unit with BAPI-Box 2 (BB2) Enclosure
Fig 6: Unit with Weather Tight (EU) Enclosure
Specications subject to change without notice.
Fig 7: Unit with BAPI-Box 4 (BB4) Enclosure
(A Pierceable Knockout Plug is available from BAPI
for the open port in the BB4. Part #BA/PKP-100)
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Rigid Averaging Duct Temperature Sensors (BA/# -RA)
Installation & Operations
20904_ins_DuctAvgRigid_Passive_Passive
Mounting
1. Place the sensor in the middle of the duct away from temperature stratied air, coils or humidiers to achieve the best temperature reading.
2. Drill the probe hole as depicted below for the enclosure being used. Insert the probe into the duct.
3. Mount the enclosure to the duct using BAPI recommeded #8 screws through a minimum of two opposing mounting
tabs provided. Weatherproof (WP) enclosures will require assembly of the mounting tabs on opposite corners. A 1/8 inch pilot screw hole in the duct makes mounting easier through the mounting tabs. Use the enclosure tabs to mark the pilot hole locations.
4. Snug up the sensors so that the foam backing is depressed to prevent air leakage but do not over tighten or strip the screw threads.
rev. 06/29/15
Fig 8: Junction Box or No Box
(NB) Mounting Holes
Fig 11: Weather Tight (EU or
EUO) Enclosure Mounting Holes
Fig 9: BAPI-Box 2 (BB2)
Enclosure Mounting Holes
Fig 12: Weatherproof (WP)
Enclosure Mounting Holes
Fig 10: BAPI-Box (BB) Enclosure Mounting
Holes, Rotate 90° for Horizontal Mounting
Fig 13: BAPI-Box 4 (BB4) Enclosure
Mounting Holes
Specications subject to change without notice.
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Rigid Averaging Duct Temperature Sensors (BA/# -RA)
Installation & Operations
20904_ins_DuctAvgRigid_Passive_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.
To Controller Analog Input (AI) (No Polarity)
Thermistor
or RTD Sensor
To Controller Analog Input (AI) (No Polarity)
rev. 06/29/15
Fig. 14: 2 Wire Lead Wire Termination for Thermistor or RTD
Fig. 16: Terminal Strip (-TS) Option for 2 Wire Sensors
Termination
Fig. 15: 3 Wire Lead Wire Termination for RTD
Fig. 17: Terminal Strip (-TS) Option for 3 Wire
Sensors Termination
Fig. 18: Test & Balance (-TB) Option for 2 Wire Sensors
Termination
Specications subject to change without notice.
Fig. 19: Test & Balance (-TB) Option for 3 Wire
Sensors Termination
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20904_ins_DuctAvgRigid_Passive_Passive
Diagnostics
Rigid Averaging Duct Temperature Sensors (BA/# -RA)
Installation & Operations
rev. 06/29/15
Problems:
Controller reports higher or lower than actual temperature
Possible Solutions:
- Conrm 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.
Specications
Sensor 4 sensors per probe Passive Thermistor 2 wire Passive RTD, 2 or 3 wire
Thermistor Thermal resistor (NTC) Temp. Output Resistance per order Accuracy (Sstd) ±0.36ºF, (±0.2ºC) Accuracy (Hi) ±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 Temp Device (PTC) Platinum (Pt) 100 and 1K @0ºC, 385 curve, Platinum (Pt) 1K @0ºC, 375 curve Pt Accuracy (Std) 0.12% @Ref, or ±0.55ºF, (±0.3ºC) Pt Accuracy (Hi) 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) 1000 @70ºF, JCI curve Ni Probe range -40º to 221ºF (-40 to 105ºC)
Sensitivity Approximate Thermistor Non-linear
Go to bapihvac.com “Sensor Specs”
RTD (Pt) 3.85/ºC for 1K RTD
0.385/ºC for 100 RTD Nickel (Ni) 2.95/ºF for the JCI RTD
Lead Wire 22awg stranded Insulation Etched Teon, Plenum rated Probe Rigid Stainless Steel, 0.25” OD Probe Length 12”, 2’, 4’ per order Duct gasket 1/8” foam (impervious to mold)
176ºF Max
Mounting Extension tabs (ears), 3/16” holes
Enclosure Types
J-Box -JB, w/ eight ½” knockouts No Box -NB, intended for open wiring Weatherproof -WP, w/ two ½” FNPT entries, (Bell box) BAPI-Box -BB, w/ four ½” NPSM & one ½” drill-out
BAPI-Box 2 BAPI-Box 4:
-BB2, w/ three ½” NPSM & three ½” drill-outs
-BB4, with three ½” drill-outs & one ½” open port
Weather Tight -EU, -EUO, w/ two ½” knockouts
Enclosure Ratings
J-Box -JB, NEMA 1 No Box -NB, No rating Weatherproof -WP, NEMA 3R, IP14 BAPI-Box -BB, NEMA 4X, IP66 BAPI-Box 2 -BB2, NEMA 4X, IP66
BAPI-Box 4: -BB4, IP10
(IP44 with Knockout Plug in open port)
Weather Tight -EU, IP44 Weather Tight -EUO, NEMA 4X, IP66, UV rated
Enclosure Materials
J-Box -JB, Galvanized steel, UL94H-B No Box -NB, Nylon 66, UL94H-B Weather Proof -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, ABS Plastic, UL94V-0, UV rated
Ambient (Encl.) 0 to 100% RH, Non-condensing All BAPI-Boxes -BB, BB2, BB4, -40 to 185ºF, (-40 to 85ºC) Weather Tight -EUO, EU, -40 to 185ºF, (-40 to 85ºC) J-Box & No Box -JB, NB, -40 to 212ºF, (-40 to 100ºC) Weatherproof -WP, -40ºF to 212ºF, (-40º to 100ºC)
Agency RoHS, *CE
PT= DIN43760, IEC Pub 751-1983,
JIS C1604-1989
*Passive Thermistors 20K and smaller are CE compliant
Specications subject to change without notice.
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