20787_INS_Duct_Passive_RTD_Therm Installation & Operations Duct Mounted Thermistor and RTD Temperature Probe (BA/#-D) Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:sales@bapihvac.com • Web:www.bapihvac.com Specifications subject to change without notice. rev. 09/26/17 1 of 4 The BA/#-D is a duct mounted passive resistive sensor. It comes in a variety of probe lengths and optional mounting enclosures shown below. The BA/#-D can be ordered with all the most common Thermistor’s or RTD’s used with virtually any BAS system. All thermistor and (385) RTD sensors come with standard accuracy as well as high accuracy models [XP] and [A] options respectively. Overview and Identification Fig 2: Duct Unit with J-Box (Standard) Fig 6: Duct Unit with Weather Tight (EU) Enclosure Fig 4: Duct Unit with BAPI-Box (BB) Enclosure Fig 3: Duct Unit with Weatherproof (WP) Enclosure Fig 5: Duct Unit with BAPI-Box 2 (BB2) Enclosure Fig 1: Duct Unit with No Box (NB) Fig 7: Duct 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)20787_INS_Duct_Passive_RTD_Therm Installation & Operations Duct Mounted Thermistor and RTD Temperature Probe (BA/#-D) Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:sales@bapihvac.com • Web:www.bapihvac.com Specifications subject to change without notice. rev. 09/26/17 2 of 4 Mounting Fig 10: BAPI-Box (BB) Enclosure Mounting Holes, Rotate 90° for Horizontal Mounting Fig 12: Weatherproof (WP) Enclosure Mounting Holes Fig 11: Weather Tight (EU or EUO) Enclosure Mounting Holes Fig 8: Junction Box or No Box (NB) Mounting Holes Fig 9: BAPI-Box 2 (BB2) Enclosure Mounting Holes 1. Place the sensor in the middle of the duct away from temperature stratified air, coils or humidifiers to achieve the best temperature reading. 2. Drill the probe hole as depicted on this page for the enclosure being used. Insert the probe into the duct. 3. Mount the enclosure to the duct using BAPI recommended #8 screws through a minimum of two opposing mounting tabs. Weatherproof (WP) enclosures 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. Note 1: Do not drill into the water tight enclosures (BB, BB2, WP, EU, EUO) which will violate the NEMA and/or IP rating. Note 2: Use caulk or Teflon tape for your conduit entries to maintain the appropriate NEMA or IP rating for your application. Note 3: Conduit entry for outdoor or wet applications should be from the bottom of the enclosure. Fig 13: BAPI-Box 4 (BB4) Enclosure Mounting Holes20787_INS_Duct_Passive_RTD_Therm Installation & Operations Duct Mounted Thermistor and RTD Temperature Probe (BA/#-D) Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:sales@bapihvac.com • Web:www.bapihvac.com Specifications subject to change without notice. rev. 09/26/17 3 of 4 Wiring & Termination BAPI recommends using twisted pair of at least 22AWG and sealant filled 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. Fig. 14: 2 Wire Lead Wire Termination for Thermistor or RTD Fig. 15: 3 Wire Lead Wire Termination for RTD Thermistor or RTD Sensor To Controller Analog Input (AI) (No Polarity) To Controller Analog Input (AI) (No Polarity) Fig. 16: Terminal Strip (-TS) Option for 2 Wire Sensors Termination Fig. 17: Terminal Strip (-TS) Option for 3 Wire Sensors Termination Fig. 18: Test & Balance (-TB) Option for 2 Wire Sensors Termination Fig. 19: Test & Balance (-TB) Option for 3 Wire Sensors Termination20787_INS_Duct_Passive_RTD_Therm Installation & Operations Duct Mounted Thermistor and RTD Temperature Probe (BA/#-D) Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:sales@bapihvac.com • Web:www.bapihvac.com Specifications subject to change without notice. rev. 09/26/17 Specifications Possible Solutions: - Confirm 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. Problems: Controller reports higher or lower than actual temperature Diagnostics 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) 100 Ω or 1K Ω @0ºC, 385 curve, Platinum (Pt) 1K Ω @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) 1000 Ω @70ºF, JCI curve Ni Probe range -40º to 221ºF (-40 to 105ºC) Sensitivity Approximate @ 32ºF (0ºC) Thermistor Non-linier See bapihvac.com “Sensor Specs” 1K Ω RTD (Pt) 3.85 Ω /ºC 100 Ω RTD 0.385 Ω /ºC Nickel (Ni) 2.95 Ω /ºF for the JCI RTD Lead wire 22awg stranded Wire Insulation Etched Teflon, Plenum rated Probe 304 Stainless steel, 0.25” OD Probe Length: 2’, 4’, 8’ or per order Mounting Extension tabs (ears), 3/16” holes Duct Gasket: 1/4” Closed cell foam (impervious to mold) Enclosure Types: (Part number designator in bold) No Box: -NB, intended for open wiring 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, with three ½” drill-outs, one ½” open port Weather Tight: -EU, EUO, w/ two ½” knock-outs Enclosure Ratings: (Part number designator in bold) No Box: -NB, No rating 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 open port) Weather Tight: -EU, NEMA 4, IP66 Weather Tight: -EUO, NEMA 4, IP66, UV rated Enclosure Material: (Part number designator in bold) No Box: -NB, Nylon 66, UL94H-B 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, ASA (Geloy) Plastic, UL94V-0, UV rated Ambient (Enclosure): 0 to 100% RH, Non-condensing All BAPI-Boxes: -BB, BB2 & BB4, -40 to 185ºF (-40 to 85ºC) Weather Tight: -EU, -40 to 185ºF (-40 to 85ºC) Junction Box: -JB, -40 to 212ºF (-40 to 100ºC) No Box -NB, -40 to 212ºF (-40 to 100ºC) Weatherproof: -WP, -40ºF to 212ºF (-40º to 100ºC) Agency: RoHS PT= DIN43760, IEC Pub 751-1983, JIS C1604-1989 4 of 4Next >