![BA/T1K[0 TO 120F]-RPP-25'-WP-TS : Remote Probe Temperature Transmitter, 4-20 mA, 0 to 120F, 25 ft (7.6 m) Lead Length, Weatherproof Enclosure](https://cdn11.bigcommerce.com/s-ksbdsp5vfo/images/stencil/1280x1280/products/89579/130718/BAPI-49-RemoteProbeWeatherproof__76374.1786939255.png?c=1 "BA/T1K[0 TO 120F]-RPP-25'-WP-TS : Remote Probe Temperature Transmitter, 4-20 mA, 0 to 120F, 25 ft (7.6 m) Lead Length, Weatherproof Enclosure")
![BA/T1K[0 TO 120F]-RPP-25'-WP-TS : Remote Probe Temperature Transmitter, 4-20 mA, 0 to 120F, 25 ft (7.6 m) Lead Length, Weatherproof Enclosure](https://cdn11.bigcommerce.com/s-ksbdsp5vfo/images/stencil/500x659/products/89579/130718/BAPI-49-RemoteProbeWeatherproof__76374.1786939255.png?c=1 "BA/T1K[0 TO 120F]-RPP-25'-WP-TS : Remote Probe Temperature Transmitter, 4-20 mA, 0 to 120F, 25 ft (7.6 m) Lead Length, Weatherproof Enclosure")
The BAPI BA/T1K[0 TO 120F]-RPP-25'-WP-TS is a loop-powered temperature transmitter that pairs a 1KΩ platinum RTD (385 curve) probe with an onboard transmitter circuit, factory-calibrated to a 0 to 120°F span and housed in a Weatherproof (WP) enclosure. It delivers 4 to 20 ma, 2-wire loop to your controller, so the signal arrives already linearized — no resistance curve to configure at the front end.
The sensing element is a rigid 304 stainless steel probe, 1.75 in long and 0.25 in OD, terminated with 25 ft (7.6 m) of flame-retardant PVC plenum-rated cable. The transmitter linearizes the signal at the device, so the controller input is configured for a standard analog signal rather than a thermistor or RTD resistance curve. BAPI specifies a 12 to 40 VDC supply on a 2-wire loop, and calls for the transmitter to be mounted at least 5 ft from any radio wave-emitting device.
Specifications
| Output | 4 to 20 mA, 2-wire loop |
| Calibrated Range | 0 to 120°F |
| Power Required | 12 to 40 VDC |
| Output Wiring | 2-wire loop |
| System Accuracy | ±0.065% of span |
| Linearity | ±(0.125 × T-20°C)/100 |
| Output Limits | <1 mA (short), <22.35 mA (open) |
| Load | 850Ω @ 24 VDC |
| Sensing Element | 1KΩ Platinum RTD @ 0°C, 385 curve, 2-wire |
| RTD Accuracy | 0.12% @ Ref, or ±0.55°F (±0.3°C) |
| RTD Sensitivity | 3.85Ω/°C approx. @ 32°F (0°C) |
| Probe Range | -40° to 221°F (-40° to 105°C) |
| Transmitter Ambient | -4° to 158°F (-20° to 70°C), 0-95% RH non-condensing |
| Probe / Body | Rigid 304 stainless steel, 1.75 in (44.5 mm) long, 0.25 in (6.35 mm) OD |
| Lead Length | 25 ft (7.6 m) |
| Wire Insulation | Flame-retardant PVC plenum-rated cable |
| Lead Wire | 22 AWG stranded |
| Enclosure | Weatherproof (WP) |
| Enclosure Rating | NEMA 3R, IP14 |
| Enclosure Material | Cast aluminum, UV rated |
| Enclosure Dimensions | 2.75 × 2.16 × 4.50 in (69.9 × 54.9 × 114.3 mm) |
| Conduit Entries | Two 1/2 in FNPT entries (bell box) |
| Wall Gasket | 0.25 in (6.35 mm) closed cell foam, mold impervious |
| Enclosure Ambient | -40° to 212°F (-40° to 100°C) |
| Termination Option | Terminal Strip (-TS) — factory-wired screw terminals |
| Operating Range | Units with plenum-rated wire: -4° to 167°F (-20° to 75°C), 0-100% RH non-condensing |
| Agency | CE EN 61326-1:2013 EMC (Industrial), RoHS, PT = DIN43760 | IEC Pub 751-1983 | JIS C1604-1989 |
Installation Notes
- Wire with twisted pair, 22 AWG minimum, using sealant-filled connectors. Heavier gauge may be needed on long runs.
- Do not share conduit with NEC Class 1, 2 or 3 AC power wiring, or with feeds to motors, contactors or other highly inductive loads.
- Keep the transmitter at least 5 ft from any radio wave-emitting device — two-way radios within that distance can cause interference.
- Wire with power disconnected. Incorrect supply voltage, polarity or connections can damage the unit and will void the warranty.
- For strap-on pipe mounting, insulate a minimum of four pipe diameters on each side of the probe (a 1/2 in pipe needs 2 in of insulation each way, wrapped fully around).
- The break-off tab on a BAPI Flexible Probe Bracket (BA/FPB) accepts the 1/4 in probe body and limits heat conduction from the mounting surface.
- Mount the enclosure with #8 screws through at least two opposing tabs; a 1/8 in pilot hole makes this easier.
- Use caulk or Teflon tape on conduit entries, and bring conduit in from the bottom for outdoor or wet locations.
- The -TS terminal strip arrives factory-wired to the sensor. Land the controller pair on "Sensor A Out"; "Sensor A In" is already made up.
Documentation
Product Datasheet (PDF) · Installation & Operation – Transmitters (PDF) · Enclosure Dimensions (PDF)
ZOT Supply is an authorized distributor for Building Automation Products, Inc. (BAPI). This product carries the full BAPI factory warranty.
- Product Family:
- Remote Probe
- Signal Type:
- 4-20 mA Transmitter
- Sensing Element:
- 1K Platinum RTD (385 Curve)
- Cable Type:
- Plenum-Rated
- Lead Length:
- 25 ft
- Enclosure:
- Weatherproof (WP)
- Enclosure Rating:
- NEMA 3R, IP14
- Probe Material:
- 304 Stainless Steel
- Termination Option:
- Terminal Strip (-TS)
- Mounting Style:
- Strap-On / Bracket / Thermowell
- Calibrated Range:
- 0 to 120F
![BA/T1K[0 TO 120F]-RPP-25'-WP : Remote Probe Temperature Transmitter, 4-20 mA, 0 to 120F, 25 ft (7.6 m) Lead Length, Weatherproof Enclosure](https://cdn11.bigcommerce.com/s-ksbdsp5vfo/images/stencil/500x659/products/89578/130717/BAPI-49-RemoteProbeWeatherproof__11557.1786939255.png?c=1 "BA/T1K[0 TO 120F]-RPP-25'-WP : Remote Probe Temperature Transmitter, 4-20 mA, 0 to 120F, 25 ft (7.6 m) Lead Length, Weatherproof Enclosure")
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