The BAPI BA/1K-RPP-25' is a single-point remote probe built around a rigid 304 stainless steel probe, 1.75 in long and 0.25 in OD, with a double-encapsulated element and a passive 1K Platinum RTD (385 Curve). It ships with 25 ft (7.6 m) of flame-retardant PVC plenum-rated cable, bare for direct field termination.
Remote probes earn their keep where an immersion or duct sensor physically will not fit — refrigerated case monitoring, strap-on pipe sensing, thermowell inserts, chamber measurement and L-bracket mounting in tight or hard-to-reach spaces. The element is passive and has no polarity, so both leads land directly on any controller analog input configured for the 1K Platinum RTD curve.
Specifications
| Sensing Element | 1K Platinum RTD (385 Curve), PTC, 2-wire passive |
| Output | Resistance |
| Accuracy | 0.12% @ Ref, or ±0.55°F (±0.3°C) |
| Stability | ±0.25°F (±0.14°C) |
| Self Heating | 0.4 °C/mW @ 0°C |
| Sensitivity | 3.85Ω/°C approx. @ 32°F (0°C) |
| Probe Range | -40° to 221°F (-40° to 105°C) |
| 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 | None — bare leads for field termination |
| Operating Range | Units with plenum-rated wire: -4° to 167°F (-20° to 75°C), 0-100% RH non-condensing |
| Agency | RoHS, CE (passive thermistors 20KΩ and smaller), 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 high or low voltage AC power wiring — BAPI testing shows signal error when AC runs alongside sensor leads.
- Two-wire passive element, no polarity. Land both leads on the controller analog input.
- 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.
Documentation
Product Datasheet (PDF) · Installation & Operation (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:
- Passive Resistive
- Sensing Element:
- 1K Platinum RTD (385 Curve)
- Cable Type:
- Plenum-Rated
- Lead Length:
- 25 ft
- Enclosure:
- None (Bare Leads)
- Enclosure Rating:
- Not Applicable
- Probe Material:
- 304 Stainless Steel
- Termination Option:
- Standard (Flying Leads)
- Mounting Style:
- Strap-On / Bracket / Thermowell
![BA/1K[NI]-RPP-25' : Remote Probe, 1K Nickel RTD (JCI Curve), Plenum-Rated Cable, 25 ft (7.6 m) Lead Length](https://cdn11.bigcommerce.com/s-ksbdsp5vfo/images/stencil/500x659/products/89526/130665/BAPI-47-RemoteProbe__67508.1786939229.png?c=1 "BA/1K[NI]-RPP-25' : Remote Probe, 1K Nickel RTD (JCI Curve), Plenum-Rated Cable, 25 ft (7.6 m) Lead Length")
