The BAPI BA/3K-RPP-15' 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 3K Thermistor. It ships with 15 ft (4.6 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 3K Thermistor curve.
Specifications
| Sensing Element | 3K Thermistor, NTC, 2-wire passive |
| Output | Resistance (non-linear) |
| Accuracy | ±0.36°F (±0.2°C) standard |
| Stability | < 0.036°F/year (< 0.02°C/year) |
| Heat Dissipation | 2.7 mW/°C |
| Temp. Drift | < 0.02°C per year |
| 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 | 15 ft (4.6 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:
- 3K Thermistor
- Cable Type:
- Plenum-Rated
- Lead Length:
- 15 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
