The STP500-150 hydronic immersion temperature sensor features a 150 mm stem designed for water pipework wrapped in insulation or buried in plant room mains. The extended probe length ensures accurate fluid temperature measurement rather than measuring the insulation cladding, eliminating systematic bias in control decisions.
This sensor utilizes a 10 kOhm negative temperature coefficient thermistor with curve type compatibility for Andover Continuum controllers. The device connects directly to controller universal inputs without requiring signal conditioning, configuration, calibration, or external power. Installation occurs through a separate closed pocket, enabling sensor withdrawal and replacement without system drainage.
| Product Type | Hydronic immersion temperature sensor |
|---|---|
| Order Number | 5123174010 |
| Product Designation | STP500-150 |
| Probe Length | 150 mm |
| Sensing Element | 10 kOhm NTC thermistor, curve type 3 |
| Controller Compatibility | Andover Continuum universal temperature inputs |
| Electrical Output | Passive resistance output, no supply required |
| Mounting | Immersion through separate closed pocket fitted to pipe |
| Stem Material | Stainless steel, corrosion resistant |
| Application Medium | Chilled and heating water in closed circuits |
| Cable | Factory fitted lead for connection to controller input |
| Color | White |
| Compliance | CE marking; RoHS and REACH declarations held by Schneider Electric |
As a passive sensor without diagnostics, faults present as implausible readings at the controller. Initial troubleshooting involves measuring resistance at controller terminals and comparing against expected temperature curves.