MATelec FPC-12533 PVC 4 Point 700mm Conductivity Sensing Probe

Deep sumps and large capacity wet wells demand a probe length that can span the full liquid level range without compromising electrode spacing, and the FPC-12533 provides a 700 mm probe with four conductivity sensing points spaced at 300 mm intervals. The UV resistant PVC body houses 316 stainless steel electrodes at the common, stop, start, and high level positions, and a 10 m submersible rubber cable connects the probe to the sensing relay that manages pump switching operations.

Overall probe length measures 725 mm with a 55 mm base section, and the 300 mm spacing between electrodes accommodates tanks where the operational level band is substantial. Each sensing point uses 316 stainless steel for corrosion resistance in potable water, grey water, black water, storm water, and rain water service. Epoxy resin fills the internal cavity to seal the cable entry points and prevent moisture from reaching the wiring terminations.

Vertical mounting within the wet well positions the common electrode at the lowest detection point and the high level electrode at the upper boundary of the sensing range. The four-wire cable carries the individual electrode signals to a conductivity sensing relay, which interprets resistance changes between the stainless steel points and provides switching outputs to the pump controller. Wire labels match the terminal markings on the relay to simplify installation procedures.

Features

• Four preset 316 stainless steel sensing points at 300 mm intervals
• UV resistant PVC probe body measuring 725 mm in total length
• 10 m submersible rubber cable with epoxy resin sealed internal terminations
• Suitable for potable, grey, black, storm, and rain water applications
• Compatible with MATelec HydroSTART and HydroWHIZ controller inputs
• Four-wire configuration with labelled conductors for signal identification
• Periodic wipe down of sensing points is the only recommended maintenance