For protection of submersible motors against damage caused by the ingress of water. Terminals 5 & 7 connect to the motoring terminals on the submersible motor. The output relay energizes upon application of power. The relay will de-energize if probe current is more than 20µA or if probe resistance is less than 1Mohm. The relay will energize if probe current is less than 15µA or if probe resistance is more than 1,4Mohm.
SPM1-5K: 5KÛ sensitivity potentiometer
