It adopts turbine or calorimetric detection principle. When liquid passes through the sensor, the internal sensing element captures flow changes, compares with preset threshold and outputs switch signal. It also provides analog flow value feedback to PLC, for low-flow alarm and pump dry-run protection.

Certification: CE

Sensing probe, signal processing board, LED indicator, thread housing and cable connector. Common faults include no flow detection, signal drift, blockage by impurities and wiring short circuit.