• HEF-1
  • Call for availability



  • Square wave pulse output signal
  • Duty cycle of approx. 50%
  • 50mA nominal trip point self-resetting fuse
  • Sinking output and sourcing output
  • Compatible with Aluminum, 303 Stainless Steel and 316 Stainless Steel gear meter bodies


The HEF is a Hall Effect sensor which is compatible with the Aluminum, 303 Stainless Steel and 316 Stainless Steel body JV-CG and JV-KG series of flow meters. The sensor detects the rotation of the flow meter's gears and emits a frequency signal proportional to flow. The output signal is a square wave pulse which has a duty cycle of approximately 50%.

HEF signal outputs are protected with a self-resetting fuse. This fuse has a 50mA nominal trip point. When a trip occurs, turn off power to the sensor and remove output load to reset fuse.

The HEF-1 hall effect sensor is used with all JVS-SLGS(F), HPM & HPM-SLG(F), old style JV-KL & JV-C meters up to JV-60.