Sulfur Hexafluoride Detector-Transmitter

  • Stable long-life optical NDIR gas sensor
  • Range 0...1000 ppm
  • 2 × 4-20 mA or 0-10 V, RS485
  • Attached or remote sensor options
  • Relay or LCD indicator option


Sulfur hexafluoride detector-transmitter E2638-SF6 is a member of PluraSens® family of multifunctional measurement instruments.

Applications include SF6 leakage control at power plants.

The instrument utilises optical NDIR gas sensor.

To connect the detector to safety or building automation systems use two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol. We recommend to set the output scale within 20-100% of the detection range.

Two relays with closing contact (option) may be used for remote signalling or ventilation control. By default alarm set-points are at 100 and 500 ppm.

The device is available with either attached or remote sensor probe (default cable length is 3 m).

A version with an LCD indicator is available.