Flameproof Refrigerant Detector-Transmitter
- Suitable for ATEX Zones 2 and 22
- Stable long-life metal-oxide gas sensor
- Range 0...1000 ppm
- Resolution 1 ppm
- 2 × 4-20 mA / 0-10 V, RS485
- Two SPST relays (option)
E2658 series is a new line of flameproof transmitters intended for use in ATEX Zones 2 and 22.
E2658 series devices are based on PluraSens® multifunctional platform.
Refrigerant transmitter E2658-HFC utilises fully calibrated and temperature compensated MOS gas sensor with excellent repeatability, stability and long lifetime. The sensor is highly sensitive to a wide range of CFC, HFC and HFO compounds, including R-12, R-123, R-125, R-134a, R-143, R-22, R-404a, R-407c, R-410a, R1234yf and similar. For demanding applications, a NDIR sensor is available on request.
To connect the device to safety or building automation systems use two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol.
Two relays with closing contact (option) may be used for remote signalling or ventilation control. Default alarm set-points are typically at 100 ppm and at 500 ppm.