- Suitable for ATEX Zones 2 and 22
- Stable long-life metal-oxide sensor
- Range 0...1000 ppm halocarbon gas
- Resolution 1 ppm halocarbon gas
- Two SPST relays option
- 2 × 4-20 mA or 0-10 V, RS485
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 tilises a fully calibrated metal-oxide semiconductor 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.
Two relays with closing contact (optional) may be used for remote signalling or concentration control. Two alarm set-points are user settable.
Two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol can be used to connect the detector to safety or building automation systems.
|Detected gases||R-12, R-123, R-125, R-134a, R-143, R-22, R-404a, R-407c, R-410a, R1234yf etc|
|Sensor type||metal-oxide semiconductor|
|Detection range||0...1000 ppm halocarbon gas|
|Resolution||1 ppm halocarbon gas|
|Sensor lifetime||>5 years|
|Power supply||11...30 VDC, 24 VAC or 90...265 VAC|
|Digital interface||RS485, Modbus RTU protocol|
|Analog outputs||2 × 4-20 mA / 0-10 V, user settable|
|Output relays (option)||2 × SPST relays (closing contact),|
|250 VAC / 30 VDC, 5 A max|
|Default alarm set-points||100 ppm / 500 ppm halocarbon gas|
|Enclosure||die-cast aluminium, wall mount, IP66|
|Dimensions||H120 × W125 × D57 mm|
|Operating conditions||-30...+70 °C, < 95 %RH|
|safe areas and ATEX Zones 2 and 22|