- Stable long-life metal-oxide sensor
- Ranges 0...1000 / 0...2500 ppm halocarbon gas
- Resolution 1 ppm halocarbon gas
- Two SPST relays option
- 2 × 4-20 mA or 0-10 V, RS485
Refrigerant detector-transmitter E2638-HFC is a member of new PluraSens® family of multifunctional measurement instruments.
Applications include cold storage warehouses, refrigeration plants, skating arenas, hotels.
The instrument utilises 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.
For demanding applications, a NDIR sensor is available on request.
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|
|optical NDIR on demand|
|Detection ranges||0...1000 ppm halocarbon gas|
|0...2500 ppm halocarbon gas|
|Resolution||1 ppm halocarbon gas|
|Sensor lifetime||>5 years|
|Power supply||12...36 VDC (default),|
|24 VAC or 230 VAC as options|
|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||grey ABS plastic, wall mount, IP65|
|Dimensions||H90 × W145 × D55 mm|
|Operating conditions||-30...+60 °C, < 95 %RH|