Ammonia Detector-Transmitter E2638-NH3-S
- Long-life metal oxide semiconductor gas sensor
- Typical range 0...1000 ppm NH3
- 2 × 4-20 mA / 0-10 V, RS485
- Relay or LCD indicator option
- Attached or remote sensor options
Ammonia detector-transmitter E2638-NH3 is a member of new PluraSens® family of multifunctional measurement instruments.
Applications include refrigeration facilities and animal agriculture (cattle, pig and poultry livestock houses).
The instrument utilises novel fully calibrated and temperature compensated metal-oxide gas sensor with excellent repeatability, stability and long lifetime.
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. Default alarm set-points are 25 and 35 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.
|Sensor type||metal-oxide semiconductor|
|Detection ranges||0...1000 ppm NH3|
|Resolution||1 ppm NH3|
|Accuracy||± 5 ppm NH3|
|Sensor lifetime||> 5 years|
|Power supply||11...30 VDC / 24 VAC|
|Digital interface||RS485, Modbus RTU protocol|
|Analog outputs||4-20 mA / 0-10 V, user settable|
|Output relays (option)||2 × SPST relays (closing contact),|
|250 VAC / 30 VDC, 5 A max|
|Enclosure||grey ABS plastic, wall mount, IP65|
|Dimensions||H82 × W80 × D55 mm|
|Operating conditions||-40...+50 °C, 15...90% RH|