- Suitable for ATEX Zones 2 and 22
- Stable long-life pellistor (catalytic bead) sensor
- Range 0...15% vol. (0…100% LEL)
- Resolution 0.1% vol. or 1% LEL
- Two SPST relays option
- 2 × 4-20 mA or 0-10 V, RS485
- Wall mount flameproof metal enclosure
E2658 series is a new line of flameproof detectors and transmitters intended for use in ATEX Zones 2 and 22.
The instruments are based on the PluraSens® multifunctional platform.
One of the most common applications is detection of explosive Ammonia concentrations in refrigeration machinery rooms.
Ammonia detector-transmitter E2658-NH3-P utilizes a fully calibrated and temperature compensated pellistor (catalytic) gas sensor with excellent repeatability, stability and long lifetime.
Two relays with closing contact (optional) may be used for remote signaling 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.
|Sensor type||Pellistor (catalytic bead)|
|Detection range||0...15% vol. (0…100% LEL)|
|Resolution||0.1% vol. or 1% LEL|
|Response time T90||≤10 s|
|Accuracy||± 2% LEL|
|Sensor lifetime||> 3 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|
|Enclosure||Die-cast aluminum, wall mount, IP66|
|Dimensions||H120 × W125 × D57 mm|
|Operating conditions||-20...+60 °C, 0...95 %RH|
|Safe areas and ATEX Zones 2 and 22|