Features
- Suitable for ATEX Zones 2 and 22
- Stable long-life electrochemical sensor
- Range 0...20 or 0...200 ppm NO2
- Resolution 0,1 ppm or 1 ppm NO2
- Two SPST relays option
- 2 × 4-20 mA or 0-10 V, RS485
Description
E2670 series is a new line of flameproof detectors-transmitters intended for use in ATEX Zones 2 and 22.
E2670 series devices are based on PluraSens® multifunctional platform.
Nitrogen dioxide detector-transmitter E2670-NO2 utilises a fully calibrated and temperature compensated electrochemical gas sensor with excellent repeatability, stability and long lifetime.
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.
Technical data
| Calibration | nitrogen dioxide NO2 |
| Sensor type | electrochemical |
| Sampling method | diffusion |
| Detection range | 0...20 ppm NO2 |
| 0...200 ppm NO2 | |
| Resolution | 0,1 ppm NO2 for 20 ppm range |
| 1 ppm NO2 for 200 ppm range | |
| Sensor lifetime | > 2 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 | 3 ppm / 6 ppm NO2 |
| Enclosure | die-cast aluminium, wall mount, IP65 |
| Dimensions | H155 × W145 × D110 mm |
| Operating conditions | -20...+50 °C, 15...90 %RH |
| safe areas and ATEX Zones 2 and 22 |
