Features
- Suitable for ATEX Zones 2 and 22
- Stable long-life metal-oxide / pellistor sensor
- Range 0...100% LEL CH4
- Resolution 0,1 / 1 % LEL CH4
- Two SPST relays option
- 2 × 4-20 mA or 0-10 V, RS485
Description
E2670 series is a new line of flameproof detectors and transmitters intended for use in ATEX Zones 2 and 22.
E2670 series devices are based on PluraSens® multifunctional platform.
Methane detector-transmitter E2670-CH4 utilises fully calibrated metal-oxide semiconductor or pellistor gas sensors 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 | methane CH4 |
| Sensor type | metal-oxide semiconductor (MOS) |
| Sampling method | diffusion |
| Detection range | 0...100% LEL CH4 |
| Resolution | 0,1 /1 %LEL CH4 |
| Sensor lifetime | > 5 years (MOS) |
| > 3 years (pellistor) | |
| 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 | 20% LEL / 50% LEL CH4 |
| Enclosure | die-cast aluminium, wall mount, IP65 |
| Dimensions | H155 × W145 × D110 mm |
| Operating conditions | -40...+70 °C (MOS); -10...+50 °C (pellistor) |
| ≤ 95% RH non condensing | |
| safe areas and ATEX Zones 2 and 22 |
