Features
- Stable long-life metal-oxide / pellistor sensor
- Range 0...100% LEL CH4
- Resolution 0,1 / 1 % LEL CH4
- 2 × 4-20 mA or 0-10 V, RS485
Description
Methane transmitter E2618-CH4 is a member of new PluraSens® family of multifunctional measurement instruments.
Applications include underground parkings, boiler houses, kitchens, and other confined spaces, where potentially explosive concentration of methane can accumulate.
The instrument utilises fully calibrated metal-oxide semiconductor or pellistor gas sensors with excellent repeatability, stability and long lifetime.
Two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol can be used to connect the transmitter to safety or building automation systems.
Technical Data
| Calibration | methane CH4 |
| Sensor type | metal-oxide semiconductor (MOS) |
| pellistor (catalytic bead) on demand | |
| 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 as option | |
| Digital interface | RS485, Modbus RTU protocol |
| Analog outputs | 2 × 4-20 mA / 0-10 V, user settable |
| Enclosure | grey ABS plastic, wall mount, IP65 |
| Dimensions | H82 × W80 × D55 mm |
| Operating conditions | -40...+70 °C, 0...100 %RH (MOS) |
| -10...+50 °C, 0...95 %RH (pellistor) |