E2638 Solvent Vapors VOC Transmitter
The E2638-VOC is a robust volatile organic compounds detector-transmitter utilizing a metal-oxide sensor. It measures flammable and toxic solvent vapors, including toluene and xylene, with options for relay outputs and Modbus RTU connectivity for industrial safety applications.
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Description
Features
- Stable long-life metal-oxide sensor
- Range 0…100% LEL or 0…1000 ppm
- Resolution 0,1% LEL or 1 ppm
- Two SPST relays option
- 2 × 4-20 mA or 0-10 V, RS485
Description
Volatile organic compounds detector-transmitter E2638-VOC is a member of new PluraSens® family of multifunctional measurement instruments which is intended for detection of various solvent vapors, e.g. toluene, xylene, ethanol.
Applications include storages, painting chambers and other areas, where toxic or potentially explosive concentration of volatile organic compounds can accumulate.
The instrument utilises a fully calibrated metal-oxide semiconductor gas sensor with excellent repeatability, stability and long lifetime.
According to user’s preferences the detector can be ordered for either fire prevention (range 0…100% LEL) or for toxicity prevention (range 0…1000 ppm).
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
| Detected vapors | acetone, ethanol, toluene, xylene etc |
| Default calibration | toluene |
| Sensor type | metal-oxide semiconductor |
| Sampling method | diffusion |
| Detection range | 0…100% LEL (flammable range) |
| 0…1000 ppm (toxic range) | |
| Resolution | 0,1% LEL for LEL range |
| 1 ppm for ppm range | |
| Sensor lifetime | > 5 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 | 20% LEL / 50% LEL |
| 100 ppm / 300 ppm | |
| Enclosure | grey ABS plastic, wall mount, IP65 |
| Dimensions | H90 × W145 × D55 mm |
| Operating conditions | -30…+70 °C, < 95% RH |
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