Features
- Highly sensitive Photo Ionization Detector
- Range 0...40 or 0...200 ppm isobutylene
- Resolution 0,01 ppm or 1 ppm isobutylene
- Two SPST relays option
- 2 × 4-20 mA or 0-10 V, RS485
Description
Volatile organic compounds detector-transmitter E2638-PID is a member of new PluraSens® family of multifunctional measurement instruments.
The instrument utilises highly sensitive photoionization detectors (PID) with extremely low minimal detection levels. The transmitter exhibits sensitivity to compounds with ionization potential less than 10.6 eV, i.e. to most solvent vapors.
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 | isobutylene |
| Sensor type | Photo Ionization Detector |
| Sampling method | diffusion |
| Detection range | 0...40 ppm isobutylene |
| 0...200 ppm isobutylene | |
| Resolution | 0,01 ppm C4H8 for 40 ppm range |
| 1 ppm C4H8 for 200 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 | |
| Enclosure | grey ABS plastic, wall mount, IP65 |
| Dimensions | H90 × W145 × D55 mm |
| Operating conditions | -40...+65 °C, < 95 %RH |
