E2638 Sulfur Hexafluoride SF6 Transmitter
The E2638-SF6 detector-transmitter offers precise SF6 gas detection with a stable NDIR optical sensor, measuring up to 2000 ppm. Featuring dual analog outputs, Modbus RTU digital interface, and optional relays, it’s ideal for SF6 leakage control at power plants and safety systems.
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Description
Features
- Stable long-life optical NDIR sensor
- Range 0…1000 or 2000 ppm SF6
- Resolution 2 ppm or 4 ppm SF6
- Two SPST relays (option)
- 2 × 4-20 mA or 0-10 V, RS485
Description
Sulfur hexafluoride detector-transmitter E2638-SF6 is a member of PluraSens® family of multifunctional measurement instruments.
Applications include SF6 leakage control at power plants.
The instrument utilises a fully calibrated and temperature compensated optical NDIR 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 | sulfur hexafluoride SF6 |
| Sensor type | optical NDIR |
| Sampling method | diffusion |
| Detection range | 0…1000 ppm SF6 |
| 0…2000 ppm SF6 | |
| Resolution | 2 ppm SF6 for 1000 ppm range |
| 4 ppm SF6 for 2000 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), |
| Enclosure | grey ABS plastic, wall mount, IP65 |
| Dimensions | H90 × W145 × D55 mm |
| Operating conditions | -20…+50 °C, 15…95 %RH |
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