E2658-H2S

Flameproof Hydrogen Sulfide Detector
E2658-H2S
Features
  • Suitable for ATEX Zones 2 and 22
  • Stable long-life electrochemical cell
  • Ranges 0...100 ppm, 0...2000 ppm H2S
  • Resolution 0,1 / 2 ppm
  • 2 × 4-20 mA / 0-10 V, RS485
  • Relay or LCD indicator option
  • Attached or remote sensor options
Description

E2658 series is a new line of flameproof detectors-transmitters intended for use in ATEX Zones 2 and 22.

Applications include sewerage systems, labs, industrial premises and other areas, where potentially toxic concentration of hydrogen sulfide can accumulate.

The instrument utilises novel fully calibrated and temperature compensated gas sensor with excellent repeatability, stability and long lifetime.

To connect the detector to safety or building automation systems use two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol. We recommend to set the output scale within 20-100% of the detection range.

Two relays with closing contact (option) may be used for remote signalling or ventilation control. For 0...100 ppm range alarm set-points are 10 and 20 ppm. For 0...2000 ppm range alarm set-points are user settable within 5-95% of the detection range.

The device is available with either attached or remote sensor probe (default cable length is 3 m).

A version with an LCD indicator is available. 


Technical Data
Calibration Hydrogen sulfide H2S
Sensing method Long-life electrochemical cell
Sampling method Diffusion
Detection range Standard 0...100 ppm (500 ppm peak) H2S
High 0...2000 ppm
other ranges on request
Resolution 0,1 / 2 ppm H2S
Sensor lifetime > 2 years
Power supply 11...30 VDC
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 Light grey ABS plastic, wall mount, IP65
Dimensions H90 × W145 × D55 mm
Operating conditions -30...+50 °C, 15...90% RH
Safe areas and ATEX Zones 2 and 22


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