Features

Suitable for ATEX Zones 2 and 22
Stable long-life electrochemical sensor
Range 0...50 or 0...2000 ppm SO2
Resolution 0,1 ppm or 1 ppm SO2
Two SPST relays option
2 × 4-20 mA or 0-10 V, RS485

Description

E2670 series is a new line of flameproof detectors and transmitters intended for use in ATEX Zones 2 and 22.

E2670 series devices are based on PluraSens® multifunctional platform.

Sulfur dioxide detector-transmitter E2670-SO2 utilises a fully calibrated and temperature compensated electrochemical 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 dioxide SO2
Sensor type	electrochemical
Sampling method	diffusion
Detection range	0...50 ppm SO2
	0...2000 ppm SO2
Resolution	0,1 ppm SO2 for 50 ppm range
	1 ppm SO2 for 2000 ppm range
Sensor lifetime	> 2 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	die-cast aluminium, wall mount, IP65
Dimensions	H155 × W145 × D110 mm
Operating conditions	-30...+50 °C, 15...90 %RH
	safe areas and ATEX Zones 2 and 22