Oxygen Detector
  • Easy to install robust enclosure
  • Range 0...25 %vol O2
  • Two analog outputs settable to 4-20 mA or 0-10 V
  • RS485 Modbus RTU digital interface
  • Relay option
  • Remote probe option

Oxygen detector-transmitter E2648-O2 is a member of new PluraSens® family of multifunctional measurement instruments.

The instrument may be used to prevent critical decrease of O2 concentration as well as to control the absence of the oxygen in gas mixtures.

The instrument utilises novel fully calibrated and temperature compensated electrochemical 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. Default alarm set-points are 19,5% and 18,0% O2

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

Technical Data
Calibration Oxygen O2
Sensor type Electrochemical
Sampling Diffusion
Detection range 0...25 %vol O2
Resolution 0,01 %vol O2
Non-linearity < 0,2 %vol O2
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, protection class IP66
Dimensions H120 × W125 × D57 mm
Operating conditions -30...+50 °C, 15...90% RH, no condensation