This device is designed to detect oxygen concentration levels in gas using a zirconia sensor. The output measurement is in a 4-20mA current loop. The measured gas is fed through a tube into the measuring chamber with the sensor (the sensor and chamber are included). The inlet pressure is about 1 bar, in the measuring chamber pressure is comparable to the atmospheric pressure, the measured gas is then discharged into the atmosphere. The gas flow is about 0,3l/min.

Sensor must be used only for clean, dry gases and gas mixtures. Sensor is not suitable for measurements of mixtures containing flammable gases such as H2, CO, CH4, NH3. Sensor is also not suitable for mixtures containing halogen and sulfur compounds, such as F2, Cl2, HCl, HF, SO2, H2S, CS2, Freon.

Technical parameters:

Supply voltage 24 V/dc ± 10%
Supply current 500 mA
Output signal 4 mA to 20 mA
Oxygen concentration range 0,2% to 100% (2-1000mbar)
Sensitivity 0,01% (0,2-10%)
0,1% (0,2-100%)
Accuracy ± 0,5 %
Warm-up time 60 s
Temperature stabilization after start-up min. 5 minutes
Measured gas flow 0,2 – 0,3 l / min
Inlet pressure 1 bar ± 0,1bar
Operating temperature -10 ° C to 50 ° C [14 ° F to 122 ° F]
Dimensions 167 x 130 x 65 mm

This system is in compliance with the European EMC Standard.