Oxygen analyzer AnOx

Oxygen Analyzer AnOx is a reliable and accurate fixed industrial instrument for oxygen volume ratio measurement in an automatic mode.


  • Automated by calibration gas;
  • Ability to analyze two streams;
  • Storage of results in the memory of the device;
  • Various ways to transfer data.


  • At gas processing plants;
  • On objects of transportation and distribution of natural gas;
  • At the enterprises of the chemical, oil refining and gas industry;
  • Control of exported gas;
  • To prevent abnormal situations in the event of a significant concentration of oxygen in natural gas;
  • In custody systems in the distribution of state metrological control and supervision,
    including for quality control of natural gas in accordance with the requirements of ASTM D 7607-11 and European standard EN 16726:2015.
435 mm
425 mm

Note: Depending on the type of oxygen sensor installed, the measurement ranges can vary from0-500 ppm to 0-100% by volume

Metrologic Characteristics

Measurement range О2 Maximum allowed uncertainty, mln-1
0 - 500 mln-1 ± (1,5 + 0,05∙Свх)
0 - 2000 mln-1 ± (5 + 0,08∙Свх)
0 - 10000 mln-1 ± (100 + 0,06∙Свх)
0 - 100% ± (0,5 + 0,03∙Свх) %


Operating principle Electro-chemical
Number of streams Up to 2
Analyzed media gaseous
Sample gas pressure controller external mechanical
Sample gas consumption, ml/min 200-2000
Operation mode automatic
Analyses cycle continuous
Calibration gas automatic
Explosion protection 1 Еx d IIC T6 Gb
IP rating IP65
Power consumption, not more, W 90 (during warming up), 30 (during operation)
Power supply, V 220
Data transfer interfaces RS232/RS485, Ethernet, 4-20 mA, GSM / GPRS
Sample gas pressure, MPa 0,1 ± 0,05
Software Built-in and external
Ambient temperature, °С from -40 to +50
Weight, kg, not more 39
Dimensions, mm (LxWxH) 435х275х425