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Air/gas ratio regulator
Air/gas ratio regulator
Theory behind operation:
The sample to be monitored goes through a furnace at a fixed temperature of 800° C in a cell housing containing at the inlet a combustion catalyzer and at the outlet a zirconium oxygen cell. The measurement of excess oxygen or combustibles after complete combustion of the sample is processed digitally to give a dual range in % oxygen and % combustible on a 4 - 20 mA output and on a digital display.
Main Characteristics:
• Quick start-up
• Easy to use
• Accurate
• Maintenance free
• Compact and rugged
• Response time 5 s
- Sampling pressure : 1 bar maximum
- Sampling flow : 30 to 50 l/h
- Repeatabilty : +/- 2 % of reading
- Range : 0 % to 21 % O2 for oxidant atmosphere 0 % to 10 % excess combustible for reducing atmosphere
- Power Supply : 230 VAC, 50Hz/ 110 VAC, 50/60 Hz
- Power comsumption : 500 W
- Weight : 19 Kg
- Drift : less than 0.1% of reading
- Display : % O2 - % excess combustible
- Dimensions : 500 mm x 260 mm x 450 mm
- Analogue Output : 4 - 20 mA linear corresponding to: 4 mA : 0 % combustible 20 mA : 21 % oxygen
- Ambient temperature : 10 to 40°C
- Accuracy : +/- 2 % of reading