The Rhadox AMS 7800 is designed for the measurement of the residual oxygen concentration of mix gases, fuelgas-/air-mixture for the feed-forward regulation of the burning process and the adjustment of the burner during a commissioning.
The used measuring principle of our residual oxygen analyser is the catalytic oxidiation. The gas / air mixture is fed (flameless) into the catalyst for the complete combustion. Following the combustion the gas mixture is measured by a ZrO2-sensor and the residual oxygen concentration is determined. Our catalyst consists of Pt / Pd, which is evaporated on granulated aluminum oxide. The catalytic reactor is heated to about 400 ° C and regulated.
Technical data
Analyser | AMS 7800 |
---|---|
Working principle | Catalytic oxidazation |
Catalyst | Pt/Pd on granulated Al2O3 |
Measuring principle | ZrO2 sensor with Pt-electrodes |
Measuring range | 0...25 Vol%, adjustable |
Analogue signal port | (0)4…20 mA oder 0…10 V, galvanically isolated |
Reproducability | +/- 2 % of the measuring value |
Gas-Inlet pressure | Gas > 0,1 bar (g), max. 17 bar (g) |
Gas flow | 10…20 l/h |
Pre-heating | Appr. 30 min. |
Catalyst temperature | 380…405°C adjustable |
Gas connection | 6 mm ferrule pack |
Gas sampling | built-in inlet valve |
Power supply | 110 or 230 VAC 50/60 Hz |
Power consumption | 300 VA |
Hi / Low Alarm | Temperature, potential free Relais contact, 24 V / 0,5A |
Dimension wxhxd | 19” / 6HU electronic housing, IP20 |
Version: AMS 7800 V-2019-06 |