RHADOX 7800 Gas Analyzer

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