Continuous monitoring of a gas mixture

Details Continuous monitoring of a gas mixture Continuous monitoring of a gas mixture

1988-06-02

1990-01-30

Raevis, Robert R.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

340632, G01N 3100

Patent

active

048965260

ABSTRACT:
A method and an apparatus for the continuous monitoring of a gas mixture which contains explosive gases, for example in drying furnaces of painting or coating plants, with the concentration of the gas mixture being at an adequate distance from the so-called lower explosion limit includes the monitoring by means of flame ionization detectors. On occurrence of a fault an alarm display is actuated and firstly the respective flame ionization detector itself is checked and if necessary recalibrated. If the alarm persists after this recalibration, suitable steps must be taken in the plant itself, for example fresh air can be blown into the plant or the latter can be shut off.

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