Automatic calibration and control system for a combined oxygen a

Details Automatic calibration and control system for a combined oxygen a Automatic calibration and control system for a combined oxygen a

1986-04-21

1989-08-01

Raevis, Robert R.

Measuring and testing

Instrument proving or calibrating

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

G01N 3100

Patent

active

048523844

ABSTRACT:
An automatic calibration and control system for a combined oxygen and combustibles analyzer comprises a process control computer which automatically calibrates a combined oxygen and combustibles analyzer. The computer initiates a calibration sequence through a mechanical unit which introduces calibration gases to the analyzer. The computer calculates a drift adjustment for both oxygen and combustibles and applies it to the incoming oxygen and combustibles signal from the analyzer to arrive at calibrated oxygen and combustibles signals. The system allows both oxygen and combustibles signals to be calibrated automatically and concurrently with minimal operator interface.

REFERENCES:
patent: 3070988 (1963-01-01), Kapff et al.
patent: 3359784 (1967-12-01), Jorre et al.
patent: 3924442 (1975-12-01), Kerho et al.
patent: 4445359 (1984-05-01), Smith
patent: 4476706 (1984-10-01), Hadden et al.
patent: 4555930 (1985-12-01), Leach et al.
patent: 4578986 (1986-04-01), Navarre

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