Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1986-10-17
1988-02-02
Noland, Tom
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
G01N 3700
Patent
active
047222174
ABSTRACT:
A method and means is disclosed for carrying out the calibration of a gas monitor. The calibration is effected by providing a calibration gas containing a precise amount of the constituent that is measured by the gas monitor. That calibration gas is introduced into the gas monitor and passes therethrough in a closed system such that leakage of calibration gas to the surrounding environment at the inlet to the gas monitor and from the outlet of the monitor is prevented. The calibration gas is further stalled in the gas sensor chamber of the gas monitor for the operator to make necessary adjustments to the gas monitor at no flow conditions of the calibration gas.
REFERENCES:
patent: 4257439 (1981-03-01), Mayeaux
patent: 4262522 (1981-04-01), Reich
patent: 4489590 (1984-12-01), Hadden
patent: 4534204 (1985-08-01), Bergquist
patent: 4578986 (1986-04-01), Navorre
Arnett David W.
Gedeon Andras
Hamilton Carl
Reichert Julie A.
Cassett Larry R.
Noland Tom
Rathbun Roger M.
The BOC Group Inc.
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