Toxic gas detection system calibrator

Details Toxic gas detection system calibrator Toxic gas detection system calibrator

1982-11-10

1985-01-22

Kreitman, Stephen A.

Measuring and testing

Instrument proving or calibrating

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

204406, G01N 2726

Patent

active

044943997

ABSTRACT:
An arrangement is provided for the simplified and rapid recalibration of electrochemical toxic gas detectors. Periodically, a single untrained operator may temporarily operate the system of the invention for adjusting the "span" and "zero" settings on the sensor, make two adjustments until he obtains a signal, such as a light signal, in order to obtain recalibration. The arrangement allows the use of untrained personnel to make otherwise technical adjustments in remote regions where gas detectors may be utilized. The system of the invention may be located at the sensing head of the toxic gas sensor or at the controller thereof.

REFERENCES:
patent: 3776832 (1973-12-01), Oswin et al.
patent: 3824167 (1974-07-01), Oswin et al.
patent: 3992267 (1976-11-01), Oswin et al.
patent: 4001103 (1977-01-01), Blurton et al.
patent: 4094186 (1978-06-01), Wessel
patent: 4150495 (1979-04-01), Stern
patent: 4151738 (1979-05-01), Hyer et al.
patent: 4399684 (1983-08-01), Advani et al.

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