Atomic absorption photometer with a safety monitor

Details Atomic absorption photometer with a safety monitor Atomic absorption photometer with a safety monitor

1998-12-15

1999-11-23

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340634, 431 24, G08B 1710

Patent

active

059907983

ABSTRACT:
An atomic absorption photometer includes a microprocessor which is programmed so as to affirmatively create an unsafe condition by lowering the pressure inside the flow route of a combustion improving gas and to check if the gas switch in this flow route indicates this unsafe condition. If it is found that this unsafe condition is not being indicated by the switch, a warning signal is outputted and the use of flame by the photometer is prevented.

REFERENCES:
patent: 4518345 (1985-05-01), Mueller et al.
patent: 4778113 (1988-10-01), Jewett et al.
patent: 4846410 (1989-07-01), Jewett et al.
patent: 5055825 (1991-10-01), Yang
patent: 5207176 (1993-05-01), Morhard et al.
patent: 5522541 (1996-06-01), Zia et al.

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