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Title
Schaltungsanordnung zur Betriebsueberwachung eines Flammenionisations-Detektors und Verfahren hierfuer
Date Issued
1992
Author(s)
Helmig, D.
Schwarzer, N.
Steinhanses, J.
Patent No
1990-4011301
Abstract
The invention relates to a switch setup for the monitoring of the flame of a flame ionization detector for gas chromatographs. According to the invention, the detector voltage of the flame ionization detector passes via an amplifier to a comparator and, depending on an evaluation result produced by the comparator, is routed via a timer to a switching unit to end an automatic sample injection in case the detector voltage drops below the voltage threshold value for a specific period of time. The invention can be used for gas chromatography equipment.
Language
de
Patenprio
DE 1990-4011301 A: 19900406