SICK GM32 Technical Information

76 GM32 · Technical information · 8011923 · V 1.4 · © SICK AG
Maintenance
Subject to change without notice
5.3 Test gas feeding (for GPP measuring probe)
Fig. 15 Test gas measurement with GPP probe
For GPP measuring probes, a gas check can be carried out with the measuring probe fitted
in the gas duct.
An overpressure is created in the filter frit when gas (zero or test gas) is blown in. If this
overpressure is high enough, the sample gas is forced out of the filter frit and replaced by
the gas blown in.
The zero or test gas concentration in the filter frit is measured and the GM32 adjusted
accordingly.
Fig. 16 Test gas connections on the GPP probe
● The GPP probe has a gas connection for test gas measurement.
● A second connection is available for, for example:
– Pressure measurement
– Sample extraction for comparison measurements
–Filter backflushing
– To increase the amount of test gas available.
Zero gas
Test gases
First connection: Test gas inlet
Second connection

SICK GM32 Specifications

General

Brand	SICK
Model	GM32
Category	Measuring Instruments
Language	English