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The test sequence is structured as follows:
Pressurization
Sartocheck
®
3 plus adjusts the pressure to the pre-programmed test pressure.
After a short waiting period during which the system is tested for major leakage,
the program goes into the stabilization phase.
Stabilization Phase
During the stabilization phase, the test pressure is adjusted to the exactly desired
value. Fluctuations in test pressure occur as a result of cartridge compaction and
temperature variations created by the different filter housing temperatures and
the downstream air flowing in from the compressed air supply.
These fluctuations in test pressure are compensated for during stabilization.
About half of the stabilization time is utilized to carry out volume measurement
(when volume measurement is selected).
Test Phase
In the test phase, the system is in a closed state, i.e. no compressed air is pumped
into the filter housing. This means that no medium (compressed air) or energy
is exchanged (temperature air from the compressed air supply) with the ambient
environment. The pressure drop resulting from diffusion is measured over the test
time entered.
Volume Measurement
The display shows a clock when the volume measurement is performed.
Fig. 7-13 | Test: Pressurization
Fig. 7-14 | Stabilization
Fig. 7-15 | Volume measurement
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