VACUUM LEAK DETECTOR
VLXE ..
31/10/2019
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7.3.6 Tightness test of the system
(1) Requirements for system tightness is defined in Chap. 6.1.
Determine the testing time for each connected interstitial space
(or the entire monitored system) (calculate it or use the prepared
SGB GmbH test reports).
(2) Connect test measuring instrument to the spout of the three-way
valve 21 and rotate the tap by 180°.
(3) Read off the start vacuum and time and write them down. Let the
test time elapse and determine the vacuum drop.
(4) The test is considered passed when the vacuum does not fall by
more than 1 mbar within the test time.
Of course, a multiple of the test time can be measured, for which
the approved vacuum drop is then also a multiple.
(5) Turn valves back after the test has been carried out and remove
measuring instrument.
7.3.7 Setting up the equipment ready for operation
(1) Check whether all the pneumatic connections are set up correct-
ly.
(2) Check that the three-way valves are in the correct position.
(3) Seal device housing.
(4) Seal shut-off cocks in the open position (between leak detector
and interstitial space) for each connected interstitial space.
(5) Affix plate with details of the support service.
(6) Fill out test report and hand over one copy to the operating com-
pany.
Functional test and maintenance
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