Chapter 7 – Operational problems
UM-23100B-U User manual ATEQ F CLASS Page 84/90
1.6. ENVIRONMENT
A measurement may be affected by a variation in background temperature (sun,
draughts, storage of parts outdoors, handling of the test part by the operator, ...).
The dampness of parts may cause errors in the readings (insufficient drying after
washing, outdoor storage, condensation, presence of water in the fixture, ...).
1.7. CALIBRATION
ATEQ does not accept any liability in regard to calibrations and settings to its
instruments which are not carried out by its own personnel.
1.8. C
ONCERNS ABOUT RELIABILITY OF THE INSTRUMENT’S CIRCUITS
If all the other checks do not resolve the problem, the instrument’s circuit may be
checked.
Proceed as follows:
9 Segregate the instrument from its environment (pneumatic assembly),
9 Connect up the instrument (test output),
9 Choose an unused program,
9 Set the parameters as follows:
⇒ the regulator to the test pressure,
⇒ the pressure monitoring thresholds to +/- 20 % of the test pressure,
⇒ wait times A and B 0 seconds,
⇒ fill time 4 seconds,
⇒ stabilisation time 10 seconds,
⇒ test time 10 seconds,
⇒ dump time 1 second,
⇒ reject level maximum,
⇒ unit Pa/sec,
⇒ function all functions cancelled.
Run two consecutive cycles.
The post test time result should not exceed 2 Pa/sec.
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