ATEQ D520 - Page 47

Chapter 3 – Start-up and adjustments
UM-22100H-U User manual ATEQ D520 Page 37/122
2.3.1. Coupling time
The coupling (also known as wait) times A and B are cycle start parameters.
When there is no automatic connector, the coupling time A is a part of the cycle.
In the event of an instrument with automatic connector the coupling time A allows the
activation of a first connector as soon as the cycle starts and to delay the pressurisation
of the test part. The coupling time B allows the activation of a second automatic
connector. These coupling times ensure a better stabilisation of the seals placed on the
test part.
)Adjust this parameter according to the method described in § 2.3.
2.3.2. Fill time
This is the time taken to pressurise and initialise the flow in the test part.
) Adjust this parameter according to the method described in § 2.3.
2.3.3. Stabilisation time
This time allows the stabilisation of the flow in the part. If the stabilisation time is too
short, parasite flow variations can cause inaccurate readings.
It is therefore recommended to start with a long stabilisation time and to progressively
reduce it until a stable reading of flow can be made.
) Adjust this parameter according to the method described in § 2.3.
2.3.4. Test time
The test time can be a set value or infinite. During all this time the instrument indicates if
the flow in the part measured is between the minimum and maximum reject values.
When the test time is infinite, the fill pressure monitoring is inoperative. It is
therefore necessary to be careful not to apply an excessive pressure to the part being
tested.
) Adjust this parameter according to the method described in § 2.3.
2.3.5. Pressure unit
The different units are: bar, mbar, PSI, Pa, kPa, MPa.
) Adjust this parameter according to the method described in § 2.3.