Chapter 3 – Start-up and settings
UM-18400E-U ATEQ F580 User manual Page 47/168
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PARAMETERS
TYPE : LEAK TEST
COUPLING A : 02.0 s
FILL : 01.0 s
STABILISATION : 00.5 s
TEST : 01.0 s
DUMP : 00.5 s
PRESSURE UNIT : bar
Max. FILL : 10.0 bar
Min. FILL : 0.000 bar
15:50:15 20/08/2002
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PARAMETERS
PARAMETERS
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4.4.1. Coupling time
Coupling times A and B are start of cycle parameters. If there is no automatic
connector, Coupling time A is part of the cycle.
If an instrument is fitted with an automatic connector, Coupling time A delays the
pressurisation of the test part by allowing the activation of a first cycle connector at the
test start. Coupling time B allows the activation of a second automatic connector. These
Coupling times ensure better stabilisation of the seals placed on the test part.
)Set this parameter using the method described in § 4.4.
4.4.2. Fill time
This is the time allowed for the pressurisation of the part to be tested. It must not be too
long (waste of time) or too short (the pressure in the component is at risk of not being
sufficient due to drops in pressure caused by temperature changes).
To determine the appropriate fill time, it is necessary to set the Fill Time in order to
make it Too Long (TTLR), then to shorten it until a drop in pressure occurs due to
thermal effects.
Determine the TTLR by using the following formula:
4
mbar in pressure test x cm in volumeTTLR
3
=
9 Carry out a cycle. When the instrument switches to the stabilisation period, the
pressure must remain stable.
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