ATEQ F580 - Page 120

Chapter 4 – Functions of the instrument
UM-18400E-U ATEQ F580 User manual Page 110/168
The solution is based on the relationship: P1.V1 = P2.V2
If the part is leaking, the final volume will be
greater so the inlet pressure will be weak.
Transfer Time
P1
P2
LARGE LEAK
Internal fill
volume V1 for
the ATEQ
instrument
Pressure
• Test modes
The ATEQ F510 or F520 for sealed components can carry out the following tests:
1. Only the large leak test,
2. The large leak test, then the small leak test at a weaker final pressure
These two modes can be programmed from the instrument's front panel and are called:
•
Large leak mode : Large leak test only,
•
Standard mode : Large leak test, then small leak test.
Standard mode carries out a first cycle to identify large leaks and then adds a second
cycle at nominal pressure to check for small leaks.
Fill Trans Dump
LARGE LEAK MODE
Fill Trans Fill Stab Test Dump
STANDARD MODE
• Carrying out the cycles and settings
So that the instruments can detect large leaks, two learning cycles must be carried out:
one on a good part and one on a bad part.