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Detector operation
C 20
Alcatel - High Vacuum Technology - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Edition 04 - September 97
Starting up evacuation of
the line and the part
The pressure drop is shown on
the display unit.
According to the characteristics
of the test part and therefore
the pressure reached, the unit is
placed in gross leak or fine leak
test mode.
Start a cycle by
pressing on the key
Gross Leak mode:
6 mbar > P > 2.10
-2
mbar
Fine Leak mode:
P < 2.10
-2
mbar
Note: The filament must be lit for a cycle to be started.
Working in Gross Leak
mode
It is possible to preset
the gross leak mode by
pressing the key
It is sometimes preferable
to work in
Gross Leak
mode, in order to reduce
cycle times.