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E 10
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Analyzer cell maintenance
Check the flanges
for leaks
The detector must be on for a few minutes before leak
8/8
Edition 03 - May 97
S
YMPTOM AND CAUSE
R
EMEDY
Gross leak
Eliminate the leak :
Check the
torque of the screws on the
analyzer cell and VHS
preamplifier flanges.
If necessary, install the new
metal seals (cell seal and VHS
preamplifier seal).
FILAMENT DOES NOT LIGHT
The filament indicator does
not come on or the alarm
indicator light is on
YES
Run an autocalibration
(see C 30)
Spray helium to leak check the flanges of the analyzer cell
and preamplifier. Eliminate any leaks as describe above.
FILAMENT LIGHT
The filament indicator
is flashing
YES
NO