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Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
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D 20
Edition 04 - September 97
General troubleshooting guide
These checks must be performed with the detector isolated from all installations
and supplied with the correct electrical power.
It is assumed that the connection and the electrical continuities have been
checked beforehand.
Note: the troubleshooting guide follows a chronological order and a methodology which
is the result of the experience of Alcatel CIT Customer Service. It is therefore recommended
to follow this order so as to locate faults effectively.
Symptoms (detector inlet port blanked off)
Problems at start-up
The roughing pump does not start (no noise) . . . . . . . . . . . . . . . . . . . . .
The by-pass indicator light does not come on . . . . . . . . . . . . . . . . . . . .
The MDP fault indicator light is on . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No display on the control panel MDP part . . . . . . . . . . . . . . . . . . . . . .
No display on the remote control and the control panel . . . . . . . . . . . . .
The TURBO "P" indicator light does not come on after 2 min . . . . . . . . . .
The TURBO " " acceleration indicator light does not come on . . . . . . . . .
The TURBO "!" fault indicator light is on . . . . . . . . . . . . . . . . . . . . . . . .
The
filament on indicator light does not come on . . . . . . . . . . . .
The
filament on indicator light is flashing . . . . . . . . . . . . . . . . . .
The "!" "spectro" alarm indicator light comes on . . . . . . . . . . . . . . . . . . .
No inlet pressure display (P(mbar) display) . . . . . . . . . . . . . . . . . . . . . .
Autocalibration failed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D - 30
D - 30
D - 30
D - 30
D - 40
D - 50
D - 50
D - 50
D - 60
D - 60
D - 60
D - 70
D - 90