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The by-pass
indicator light
does never come on
MDP
OK
2/3
D 30
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Problem with the roughing pump
Edition 04 - September 97
S
YMPTOM
C
AUSE
R
EMEDY
Check the power supply
voltage, stop the detector
and restart the CP20 pump
CP20 pump has
stopped during cycle
(ASM 180 TD+)
(ASM 181 TD+)
Contact customer service
Change PI3 inlet gauge
(
See D 70
)
PI3 inlet gauge is defective
When inlet port is Patm no
inlet pressure display
NO
Supervisor electronic board
Wrong setting of supervisor
board
Contact customer service
NO
Contact customer service
NO
Power supply voltage
is less than the minimum
allowed, the pump turns into
safe