Ulvac DA-41D Instruction Manual page 34

Diaphragm type dry vacuum pump
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Trouble
contents
(1) Performing continuous operation in the
Temperature of
status that absorption gas pressure is high
pump surface is
(2) Absorption gas is high temperature
abnormally high
(higher than room
(3) Abnormal voltage of power source input
temperature
+30℃ (86 degF))
(4) Motor is locked
Cause
24
How to resolve problem
(1) Do not conduct continuous operation in
vicinity of atmospheric pressure
(2) Mount refrigerating machine such as gas
air conditioners at inlet
(3) Adjust voltage fluctuation to lower than
±10%
(4) Refer to pump rotation failure description
Ref.

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This manual is also suitable for:

Da-81sDa-41dkDa-81sk

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