Ulvac DTU-20 Series Instruction Manual page 31

High vacuum 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
abnormally high
(higher than room
(2) Absorption gas is high temperature
temperature
+30℃ (86 degF))
(3) Abnormal voltage of power source input
(4) Motor is locked
Cause
18
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
Refer
ence

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This manual is also suitable for:

Dtu-20aDtu-20bDtu-20cDtu-20dDtu-20e

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