STP-iXA3306 Series Turbomolecular Pump
1. Remove external vibration
so as no
t to transmit it to
the STP pump.
2. Check the vacuum piping.
3. Install the STP pump in a
way that no foreign
materials fall into the STP
pump.
4. Perform roughing vacuum
through bypass root.
1. Use the maximum working
pressure or less.
2. Use
the allowable backing
pressure or less.
3. Check the vacuum piping
system for leakage.
4. Check th
e backing
-pump
for its capacity and START
state
.
(use a
backing
-pump
with
the recommended capacity
or more)
Excessive vibration applied
externally
to the STP pump:
1. External vibration/impact
.
2. Atmospheric air flows
into
the STP pump
.
3. Foreign materials fall into
the STP pump
.
4. Sudden pressure change
at start of
roughing
vacuum by backing
-pump
.
Abnormal magnetic bearing:
1. Control circuit error.
2. Disconnec
tion of the
internal wiring
.
1. High pressure at the inlet
port
.
2. High pressure at the outlet
port
.
3. Leakage of the piping
system
.
4. Failure of the
backing
-pump
.
Acceleration
state
continues for
approx.
30
minutes
Disturbance Y_H
Disturbance X_B
Disturbance Y_B
Disturbance Z