STP-iS2207 Series Turbomolecular Pump
MT-89E-001-C
Page 140
7
SAFETY FUNCTIONS
Referred
Section
Table 39 - Error List (continued)
Countermeasures
Set the ambient
temperature to 40 °C or
less.
Set the cooling water flow
rate at 3 L/min and cooling
water temperature
15 to 35 ℃.
Set the temperature of the
baking heater to 120 °C or
less.
Always cool the STP pump.
Check the piping system
for leakage.
Repetitious start/stop
operations may cause the
STP pump to overheat.
Probable causes
High ambient temperature.
Insufficient cooling of the
control unit.
Overheating during baking.
Insufficient cooling.
Leakage of the vacuum
piping system.
Repetitive start/stop
operations.
Occurrence
condition
control
Pump operation
ecelerate and
ecelerate and
(Error message)
"FAILURE"
LED
3 flashes
in red