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Switch on the heater while the turbopump is in op-
eration. In the event of turbopump overheat, the
pump will be automatically cut out by the thermis-
tor sensor.
NOTE
The turbopump must be "baked" only when operat-
ing with an inlet pressure less than 10
with water cooling.
!
CAUTION
If the chamber of the system is "baked" at a high
temperature, a shield should be installed to pre-
vent thermal radiation heating the high vacuum
flange on the pump. The maximum temperature
allowed for the inlet flange is 120° C.
AIR COOLING KIT INSTALLATION
TV 551/701 with Navigator Controller
An air cooling kit (mod. 969-9339) is available to
improve the TV 551/701 cooling during heavy op-
erational conditions (optional).
Fan specifications:
3
− air flow: 200m
/h
− input voltage: 24 Vdc
− dimensions: 127 x 127 x 38 mm (5 x 5 x 1.5 in.)
− power: 4.7 W
The fan bracket is shaped so that it can be
mounted close to the pump.
-4
mbar and
39
TECHNICAL INFORMATION
87-900-934-01(D)
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