Connection Configurations; Connection C - Electrical - Varian Turbo-V 81-T Notice De Mode D'emploi

Connection configurations

Co nection B - FORE-VACUUM PUM n
A flange KF 16 N W is available to connect the
Turbo-V 81-T pump to the fore-vacuum pu
hose or vacuum approved pipe can be used. If a
rigid pipe is used, any vibration g
mechanical pump must b
use of bellows.
NOTE
The Turbo-V 81-T pum p is characterized by its
high compression ratio also for oil vapors. When
using a mechanical oil-sealed pump, it is advisable
to install a suitable trap between the
and the fore-vacuum pump in ord
backstreaming.
P
mp. A
enerated by the
e eliminated through the
turbopump
er to prevent oil

Connection C - ELECTRICAL

The turbopump is connected to the controller
through an 6-pin connector. Pins B, C and D are
the 3-phase supply to
connected to the temperature sensor (NTC type,
30 KΩ resistance at 25° C) and pin E is connected
to the pump ground.
If the temperature sensor is disconnected, the
pump will not start. To prevent damage to the
pump when the temperature exceeds 60° C, the
sensor automatically cuts out the power supply.
63
TECHNICAL INFORMATION
the motor, pins A and F are
87-900-984-01(B)