Agilent Technologies TV 303 Notice De Mode D'emploi page 257

The Turbo-V303 pump is characterized by its high compression ratio also for oil
NOTE
vapors. When using a mechanical oil-sealed pump, it is advisable to install a
suitable trap between the turbopump and the fore-vacuum pump in order to
prevent oil backstreaming.
Connection C – Electrical
Figure 46
The turbopump is connected to the controller through an 6-pin
connector. Pins B, C and D are the 3-phase supply to the motor, pins
A and F are 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.
TV 303 User Manual / 87-901-019-01 (A)
Technical Information
TV 303 Controller Installation
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