Agilent Technologies 9698905, User Manual

Page: 225 / 234

Technical Information
Typical Layout Diagram
17
Turbo-V 81-T User Manual / 87-900-984-01 (G ) 225/234
Connection B - Fore-Vacuum Pump
A flange KF 16 NW is available to connect the Turbo-V 81-T pump to
the fore-vacuum pump. A hose or vacuum approved pipe can be used.
If a rigid pipe is used, any vibration generated by the mechanical
pump must be eliminated through the use of bellows.
NOTE
The Turbo-V 81-T pump 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 turbopump and the fore-vacuum pump in order to
prevent oil backstreaming.
Connection C - Electrical
Figure 34
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, pin E
is connected to the pump ground, pins A and F reserved for Agilent.
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.