Agilent Technologies X3500-64000 Mode D'emploi page 270

17 Technical Information
Interconnections
Interconnections
The following figure shows the TwisTorr 304 FS interconnections.
Figure 32
Earth (Ground) Connection
We recommend that you fit a separate earth (ground) conductor to
the TwisTorr 304 FS. Use a separate insulated green/yellow
conductor, and use a M5 x 10 screw and shake proof washer (fitted to
the earth hole on the pump) to secure the earth conductor to the
pump. The screw must be fixed with a 2 Nm torque.
The impedance between the pump-body and the earth connection
point must be < 0.1 Ω.
270/304 TwisTorr 304 FS User Manual / 87-901-027-01(B)