2 Installing the Instrument
3. When attaching terminal lugs to the bus bars, do not put any washers or other hardware between
the lug and bus bar. Ensure there is enough room for the safety cover. Twist or bundle the load
wires to reduce lead inductance and noise pickup. The goal is to minimize the loop area or physical
space between the + and - output leads from the bus bars to the load.
4. Attach the safety cover to the rear panel. Make sure that you do not pinch the sense wires when
attaching the cover. Note that heavy wiring cables must have some form of strain relief to prevent
bending the safety cover or bus bars.
Tightening torque for the 8.8 mm opening cannot exceed 10.8 Nm (8 lb-ft).
Tightening torque for the 5.5 mm opening cannot exceed 4.8 Nm (3.5 lb-ft).
Ferrite Core Installation - for RP7973A, RP7982A, RP7983A models only
For the applicable units, install the supplied ferrite core to
reduce EMI (electromagnetic interference).
Run each output lead through the core three times. If using
remote sensing (not shown), also run each sense lead
through the core three times.
Place the core as close as possible to the output cover as
shown.
74
Keysight RP7970 & RP7980 Series Operating and Service Guide