10.4-24
Section 10: Calibrating the Model 9100: DC Current Function
Final Width = 215mm
10.4.5.6
Calibration of Auxiliary DC Current (for Power Option)
Calibration Setup
1. Connections
For the 320mA range connect the 9100 to the Standards DMM as shown in Fig. 10.4.5.3 opposite. If the
DMM has a Remote/Local Guard facility, switch it to Local Guard.
For all other ranges connect the 9100 to the Standards DMM as shown in Fig. 10.4.5.4 opposite. If the DMM
has a Remote/Local Guard facility, it should be switched to Remote Guard when a connection to the shunt's
case can be made. If it does not have a guard facility, there can be no guard lead to the DMM.
Ensure that both instruments are powered on and warmed up.
2. Model 9100
Ensure that the 9100 is in STANDARD CAL mode and then select Power and DC Current by pressing the
front-panel AUX key followed by the softkey sequence
POWER
*
,
W
, ,
CURRENT
.
Refer also to Fig. 10.2.2.
*
This keystroke is only required if one of the oscilloscope calibration options (Option 250 or Option 600) is
fitted.
AUX
CHANNEL
MODE