B&K Precision 9171-9174 - Manual - Manual (Page 87)

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See the setup below:
Note: Two separate variable resistances must be used for the setup.
One for controlling voltage and one for current. Using one for
either voltage or current will not operate correctly. If resistance is
used for voltage, current setting will remain 0. If resistance is
used for current, voltage setting will remain 0.
Follow the steps below to setup the supply for external analog
control:
1. Press , then to enter SYSTEM SETTING.
+ - + -
I V
EXT CTL
Dual channel DIO/Analog Card
Single channel DIO/Analog Card
0 – 5 kΩ 0 – 5 kΩ
Figure 24- External Resistance Control
Menu 1