Low Range Current Programming and Measurement
Step 1. Keep the power supply, shunt resistor, and precision voltmeter as described under "High
Range Programming and Measurement" connected to the load module. Turn on the output of the
power supply.
Step 2. Select the low-current programming range. The value to program a range must be the
maximum current of the range. This example selects the 2 A programming range of output 1. Low
ranges vary according to model.
Front Panel Menu Reference SCPI Command
Select System\Admin\Cal\Curr\Iprog|
Select the Low range. Then press Next.
CAL:CURR: 2, (@1)
Step 3. Select the first current calibration point. Wait a minimum of 5 minutes for the temperature to
stabilize before measuring the input current and entering the data.
Front Panel Menu Reference SCPI Command
Display shows: “Enter P1 measured data”
Calculate the shunt current (I=V/R) and enter the data.
Press Select when done.
CAL:LEV P1
*OPC?
CAL:DATA <data>
Step 4. Select the second current calibration point and enter the data. Wait a minimum of 5 minutes
for the temperature to stabilize before measuring the input current and entering the data.
Front Panel Menu Reference SCPI Command
Wait5 minutes and selectNext.
Display shows: “Enter P2 measured data”Calculate the shunt current (I=V/R)
and enter the data.
Press Select when done. Press Next to finish calibration.
CAL:LEV P2
*OPC?
CAL:DATA <data>
Current Limit Programming
Step 1. • Connect an external power supply to the module's input terminals configured to source 3 V
with a current limit of 21 A (42 A for N6792A). Connect a precision current shunt resistor in series with
the unit's input and a precision voltmeter to measure the voltage across the shunt. The shunt resistor
should be suitable for measuring current corresponding to 120% of the rated current of the load
module's high current programming range (see Cal Setup H). Turn on the output of the power supply.
Step 2. Select the full-scale current programming range. The value to program a range must be the
maximum current of the range. The following example selects the 20 A full-scale range of output 1.
Full-scale ranges vary according to model.
Front Panel Menu Reference SCPI Command
Select System\Admin\Cal\Curr\Ilim
Select the High range. Then press Next.
CAL:CURR:LIM:POS 20, (@1)
Keysight N6700C Operating and Service Guide 375
6 Verification and Calibration
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