10 µA Measurement Range - Models N6781A, N6782A, N6784A
Step 1. Connect the Keysight 3458A in series with a 1 MΩ resistor to the output (see Equipment
Required and Cal Setup D). Set the Keysight 3458A to measure current using the 100 μA range (no
autoranging). The remote command to do this is “DCI 100e-6”.
Step 2. Select the 10 μA measurement range of output 1.
Front Panel Menu Reference SCPI Command
Select System\Admin\Cal\Curr\Imeas
Select the Low3 range. Then press Next.
CAL:CURR:MEAS 0.00001, (@1)
Step 3. Select the first current calibration point and enter the data.
Front Panel Menu Reference SCPI Command
Display shows: “Enter P1 measured data” Measure the current with the Keysight
3458A and enter the data.
Press Select when done.
CAL:LEV P1
*OPC?
CAL:DATA <data>
Step 4. Select the second current calibration point for the negative range and enter the data. The
value should be negative.
Front Panel Menu Reference SCPI Command
Display shows: “Enter P2 measured data”
Measure the current with the Keysight 3458A and enter the data. Press Select
when done.
CAL:LEV P2
*OPC?
CAL:DATA <data>
Current Limit - All Models
This calibrates the POSITVE current limit for Models N6781A, N6782A, and N6784A.
It calibrates the NEGATIVE current limit for Models N6785A and N6786A.
Step 1. Connect a precision shunt resistor to the output. The shunt resistor should be able to measure
at least 120% of the output’s rated full-scale current (see Cal Setup B). Connect the Keysight 3458A
across the shunt resistor.
Step 2. Select the 3 A current limit of output 1 for models N6781A, N6782A, and N6784A. Select the -
8A current limit of output 1 for models N6785A and N6786A.
Front Panel Menu Reference SCPI Command
Select System\Admin\Cal\Curr\Ilim For N6781A, N6782A, N6784A:
CAL:CURR:LIM:POS 3, (@1)
For N6785A, N6786A:
CAL:CURR:LIM:NEG -8, (@1)
Step 3. Select the first current calibration point and enter the data.
Keysight N6700C Operating and Service Guide 367
6 Verification and Calibration
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