Keysight N6705 Service Manual page 68

3 Calibration
Current Calibration
68
High Range Programming and Measurement - All Models
Do not connect anything to the Sense terminals.
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 full-scale current programming range. The value to program a
range must be the maximum current of the range. This example selects
the 8 A full-scale range of output 1.
For models N6781A, N6782A, and N6784A, select the 3 A range - which
calibrates both the 3 A and 1 A ranges.
Front Panel:
From the Calibration menu, select
Current, High Range Prog and Meas.
Then select Start.
Step 3. Select the first current calibration point.
Front Panel:
The first calibration point is automatically
selected "Enter P1 measured data" should be
displayed.
Step 4. Calculate the shunt current (I=V/R) and enter the data. This value may be
positive or negative.
Front Panel:
Enter the calculated value into the data field
and then select Next.
Step 5. Select the second current calibration point. Wait a minimum of 5 minutes
for the internal temperature to stabilize.
Front Panel:
The second calibration point is automatically
selected "Wait 5 minutes, press Next" should
be displayed. Wait 5 minutes and select
Next. "Enter P2 measured data" should be
displayed.
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field
and then select Next.
SCPI Command:
For N6785A, N6786A
CAL:CURR 8
, (@1)
For N6781A, N6782A, N6784A
CAL:CURR 3
, (@1)
SCPI Command:
CAL:LEV P1
*OPC?
SCPI Command:
CAL:DATA <data>
SCPI Command:
CAL:LEV P2
*OPC?
SCPI Command:
CAL:DATA <data>
Model N6705 Service Guide