Keysight N6705 Service Manual page 77

Current Calibration
Model N6705 Service Guide
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into
the data field and then select Next. When
calibration is complete, select Close.
High Range Programming and Measurement
The output voltage may go negative at some point during this procedure
on units that have polarity reversal relays (Option 760).
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 full-scale
current (see Cal setup B). Connect the Keysight 3458A DMM 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. The following example
selects the 3 A full-scale range of output 1. Full-scale ranges vary
according to model.
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.
Front Panel:
Enter the calculated value into the data field
and then select Next.
Step 5. Select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected "Enter P2 measured data" should be
displayed.
Calibration 3
SCPI Command:
CAL:DATA <data>
SCPI Command:
CAL:CURR 3
, (@1)
SCPI Command:
CAL:LEV P1
*OPC?
SCPI Command:
CAL:DATA <data>
SCPI Command:
CAL:LEV P2
*OPC?
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