Specifications

Calibration 3
Series N6700 Service Guide 67
Current Calibration
High Range Programming and Measurement
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 Agilent 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 3 A full-scale range of output 1.
Note that this procedure calibrates both the 3 A and 1 A ranges.
Front Panel:
SCPI Command:
Select System\Admin\Cal\Curr\Iprog
Then select the High range.
CAL:CURR 3
, (@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
Select Next. The information field should
indicate: “Enter P1 measured data”
CAL:LEV P1
*OPC?
Step 4. Calculate the shunt current (I=V/R) and enter the data. This value
may be positive or negative.
Front Panel:
SCPI Command:
Select the Measured Data field. Enter the data
from the external DMM. Press Select when done.
CAL:DATA <data>
Step 5. Select the second current calibration point. Wait a minimum of 5
minutes for the internal temperature to stabilize.
Front Panel:
SCPI Command:
Select Next. “Wait 5 minutes, press Next” should
be displayed. Wait 5 minutes and select Next.
The information field should indicate: “Enter P2
measured data”
CAL:LEV P2
*OPC?
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
SCPI Command:
Select the Measured Data field. Enter the data
from the external DMM. Press Select when done.
CAL:DATA <data>