iL Series User Manual
66
Rev B
California Instruments
Step Action
Display
25.
Press Phase Select to select the next phase and
repeat steps 19 through 24 for phases 2 and 3.
(The phase annunciators indicate which phase is
active.)
Calibrating RMS Current Measurement Values (4801iL only)
26.
Press Shift Calibration, scroll to the CAL CURR
MEAS command, and press Enter
CAL:CURR:MEAS
27.
Press Shift Calibration, scroll to the CAL LEV P1
command, and press Enter to select the first
calibration point
CAL:LEV P1
28.
Press Shift Calibration and scroll to the CAL DATA
command. Wait for DVM reading to stabilize.
Then read DVM and compute the first current value
(DVM reading
÷
shunt resistance). Use the Entry
keypad to enter the first current value.
CAL:DATA 0.00
29.
Press Shift Calibration, scroll to the CAL LEV P1
command, use
↑
and
↓
to scroll to the P2
parameter, and press Enter. This selects the
second calibration point
CAL:LEV P2
30.
Press Shift Calibration and scroll to the CAL DATA
command. Wait for DVM reading to stabilize.
Then read DVM and compute the second current
value (DVM reading
÷
shunt resistance). Use the
Entry keypad to enter the second current value.
CAL:DATA 0.00
Calibrating the Output Impedance (4801iL only)
31.
Connect only the output impedance resistor across
the output of the AC source. Do not connect any
other equipment.
32.
Press Shift Calibration, scroll to the CAL IMP
command, and press Enter.
CAL:IMP
33.
Wait for the power supply to compute the output
impedance calibration constant. The display
returns to Meter mode when the calculation is
complete.
The AC source is now holding the new impedance
calibration constant in RAM.
Saving the Calibration Constants
Storing calibration constants overwrites the existing
ones in nonvolatile memory. If you are not sure you
want to permanently store the new constants, omit
this step. The calibration will then remain
unchanged.
34.
Press Shift Calibration, scroll to the CAL SAVE
command, and press Enter
CAL:SAVE
35.
Press Shift Calibration, select the CAL OFF
command, and press Enter to exit Calibration
mode. *RST and *RCL will also set the calibration
state to OFF.
CAL OFF
Table 42 : Front panel calibration procedure steps
Summary of Contents for 3000iL
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