Series 2268 850 Watt DC Power Supplies Reference Manual
Calibration and Troubleshooting
2268S-901-01 Rev. A / January 2015
207
Isolated Current Monitoring Calibration
Important:
For maximum accuracy at a specific APG level, follow the
calibration procedure again but use the intended operating voltage level in steps
3 and 8.
To calibrate the isolated current monitoring:
1.
Short the main output with a shunt. Connect a multimeter to measure the voltage
across the shunt.
2.
Connect the voltmeter to the Isolated monitoring output lines (J3.10 and J3.6).
3.
Set the current APG level to 4 V. The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4.
Set the input source to local for voltage analog programming. the SCPI command
is:
SYST:REM:SOUR:CURR LOC
5.
Set the main output voltage to 100% by sending the command:
SOUR:VOLT<ModelVolt>
or use the rotary Adjust/Enter control.
6.
Turn the main output to On by pressing the OUTPUT ENABLE Main button on
the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7.
Enter the interactive calibration mode by sending the SCPI command:
CAL:MON:CURR:ISOL
8.
Press the terminal keys - or + to reduce or increase the monitoring value. Adjust
the monitoring value displayed on the voltmeter that was set up in Step 1 to read as
close as possible to 4.000 V.
9.
Press any key other than the + or - keys to exit from interactive calibration mode.
Содержание Keithley 2268 Series
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