Model 2400 Service Manual 2-22
Calibration
2400-902-01 (G - Feb 2006)
• Note and record the multimeter reading.
• Send the :CAL:PROT:SOUR command using the multimeter reading as the com-
mand parameter. For example:
:CAL:PROT:SOUR -1.02E-3
Step 4. Program calibration dates
Use the following commands to set the calibration date and calibration due date:
:CAL:PROT:DATE <year>, <month>, <day> (Calibration date)
:CAL:PROT:NDUE <year>, <month>, <day> (Next calibration due date)
Note that the year, month, and day must be separated by commas. The allowable range for the
year is from 1995 to 2094, the month is from 1 to 12, and the day is from 1 to 31.
Step 5. Save calibration constants
Calibration is now complete, so you can store the calibration constants in EEROM by sending
the following command:
:CAL:PROT:SAVE
NOTE Calibration will be temporary unless you send the SAVE command. Also, calibration
data will not be saved if (1) calibration is locked, (2) invalid data exists, or (3) all
steps were not completed.
Step 6. Lock out calibration
To lock out further calibration, send the following command after completing the calibration
procedure:
:CAL:PROT:LOCK
Single-range calibration
Normally, the complete calibration procedure should be performed to ensure that the entire
instrument is properly calibrated. In some instances, however, you may want to calibrate only
certain ranges. To do so, simply complete the entire procedure only for the range(s) to be
calibrated. Keep in mind, however, that you must complete all parameter steps for each source
or sense range. Also, be sure to set calibration dates and save calibration after calibrating the
desired range(s).
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