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17-20
Programming calibration dates
Program the present calibration date and calibration due date by sending the following
commands:
:CAL:PROT:DATE <yyyy>, <mm>, <dd>
:CAL:PROT:NDUE <yyyy>, <mm>, <dd>
For example, the following commands assume calibration dates of 3/15/2002 and
3/15/2003 respectively:
:CAL:PROT:DATE 2002, 3, 15
:CAL:PROT:NDUE 2003, 3, 15
Saving calibration constants
After completing the calibration procedure, send the following command to save the new
calibration constants:
:CAL:PROT:SAVE
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Locking out calibration
After saving calibration, send the following command to lock out calibration:
:CAL:PROT:LOCK
Manufacturing calibration
The manufacturing calibration procedure is normally performed only at the factory, but the
necessary steps are included here in case the unit is repaired and requires these calibration
procedures.
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Firmware revision level
The manufacturing calibration procedure depends on the firmware revision level, either
revision A03 and lower or revision A04 and higher. The instrument displays the firmware
revision as part of the power-up cycle. Be sure to use the correct procedure as outlined
below.
Model 2790 SourceMeter
Calibration constants will not be saved unless the :CAL:PROT:SAVE command
is sent.
If the unit has been repaired, the entire comprehensive calibration procedure
should also be performed in addition to the manufacturing calibration
procedure.
®
Switch System Reference Manual
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