Model 2750 Multimeter/Switch System Service Manual Calibration Reference B-15
Calibration Reference
Manufacturing calibration commands
NOTE To perform these steps, manufacturing calibration must be enabled by pressing
and holding the OPEN key while turning on the power. See Section 2.
Three calibration steps are only performed at the factory or when the unit has been
repaired:
:CALibration:PROTected:AC:STEP14 1V AC at 3Hz
:CALibration:PROTected:AC:STEP15 1V AC at 1kHz
:CALibration:PROTected:DC:STEP0 Rear scanner terminal short circuit
:AC:STEP<14|15>
(CALibration:PROTected:AC:STEP<14|15>)
Purpose To program individual AC manufacturing calibration steps.
Format :cal:prot:ac:step14 <Cal_voltage>
:cal:prot:ac:step15 <Cal_frequency>
Parameters <Cal_voltage> = 1 [1V nominal]
<Cal_frequency = 1E3 [1kHz nominal]
Description The :AC:STEP14 and :AC:STEP:15 commands program the two
manufacturing AC calibration steps. The appropriate signal must be
connected to the instrument when programming each step, as summa-
rized by the parameters listed above.
Example :CAL:PROT:AC:STEP14 1 Program AC step 14.
:CAL:PROT:AC:STEP15 1E3 Program AC step 15.
:DC:STEP0
(:CALibration:PROTected:DC:STEP0)
Purpose To perform rear scanner terminal short-circuit calibration.
Format :cal:prot:dc:step0
Parameters None
Description :STEP0 performs the rear scanner terminal short-circuit calibration
step in the manufacturing calibration procedure. Install an extender card
with low-thermal shorts on the output terminals installed in Slot 1 and
select the rear scanner inputs before sending this command.
Example :CAL:PROT:DC:STEP0 Perform rear short-circuit
calibration.
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