NI PXI-4070 Calibration Procedure
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ni.com
How Often Should You Calibrate?
The accuracy requirements of your measurement application determine
how often you should calibrate the NI 4070. NI recommends performing a
complete calibration at least once every two years. NI does not guarantee
the absolute accuracy of the NI 4070 beyond this two year calibration
interval. You can shorten the calibration interval based on the demands of
your application.
What Calibration Options Are Available?
Depending on your measurement and accuracy requirements, a complete
calibration of the NI 4070 may not be necessary. A number of options are
available that can shorten the time you spend on the calibration. The
following options are available:
•
Complete calibration—Performing the entire calibration procedure
from beginning to end is the only way to guarantee that the
performance of the NI 4070 will meet or exceed the published
specifications for all modes and ranges.
•
Complete calibration except AC voltage modes—If you do not use the
AC voltage modes for any measurements or the accuracy is irrelevant,
you have the option to skip these steps in the calibration procedure.
•
Complete calibration except current modes—If you do not use the
current modes (neither DC nor AC) or the accuracy is insignificant for
your application, you have the option to skip the steps to calibrate both
current modes.
•
Complete calibration except AC voltage and current modes—You can
choose to skip both the AC voltage modes calibration and the current
modes calibration if your application does not require them or the
accuracy is irrelevant.
How Much Time Does Calibration Require?
The amount of time required for calibrating varies depending on whether
you are running in automated mode or in manual mode. In automated
mode, the complete verification procedures for the NI 4070 take less than
30 minutes, and the complete adjustment procedures take approximately
50 minutes. If you choose to run the calibration in manual mode, the
process requires more time and is more prone to operator error. NI
recommends using an automated procedure, such as the procedures
available with National Instruments Calibration Executive software.
For more information on calibration, visit
ni.com/calibration
.
