Factory Mainframe Calibration - HP 54753A User Manual

Setup Channel Menu

Factory Mainframe Calibration

Calibration interval
HP recommends that the factory calibration be performed on a periodic basis.
HP designs instruments to meet specifications over the recommended
calibration interval provided that the instrument is operated within the
specified operating environment. To maintain specifications, periodic
recalibrations are necessary. We recommend that the plug-in module be
calibrated at an HP service facility every 12 months. Users are encouraged to
adjust the calibration cycle based on their particular operating environment or
measurement accuracy needs.
Required warm-up time
The instrument requires a 1 hour warm-up period before any of the calibrations
mentioned in this chapter are performed. It is not enough for the instrument to
be in the standby setting. It must be turned on and running for the entire hour.
Remote operation
Remote programming commands for calibrations are included in the
HP 83480A/HP 54750A Programming's Guide. Performing calibrations
remotely is slightly different than the operation of front-panel calibrations.
Factory Mainframe Calibration
Mainframe calibration improves timebase accuracy. All timebase measurements
such as rise time, fall time, and so forth are affected by the timebase accuracy.
The calibration factors are stored in the nonvolatile RAM of the instrument.
There is a switch on the back panel of the instrument that allows the mainframe
calibration to be protected or unprotected. Next to the switch there is a drawing
that shows each switch's function and protected position. Refer to the optional
HP 83480A, 54750A Service Guide for more details about the mainframe
calibration, and the position of the rear-panel memory protect switches.
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