Factory Mainframe Calibrations; Factory Calibration Summary - Agilent Technologies 54751A Manual

Factory Mainframe Calibrations

Mainframe calibration (performed at the factory) improves timebase accuracy.
All timebase measurements such as rise time, fall time, eye width, jitter,
and so forth are a ected 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
Agilent 83480A, 54750A Service Guide
calibration, and the position of the rear-panel memory protect switches.
Calibration
Mainframe Calibration
To prevent access to the mainframe calibration switch, place a sticker over
C A U T I O N
the access hole to this switch.
Do not attempt a Mainframe calibration without consulting the
C A U T I O N
83480A, 54750A Service Guide
A mainframe calibration should be performed on a periodic basis, annually,
or when the ambient operating temperature has changed by and remains
5

calibration was performed. To see how much the operating temperature
has changed since the last mainframe calibration and the date of the last
mainframe calibration, check the Calibration status by pressing the following
key sequence:
3-4
Table 3-1. Factory Calibration Summary
What is calibrated Measurements
Accuracy and All time base
continuity of the measurements such
timescale as rise time, fall time,
eye width, and jitter.
C di erent than the operating temperature at which the last mainframe
, NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Calibrate
4 Utility 5
FINAL TRIM SIZE : 7.5 in x 9.0 in
for more details about the mainframe
Recommended
A ected Interval
Annually at Agilent
Technologies service
center or if operating
temp has changed
and remains 5 C or

more from calibration
temperature. See
service manual.
.
, and then NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Cal status
Softkey Path
Utility
4 5
FFFFFFFFFFFFFFFFFFFFFFFFFF
Calibrate
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Calibrate frame
Agilent
on.