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4.
PERFORMANCE CHECK
4.1.
GENERAL INFORMATION
WARNING: Before switching on, ensure that the oscilloscope has been installed in accordance with the
instructions outlined in chapter 2 of the operating manual, Installation instructions.
This procedure is intended t o be used for incoming inspection t o determine the acceptability of newly pur-
chased or recently recalibrated instruments.
I t does not check every facet of the instrument's calibration; rather it is concerned primarily with those portions
o f the instrument which are essential t o measurement accuracy and correct operation. Removing the
instrument covers i s not necessary t o perform this procedure. All checks are made from the front panel.
If this test i s started
due t o insufficient warming-up time. To avoid this situation, allow the specified warming-up time.
The performance checks are made with a stable, well-focused, low-intensity display. Unless otherwise noted,
adjust the intensity and trigger-level controls as needed.
Note 1:
A t the start of every check, the controls always occupy the preliminary settings; unless other-
wise stated.
Note 2:
The input voltage has t o be supplied t o the A-input; unless otherwise stated.
Note 3:
Set the TIME/DIV switches t o a suitable position; unless otherwise stated.
few minutes after switching on, bear in mind that test steps may be out of specification,
a
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