High Performance Oscilloscope Calibrator
Standard Calibration — Basic Sequences
93
Note
The extent to which the target value can be changed from the default value
is limited. In our example at 1.0000 mV, the target cannot be set above
1.0700 mV, nor below 0.9300 mV. Beyond these limits the error message
'Outside amplitude range' is given.
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Press the SAVE TARGET soft key to record the change. A message will appear
'TARGET SAVED'.
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You can check that the change has been recorded by pressing EXIT to return to
the Target Selection screen, where the different value will have appeared against
that saved target (unless the DEFAULT TARGETS key is highlighted). If default
targets remain selected, then they will not have changed, merely press the
DEFAULT TARGETS key to return to saved targets to note the change in saved
target value.
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Returning to the Adjustment screen by pressing the same target soft key, it can be
seen that the 9500B O/P Amplitude has also changed to the saved value in
preparation for adjustment.
Calibrating the Model 9500B at Target Values
Adjust Output Amplitude
Once the target value is as required, the next step is to set up the external circuit so that
the output can be measured by a suitable external Standard.
To calibrate at the target value, use the Adjustment screen:
erw226
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Ensure that the Output is OFF.
