4.4-8 Section 4: Using the Model 9100: AC Voltage Function
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Section 3 Editing Tutorials page 3-6.
4.4.4 Value Editing
4.4.4.1 Output and Deviation
Output, Frequency, Deviation and Phase-Shift values can be changed using 'Digit' and
'Direct' edit facilities as described in Section 3.
Deviation Percentage Values
The effect of introducing a non-zero deviation value is to change all set RMS values of
the output by the fraction expressed by the deviation. A positive deviation will increase,
and a negative deviation will reduce, the output RMS value.
For example:
a. An Output Value of 10V RMS set on the display, will be increased to 10.5V RMS
by a +5% Deviation.
b. An Output Value of 50V RMS set on the display, will be decreased to 45V RMS
by a -10% Deviation.
4.4.4.2 Frequency Editing
Frequency values can be changed using 'Digit' and 'Direct' edit facilities. The editing
processes are not described in Section 3, but follow the same general rules as for editing
voltages.
The resolution of frequency values is set at six significant digits, leading to four frequency
spans of constant resolution.
The thresholds between resolutions of frequency are given in paras 4.4.5.2.
Hardware configurations for frequency change are given in paras 4.4.5.3.
4.4.4.3 'Out of Range'
Any attempt to select a combination of voltage and frequency (including the application
of deviations and/or offsets) outside the constraints of the Volt-Hertz profile will not be
enabled.
An audible warning will be given, accompanied by the screen message: '
Out of range'.
Refer to Sub-section 4.4.6.
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