4.6-8 Section 4: Using the Model 9100: AC Current Function
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Section 3 Editing Tutorials.
4.6.4.1 Output and Deviation
Output and Deviation 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 10A RMS set on the display, will be increased to 10.5A RMS
by a +5% Deviation.
b. An Output Value of 50mA RMS set on the display, will be decreased to 45mA
RMS by a -10% Deviation.
4.6.4.2 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
Currents.
The resolution of frequency values is set at six significant digits, leading to three
frequency spans of constant resolution.
The thresholds between resolutions of frequency are given in paras 4.6.5.2.
Hardware configurations for frequency change are given in paras 4.6.5.3.
4.6.4.3 'Out of Range'
Any attempt to select a combination of current and frequency (including the application
of deviations and/or offsets) outside the constraints of the Amp-Hertz profile will not be
enabled.
An audible warning will be given, accompanied by the screen message: '
Out of range'.
Refer to Sub-section 4.6.7.
4.6.4 Value Editing
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