Ametek 7280 Instruction Manual page 67

Chapter 5, FRONT PANEL OPERATION
Figure 5-14, Amplitude Sweep Menu
The Amplitude Sweep menu has eight controls affecting the instrument's internal
oscillator, and one link to the Curve Buffer menu (see section 5.3.22). Changes to the
setting of the controls can be made by using the adjacent keys.
When an amplitude sweep is run, the internal oscillator output starts at the defined
start amplitude and is changed in discrete steps until it reaches the stop amplitude.
Steps are always of equal size, giving a linear relationship of output amplitude to
time. The controls operate as follows:-
OSC AMPLITUDE
This control may be set to any value between 1 mV and 1 V rms. Adjustment is faster
using the Keypad or Active Cursor controls - see section 4.1.04.
START AMPLITUDE
This control defines the start amplitude for the amplitude sweep, which may be set to
any value between 0.000 V rms and 1.000V rms with a 1 mV resolution. Adjustment
is faster using the Keypad or Active Cursor controls - see section 4.1.04.
STOP AMPLITUDE
This control defines the stop amplitude for the amplitude sweep, which may be set to
any value between 0.000 V rms and 1.000V rms with a 1 mV resolution. Adjustment
is faster using the Keypad or Active Cursor controls - see section 4.1.04.
STEP AMPLITUDE
This control defines the amount by which the oscillator amplitude is changed at each
step. It may be set to any value between 0.000 V rms and 1.000V rms with a 1 mV
resolution. Adjustment is faster using the Keypad or Active Cursor controls - see
section 4.1.04.
If Start Amplitude is greater than Stop Amplitude then the oscillator amplitude will
decrease with time.
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