Default Settings
Appendix D
D-1
Auto Default Function
The Auto-Default computer commands ADF 1 or ADF 2 set the model 7230's
controls as follows:-
Main Display
Displays the AC Gain, full-scale sensitivity, reference phase, time constant,
reference phase and oscillator frequency controls on the left-hand side. On the right-
hand side, the display mode is set to two bar-graphs and two large digital displays,
showing signal magnitude as a percentage of full-scale, X channel and Y channel
outputs in volts and signal phase in degrees.
The twelve basic instrument controls are set to the following values:-
Full-scale sensitivity 200 mV
AC Gain 0 dB
Time constant 100 ms
Oscillator amplitude
ADF 1 200 mV
ADF 0 0 mV
Oscillator frequency 1000.000 Hz
AUX DAC1 output 0.000 V
AUX DAC2 output 0.000 V
AUX DAC3 output 0.000 V
AUX DAC4 output 0.000 V
Ref Phase 0.00°
Phase quadrant 0.00°
X channel output offset 0.00%
Y channel output offset 0.00%
Ref Harmonic 1st
The remaining instrument controls, accessed via the menus, are set as follows:-
Signal Channel
Input coupling AC
Input Shell Ground
Input mode Single-ended voltage mode
Input connector A input connector
Input Device FET
Line notch filter Off
Automatic AC Gain Off
Reference Channel
Reference mode Internal
Reference harmonic 1st
Output Filters
Slope 12 dB/octave
Sync Time Constant ON
Time Constant Mode FAST
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