Ametek 7270 - Page 99

Chapter 5, FRONT PANEL OPERATION
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hand side of the screen is set to USER DAC.
DAC1 SETUP, DAC2 SETUP, DAC3 SETUP, and DAC4 SETUP
These four controls select which signal will be made available at the corresponding
DAC 1 to DAC 4 connectors on the rear panel of the instrument. The following
settings are available, but note that internal connection limitations mean that not all
settings are available for each DAC connector.
X% (2.5V fs)
When set to X% the corresponding DAC connector on the rear panel of the
instrument outputs a voltage related to the X%fs front panel display as follows:-
X% DAC Voltage
+300 7.5 V
+100 2.5 V
0 0.0 V
-100 -2.5 V
-300 -7.5 V
Y% (2.5V fs)
When set to Y1% the corresponding DAC connector on the rear panel of the
instrument outputs a voltage related to the Y%fs front panel display as follows:-
Y% DAC Voltage
+300 7.5 V
+100 2.5 V
0 0.0 V
-100 -2.5 V
-300 -7.5 V
MAG% (2.5V fs)
When set to MAG% the corresponding DAC connector on the rear panel of the
instrument outputs a voltage related to the MAG%fs or R% front panel displays
as follows:-
MAG%fs DAC Voltage
+300 7.5 V
+100 2.5 V
0 0.0 V
PHASE (+9 V = +180°)
When in this setting the corresponding DAC connector on the rear panel of the
instrument outputs a voltage related to the PHA or  front panel displays as
follows:-
PHA or  deg DAC Voltage
+180 9.0 V
+90 4.5 V
0 0.0 V
-90 -4.5 V
-180 -9.0 V
NOISE (2.5V fs)
When set to NOISE the corresponding DAC connector on the rear panel of the
instrument outputs a voltage related to the N%fs front panel display as follows:-