Rear Panel: Dacs - Ametek 7230 Instruction Manual

Dsp lock-in amplifier
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5.3.17 Rear Panel: DACs

These controls, shown in figure 5-34, are used to configure the signals that will
appear on the four DAC connectors on the rear panel of the instrument. Each control
has a signal selector; if this is set to User setting then the text box below is used to
specify the corresponding voltage; otherwise it is grayed out.
The controls operate as follows:
DAC1, DAC2, DAC3, and DAC4
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)
In this setting the corresponding DAC connector on the rear panel of the
instrument outputs a voltage related to the X1%fs display as follows:-
X1%
+300
+100
0
-100
-300
Y% (2.5V fs)
In this setting the corresponding DAC connector on the rear panel of the
instrument outputs a voltage related to the Y1%fs display as follows:-
Y1%
+300
+100
0
-100
-300
Chapter 5, WEB CONTROL PANEL OPERATION
Figure 5-34, DACs Controls
DAC Voltage
7.5 V
2.5 V
0.0 V
-2.5 V
-7.5 V
DAC Voltage
7.5 V
2.5 V
0.0 V
-2.5 V
-7.5 V
5-33

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