Ametek 7270 Instruction Manual page 138

Dsp lock-in amplifier
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Chapter 5, FRONT PANEL OPERATION
5-90
If using external reference mode, use the Reference Channel menu to select one of
the four external inputs, and connect the reference signal to the correct connector.
Auto-Measure
Use the Auto-Measure function on the Auto Functions menu to set the instrument so
that it is correctly displaying the signal.
Other Adjustments
Use the center right-hand
format required, and the upper and lower right-hand
allocated to the four display positions. The four user-selected Main Display controls
can be chosen using the Select Control key. If the analog outputs of the instrument
are to be used, use the DAC menu to specify what the output signals at the DAC 1 to
DAC 4 connectors on the rear panel of the instrument should represent.
key on the Main Display to select the display
keys to select the outputs

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