Ch1 Display And Output - Stanford Research Systems SR810 Manual

Front Panel

CH1 Display and Output

[Display]
OUTPUT OVLD
AUTO
SYNC
[Ratio]
This key selects the Channel 1 display quantity. Channel 1 may display
X, R, X Noise, Aux Input 1 or Aux Input 2. The numeric display has the
units of the input signal. The bar graph is ±full scale sensitivity for X, R
and X Noise, and ±10V for the Aux Inputs. Ratio displays are shown in %
and the bar graph is scaled to ±100%. See the SR810 Basics section for
a complete discussion of scaling.
The OVLD led in the display indicates that the Channel 1 output is
overloaded (greater than 1.09 times full scale). This can occur if the
sensitivity is too low or if the output is expanded such that the output
voltage would exceed 10V.
This indicator is turned while an auto function is in progress.
When the synchronous output filter is selected AND the detection
frequency is below 200 Hz, then the SYNC indicator will be on. If the
detection frequency is above 200 Hz, synchronous filtering is not active
and SYNC is off.
This key selects ratio measurements on Channel 1. The Channel 1
display may show X, R, X Noise, Aux Input 1 or Aux Input 2 divided by
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