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SR1 Operation Manual 18
© 2014 Stanford Research Systems
Normally the Unit Display auto-selects the appropriate unit-modifier for the currently displayed value. For
instance 1.2x10
-6
Vrms would be displayed as 1.2 Vrms. There are situations where it might be
desirable to lock the unit-modifier selection. For instance we might want the display to readout as
0.0012 mVrms. To do this, select the appropriate modifier from the right-click menu. Select "Auto" from
the right-click menu to return to normal operation.
The second feature offered by Unit Displays is selected in the bottom half of the right-click menu. In
"Standard" mode, the Unit Display displays each new value that is sent to it . If one of the other modes
are selected, the current value of the display is saved as the "reference" and subsequent updates are
displayed as follows:
Mode Operation
Standard Each update to the Unit Display's value is displayed.Data is displayed in Green .
Max Updates are displayed only if they are greater than the reference value. When the
data exceeds the reference that data becomes the new reference value. Data is
displayed in
Red .
Min Updates are displayed only if they are less than the reference value. When the
data is less than the reference that data becomes the new reference. Data is
displayed in
Blue .
Delta The difference between the update value and the reference value is displayed.
Data is displayed in
Purple .
To reset the reference double-click the display.
Like unit entries, it is possible to see the value represented by a unit display with full double precision by
holding the cursor over the unit display— the double precision value will be shown as a "hint."