Omicron Lab CT Analyzer User Manual page 117

The CT Analyzer Test Cards
Switches off the display of values on the bottom right of the diagram.
If you have switched off the values, this soft key changes to Text On
to switch the values display on again.
Closes the excitation graph and brings you back to the Excitation
card.
Moves the cursor to the knee point on the graph according to the
selected standard.
If two or more knee points could be found on the graph, this soft key
is alternately labelled Knee Point 1 or Knee Point 2, depending on
which knee point the cursor is actually positioned to. By pressing the
soft key you can switch between knee point 1 and knee point 2.
After opening the excitation graph, the cursor shows the topmost
knee point (knee point 1) and the soft key is labelled Knee Point 2.
Moves the cursor to the knee point on the reference graph. This soft
key is only available if a reference graph is loaded.
If the reference graph loaded has two or more knee points, this soft
key is alternately labelled Ref. Knee Point 1 or Ref. Knee Point 2,
depending on which knee point the cursor is actually positioned to.
By pressing the soft key you can switch between knee point 1 and
knee point 2.
After loading the reference graph, the cursor shows the topmost
knee point (knee point 1) and the soft key is labelled
Ref. Knee Point 2.
Opens the file system card to select a previous test in order to load
the excitation curve of this test as a reference curve and compare it
with the current one.
The reference curve is displayed as a dotted line in addition to the
excitation curve of the actual test. If a reference curve is loaded, the
values V , I and L are displayed in addition to the measured
ref ref ref
values.
Switches off the reference curve from the display. If you have
switched off the reference curve, the soft key changes to Ref. On to
switch the reference curve on again.
This soft key is only available if a reference curve has been loaded.
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