Cambridge Sensotec Rapidox 1100ZR-H-OL O
2
Analyser Instruction Manual
Version 1.2
37
Last printed 22/07/2015 18:02:00
analyser.
9.12
Using the Cursor
Clicking and holding the left mouse button with the pointer over the ‘
C
’ at the top
of the plot area activates the cursor, which appears as a vertical dashed line on the
plot. While keeping the mouse button pressed, you can now move the pointer
anywhere in the plot area or on the ‘
C
’ in order to move the cursor. The box
labelled ‘Cursor’ to the upper right of the graph window will display actual values
for oxygen, temperature, time and the data point number (n) at or immediately to
the left of the cursor position. The cursor can be used to investigate actual data
values at specific points of interest on the graph.
9.13
Zooming
You can zoom in to any part of the oxygen plot by simply placing the mouse
pointer on the new graph start position and then clicking and dragging a new box
to re-size the graph. The label on the box to the upper left of the graph window
will change to ‘Zoom box co-ordinates’, and an extra set of co-ordinates, labelled
X2 and Y2, will appear, showing the co-ordinates in X and Y units of the second
corner of the zoom rectangle as you drag the mouse pointer. The plot will zoom
and auto-scale when you release the mouse button. This can be repeated if you
wish to zoom in even further. To zoom back to the original size select ‘Zoom Full’
from the View menu.
Note that although you can use the zoom facility during a live run, the graph will
auto-scale to full size with each new data point.
9.14
Y-Axis Graph Units
You can toggle the Y1 oxygen units at any time from percent to ppm and vice
versa. Select ‘O
2
Units’ from the View menu and chose either percent or ppm.
The current selection is then displayed in the top right box labelled ‘O
2
Axis’.
9.15
Oxygen Scale
You can display the Y1 oxygen axis in linear or logarithmic format at any time by
selecting ‘O
2
Scale’ from the view menu. The current selection is then displayed in
the top right box labelled ‘O
2
Axis’. Note that the zoom function is disabled when
you are viewing on a log scale.
9.16
Second Y Axis
The secondary Y axis located on the right hand side of the graph can be used to