Thermo Scientific 7452 Operating And Maintenance Manual page 95

Section 10
PC Interface Software
User Control Definitions
(continued)
10-12 7007452 CryoMed Freezer
• Time/Temperature Division pull-down menus are as follows:
a. Temperature divisions may be chosen by clicking the down arrow
to select 20/10/5/2/1°C per division.
b. Time divisions may be chosen by clicking the down arrow to select
20/10/5/2/1/0.5/0.1 minutes per division.
• The Program Listing pull-down menu shows all the steps in the current
profile. A check mark indicates the step that is currently running. This
menu can be used to manually move the freezer to a different step
(forward or backward). Select the step destination. It turns yellow to
indicate the change is not yet complete. When a different step is
selected, the 'Start' button changes to 'Move to'. Select it to execute the
move. The selected step turns white to show the move is complete and
the new step is running.
To start a Run at any step after the first step, choose the step to begin.
Then select the 'Start' button to begin the run. The step turns white to
show the change is complete. The Run starts at the chosen step.
• Chamber/Sample temperature window indicates these temperatures at
a chosen point on the graph. To choose a point on the graph, first
place the mouse pointer on the default cursor position (left side of the
on-screen graph /yellow vertical line). Press and hold the left mouse
button and drag the curser to the desired point on the graph.
• Graph legend selection box includes the legend which shows the
colors/plot styles of the on-screen plot lines. A variety of colors/styles
may be selected for the current window only. The default colors are
listed in the Options/Plot Colors window. Any changes made are in
effect for the current window only.
To change the color/pattern, click the plot line to be changed within
the graph legend box. Select the Color, Line Style or Line Width from
the pull-down menu. An on screen plot line may be rendered invisible
by selecting a color that matches the on-screen background color. A
white color will make the plot line invisible on color print-out.
• Scroll the Graph from side-to-side, using the right/left arrow buttons.
Use the up/down arrow buttons to scroll the graph top-to-bottom.
Turn Auto-Scroll off to view a portion of the graph off-screen from the
current plot position.
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