Thermo 335904, Руководство оператора, Страница: 50 / 94

1. With the Kinetics test parameters displayed on
the screen, press Run Test .
2. If you have a 6-position cell holder, place the
blank in position B and the unknown in position
#1. Press
Measure Sample to measure the
blank and the unknown. When the instrument
completes the measurement, the kinetics data
and rate appear on the screen.
3. If you have 1-position cell holder, press
Measure Blank to measure the blank, then
insert your unknown and press Measure
Sample . When the instrument completes the
measurement, the kinetics data and rate
appear on the screen.
If you want to switch between tabular and graphical
displays, press
Graph/Tabular .
When you have a graphical display, you can press
Edit Graph , then press Cursor to move the cursor
line from one position to another on the plot. As the
cursor moves the rate and result values indicate
the values for the point on the plot where the
cursor is located.
Rescaling & recalculating graphical kinetics
results
Within the Kinetics program, you can view and
manipulate your results either in graphical form or
in tabular form. When your results are displayed on
the screen, you can modify the range (start and
stop time) and the instrument automatically
recalculates the reaction rate.
When you are working with graphical kinetics
results, you need to press
Edit Graph before you
can rescale and recalculate.
You can modify the scale of your kinetics data plot
in two ways - automatically or manually. When you
select Auto Scale, the instrument automatically
scales the X- and Y-axes so all the data appears on
the plot. When you select Manual Scale, you select
specific minimum and maximum values for the X-
and Y-axes. Whenever you modify the scale, the
instrument also automatically recalculates and
displays the new reaction rate and result.
When the edit screen appears, you can:
•
Use the Auto Scale function to change the
scale, display the new graph and recalculate
the results
• Use the Manual Scale function to change the
scale, display the new graph and recalculate
the results
• Use the cursor to select new minimum or
maximum values for the X-axis and recalculate
the results.
To use the Auto Scale function
1. With your kinetics data displayed on the Edit
Graph screen, press Auto Scale . The
instrument automatically adjusts the minimum
and maximum values for the X- and Y-axes so
all the data appears on the plot. The instrument
also recalculates the results, using all the data,
and displays it on the screen.
To use the Manual Scale function
1. With your kinetics data displayed on the edit
screen, press
Manual Scale . The manual
scale options appear.
Using “General Tests” Software
Thermo Electron Corporation 3-18