Zeiss LSM 880, Operating Manual

Page: 260 / 690

CHAPTER 1 - SYSTEM OPERATION
ZEISS Left Tool Area and Hardware Control Tools LSM 880
254 000000-2071-464 10/2014 V_01
5.3.17 Count Rate
•
Click the Count rate button to open the Count
rate
window (Fig. 339).
a) Display
Select one of the display modes Count rate ,
Correlation
or
CPM
(Counts / molecule) by
pressing the corresponding button. The arrow
buttons of the scale tab allow to adjust the
measuring range.
•
Click the Count rate button in the Display
line to display the count rate per second (CR)
for each activated physical channel (Fig. 339).
This value is constantly updated and calculated
each 0.5 ms, if
Averaging is switched Off . If
system overload occurs, an error message will
be displayed and the APDs switched off in order
to avoid damage (Fig. 340). Press
Ok to
continue and laser light intensity or
concentration of your sample.
•
Click the Correlation button to display the
correlation amplitude (G(0)) of each activated
physical and Software channel (Fig. 341). This
amplitude is constantly updated and calculated
each 0.5 ms if
Averaging is switched Off . The
expanded display for each channel can be
closed by the
Channel 1 , Channel 2 and Cross
Correlation arrows.
Fig. 339 Count rate window with count rate
display
Fig. 340 Overload display
Fig. 341 Count rate window with correlation
display