Beckman Coulter Multisizer 4, User Manual

Page: 111 / 238

PN A51387A
B
4-21
Selecting Analysis Settings: SOM and SOP
Using a Standard Operating Method (SOM)
4
• Use change from start of run, Aperture Resistance: 40%
• Use Concentration
• Blocked for at least 4 seconds
2. In the Use Minimum & Maximum column, select each parameter you want to use. In the
corresponding fields, enter the Nominal, Minimum, and Maximum values that will trigger an
unblock procedure. Flow Rate is only available when you are running volumetric mode.
To set default values in the selected fields, click the
(
Default Nominal
)
or
(
Default Min/Max
)
button.
3. In the Use change from start of run column, select Flow Rate, Count Rate, or Aperture
Resistance. In the corresponding fields, enter the percentage of change that will trigger an
unblock procedure. To set default values in the selected fields, click
(
Default Change
)
. Flow Rate
is only available when you are running volumetric mode.
4. You can specify that a momentary blockage occurring for fewer than a preset number of
seconds be ignored. Enter the number of seconds in the Blocked for at least [X] seconds field.
5. Click
(
OK
)
to accept the blockage detection settings.
6. In the SOM Wizard, click
(
Next
)
to proceed to the next step.
SOM Wizard: Summary of Settings
Step 9 of the SOM Wizard displays a summary of your Standard Operating Method settings. To see a
summary of SOM settings when you are not using the SOM Wizard, select
SOP > SOM Info
on the
Main Menu bar.
• Return to any previous step by clicking the step number in the Return to Previous Step pane.
• To save the SOM settings to a file, click
(
Save
)
.
• To print the SOM settings, click
(
Print
)
.