• Cumulative mode—A signal is sent on Channel 1 when a particle is
larger than the first or second channel size threshold. A signal is sent
on Channel 2 when a particle is larger than the user-selected channel
size threshold.
Figure 9 Differential versus cumulative count mode example
1 Pulse signal sent from counter
2 Data transfer in differential versus
cumulative mode
3 Channel 2
Manual operation
Use the setup utility software with a direct PC connection or over a LAN
connection to manually operate the instrument.
1. Open the SetupUtility.exe file to start the setup utility software.
2. Select the Data Display tab. Refer to
3. Use the buttons to operate the instrument.
Note: The buttons change depending on the system status.
Option
Description
Monitor
Shows the updated data continuously in real time.
Stop Monitor
Stops changes to the data shown.
4 Channel 1
5 Differential count—one 0.3 µm and
two 5.0 µm particles
6 Cumulative count—three 0.3 µm
and two 5.0 µm particles
Figure 10
for the data shown.
Option
Description
Sample
Starts sample collection. Samples are taken according
to the settings on the Basic Setup tab. Changes the
instrument to active mode if in inactive mode.
Stop Count
Stops sample collection.
Active Mode
Sets the internal laser and vacuum pump to on.
Enables alarms.
Inactive Mode
Sets the internal laser and vacuum pump to off.
Disables alarms.
Display Buffered
Shows the data from the last sample completed.
Data
Updates as each sample is completed.
Download Buffer
Saves a copy of the data records in the buffer to the
PC as a text (CSV) file.
Erase Buffer
Erases all data records from the buffer.
English 19