Casella CEL Microdust 880 IS real time dust monitor - Manual (Page 27)

Microdust 880nm & WinDust Application Software
Handbook HB3255-03
Page 27 of 51
Clearing the Logger memory
The Microdust has a logging capacity of over 32,000 data points. The total number of recorded data
points is shown within the ‘Records saved’ window.
All recorded data should be downloaded to a P.C prior to clearing the loggers memory. Once the
memory has been cleared there is no possibility to recover deleted data.
Whilst the ‘Records saved’ window is displayed, pressing the ‘Enter+Esc’ key combination is used
to clear the loggers memory and reset the ‘Records saved’ value to zero. A warning message will be
given before erasing the memory.
Starting the Logger
The ‘Logger Active/Stopped’ window displays the loggers current operating status. When the
Microdust is first turned on the logger will be ‘Stopped’.
Pressing the ‘Enter+Esc’ key combination toggles the loggers operating mode between ‘Active’ and
‘Stopped’.
When the logger is ‘Active’ (recording data) a flashing ‘L’ character will be displayed in the lower
right hand corner of the display.
What values are recorded?
Each saved data record represents the average displayed dust concentration which has occurred
during the logging interval together with the date and time when the record was saved. The average
value will be calculated from the displayed ‘Current’ or ‘Offset’ readings.
At the end of each logging run (ie. when the logger is ‘stopped’ or the Microdust is switched off) a
‘Summary record’ will be saved. The summary record identifies the average and maximum
concentrations which have occurred during the entire run. The time and date of the maximum
concentration are also recorded.
Reviewing Logger data
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