HiVol 3000 User Manual 1.7 Operation
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3.2.1 HiVol sampling protocol
The HiVol uses a number of logical (conditional) parameters to decide
when it should switch the sample pump on.
The pump will be energised when all conditional parameters are
satisfied. The conditional parameters can be summarised as follows:
• Is the current date after the specified Start Date and Time?
• Is the current date before the specified End Date and Time?
• Is the current time within one of the programmed Daily
sampling times? (Between any of the 6 programmable On
Time / Off Time periods)
• Is the current Day Of Week a specified sampling day?
• Is the wind speed and direction sensor data within the
programmed range?
• Is the internal power supply voltage above the lower limit
(typically 11V)?
If all of the conditional parameters are satisfied (All ‘YES’ values displayed
in the Status Menu), then the HiVol sample pump will operate, and a sample
will be collected on the filter paper.
In order to make the HiVol pump operate continuously, it is possible to set the
HiVol with parameter values that ensure all conditions are satisfied for long
periods of time. The only exception is that of the power supply voltage, which
should always be maintained above 11VDC. To set the HiVol 3000 to run
continuously, enter the Setup menu:
Select Setup menu, then Times menu:
• Select Start Date: Enter a date that is before the current date.
Example: Set the Start Date as yesterdays date or earlier.
• Select End Date: Enter a date in the distant future.
Example: Set the End Date as tomorrows date or later.
• Select Daily: Set On Time 1 to 00:00, Set Off Time 1 to 24:00.
• Select Weekly: Set all days to YES.
• Set Days/cycle to 1