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8.6
Measuring process
·
Remove the cover from the collecting head. The collecting head should be sterilized in an
autoclave at 121 ° C for 30 minutes (sterilization with a cloth with 75% alcohol is also
possible). After sterilization, the cover should be placed back on the collecting head. The
Petri dish should also be sterilized with 75% alcohol.
·
Switch on the device. The display should show the current date and time settings, the battery
level, the storage, the last set of the measuring volume, the delay time and other information.
·
In the air sampler, a Petri dish with a middle diameter of Ø 70 ~ 90 mm should be used. The
Petri dish is inserted into the device below the collecting head and pushed down to the
bottom of it. The collecting head must first be removed and then restored. The cover of the
collecting head can be removed.
·
Press the "sampling" button to access the quick settings. The device automatically loads the
last settings or the last relevant parameter is shown (via the parameter group code). When
the "select" button is pressed, the cursor position can be changed. By using the "Up" and
"Down" buttons, the appropriate group code can be found. Press the "select" key to confirm
the appropriate group code and the device is in the mode change. When the delay time has
expired, the measurement pump is activated. This lasts until the preset measuring volume is
reached. Then, the measuring pump is disabled automatically again. The screen will switch
again to the normal user interface. The measuring process is over and the data be
automatically saved.
·
Remove the collecting head of the device and remove the plate and cover these with their
covers, mark the number, and place the plate in an incubator until the needed constant
temperature is reached.
·
To take more measurements, the collecting head must again be sterilized and the previous
steps must be repeated.
·
In the main menu, press the "select" button to start the query for the data. This is before the
appropriate data displayed (incl. the measuring quantity, the sample rate, measuring time, the
code of the measuring location and other information are displayed). It is possible to store up
to 2000 pages of data. If the "Select key" is pressed, it moves the cursor to the desired
position. In this way, the various pages can be seen. By pressing the "exit" button, you can
return to the main menu.
·
In the measuring mode, the "exit" button can manually stop the measurement. This is the
function measuring pump, the display of the measurement of total stops and the central
user interface is displayed.
9
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