Operating Mode
From this mode of operation the four averaging times, seconds, minutes, hours
and days, may be displayed. The four concentration units, opacity, extinction,
dust density and Ringelmann levels, may be altered and the
measured/normalised measurements for dust density observed.
When in this mode, the display will appear similar to that shown below. If the
display is not similar to this, press the MODE key until number 1 appears in the
top left corner of the display.
To change the data displayed, press the ENTER key and a flashing cursor will
appear at the beginning of each of the four concentration units. The ARROW
keys will now change the highlighted parameter. Each push of the ENTER key
will select another of the parameters, in the following order :
• Concentration Units - opacity, optical density, dust
density (mg/m
3
or mg/Nm
3
),
Ringelmann.
• Averaging Time - seconds, minutes, hours, or days.
Once the display configuration is as required, press the ENTER key when the
cursor is flashing on the averaging time, and the cursor will disappear from the
display. The ENTER key may be pressed again if required to bring the cursor
back onto the display.
Parameter Mode
In this mode, the parameters set within the set-up mode may be examined, but
not changed. Press the MODE key until the number 2 appears in the top left
corner of the display, then press the ENTER key. The ARROW keys will now
scroll through the available options, press the ENTER key to display the
selected option. Press the ENTER key again to exit from each option.
See the set-up mode for further details of the display information, and how to
change the held parameters.
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