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5.2 Measurement
1.
Press the Start/Stop button (red button at
the center) and direct the guide light
toward the area to be measured.
2.
The measured value is displayed
as shown in the screen on the
right.
❖
If the measured value is
displayed in white, the
measurement was done
accurately.
❖
If the measured value is displayed in gray, it is a reference value (this is a
value with low measurement accuracy due to insufficient received light
intensity.).
❖
To toggle the screen, press the Display/Back button.
(numeric mode
↔
graph mode)
3.
To end measurement, press the Start/Stop button again.
❖
During measurement, the measured and maximum values are displayed
every 0.5 seconds, and when measurement ends, the data is kept.
❖
The measurement values displayed in the graph mode are the most recent
values measured over the last 25 seconds.
❖
If the reflection intensity bars are not indicated in green, try to increase the
sensitivity for example by reducing the measuring distance (until four or
more bars are lit).
❖
The unit is provided with functions that give an acoustic alarm and a
flashing detection lamp when it detects a column density exceeding a
preset threshold. (See “5.3 Changing Settings”)
Graph mode
Numeric mode
