5. Measurements with the Barracuda System
Light Measurement
Barracuda & QABrowser Reference Manual
2012-10/4.3A
176
4. In the QABrowser select Ambient light
from the Type of Measurement menu.
5. Next select parameter Illuminance from
the menu.
6. The Select Detector screen is now
displayed. Select the L100-L probe.
7. Tap Select.
8. The real-time display for illuminance is now displayed. Cover the white
light-sensitive area of the L100 to shield off all light (you may use the rubber part
that comes with the L100-M if available). It is very important that you shield off all
light. Then tap Reset. After that you can remove the shield and place the light
detector where you want to measure.
9. Read the value on the real-time display.
The figure to the left shows the result. You
can now move the L100-L to other points
and measure the ambient light.
If you are measuring very low light intensities it may occur that the Barracuda does not
"start" to measure. You should then do as follows:
1. Do as described in step 1 to 8 above.
2. If the Barracuda does not start to measure, lift the L100-L and direct it towards a
bright spot.
3. Place the L100 detector on the spot where you want to measure.
4. Read the result on the display.
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