Gossen Mavo-Spot 2 USB User Manual
Page 17
GOSSEN Foto- und Lichtmesstechnik GMBH
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With the Corr2 function (factor of 3.142) and the GOSSEN reflection standard (optional accessory), you can
indirectly measure illuminance (lux or footcandles) with your MAVO-SPOT 2.
The unit of measure is switched to illuminance (lx or fc) at the display while measurement is being performed.
The factor 3.142 is the relationship between illuminance (E) and luminance (L) for a perfect reflecting diffuser
L
E
*
For a real diffuser (like GOSSEN reflection standard) where reflectance is less than 100%, Corr2 must be
adjusted to the actual value. Use the specific value delivered with your standards calibration protocol.
You can’t change Corr factors permanently until you have cleared the entire memory. This precaution is for
preventing a mixup of measurements with different Corr factors in memory.
The individual factor is saved to correction memory by pressing the
key.
The correction factor is now applied to all measured values shown at the
display, which can be saved to memory as well.
The Corr symbol appears at the upper right hand corner of the display panel
in order to indicate a programmed correction factor.