5
5-2 Point average measurement
Illuminance is a measure of the amount of light falling upon a
prescribed surface area. As the RS-01 detector has only a
small sensor area, the measured light level is multiplied and
averaged proportionally using the point average function
within the instrument to provide a corrected reading.
1. Press the “ ”
power button to turn the meter on.
2. Press the “lux/fc” button to select the desired units; lux or
fc.
3. Remove the photo detector cap and place the detector so
the light falls squarely on the detector filter.
4. Press the “AVG” button to enter to point illuminance
average mode. The annunciator “AVG” is displayed. The
maximum number of point measurements is 99.
5. Each subsequent press of the “MEM” button stores one
measured point value to memory. The annunciator “AVG
NO.XX” is displayed.
6. Press the “READ” button to cycle through the memory
locations and perform the point average calculation. The
second annunciator “ AVG ” is displayed with the current
illuminace value reading.
7. Press the “MEM” button to add the new illuminance
measured value for the average calculation.
8. Press the "
" or "
" button to display each of the
previously measured point data.
9. Press the "AVG" button to exit this mode. All measured
data stored in memory will remain, even if the instrument
power is turned off. Only when new point data AVG is
stored in memory No.1 will all previous measured data
be cleared.
