53
6.12. Measuring Light
1. Set
the function switch to „Lux“-position and set the range to
desired („lux“ or „10 x lux“) range.
2. Face the photo detector to light source in a horizontal position.
3. Read the illuminance nominal from the LCD-display.
4.
Overrange: If the instrument only display one „OL“ in the LCD
the input signal is too strong, and a higher range should be
selected.
100%
(Relative Sensitivity) Spectral Sensitivity
80%
V(
)
60%
40%
20%
0
400
500
600
700
Wavelength (nm)
