10
6.
Press the “MIN MAX” button to show the minimum and maximum captured data
. To
return to real-
time measurements, press and hold the “MIN MAX” button for 2 seconds.
7.
To change the light units between FC (foot-candles) and LUX (lumens per square
meter), press the “FC LUX” butto
n.
This can also be used in the “MIN MAX” data
capture, but it will not work with the “Hold” on.
8.
To change the temperature units, turn off the device.
While holding down the “Hold”
button, press the Power button.
9.
When done with the device, replace the photo detector cap and remove the batteries.
Table 1 presents recommended light levels for spaces within schools as a reference.
Table 1. Recommended Light Levels in Schools
Space
Recommended illumination (foot-candles)
Hallway
5-10
Classrooms
20-30
Music Room (classroom)
20-40
Computer Lab
10-20
Cafeteria
20-30
Library
20-40
Gym (Elementary/Middle School)
30-50
Competition Gym (High School)
60-80
