15
14
Start-up the unit
Insert the battery
Open the battery cover and insert the 9 volt battery according to the
correct polarity.
Power
Press the power button to start normal measurement.
Measurement
1. Remove the photo detector to light source in a horizontal
position.
2. Read the luminance on the LCD display. If the environment is
dark, the LCD backlight will automatically turn on.
3. The measure range will changed automatically with the light
intensity. It includes 200.0 Lux,2000 Lux,20 KLux and 40 KLux
4 ranges for Lux; or 20.0 FC,200 FC,2000 FC,4000 FC 4
ranges for FC correspondingly.
4. Press the function button for about 2 second to change the
unit between Lux and Fc
5. Press the function button quickly to change to the MAX HOLD
function. Press once again to release the hold and allow
another measurement.
6. Over-range: If the instrument display “OL” in the M.S.D. the
input signal is too strong
7. When the measurement is finished, replace the photo detector
from the light source.
8. Spectral characteristics of sensitivity: The photo diode with
filters applied to the spectral sensitivity does meet CIE (Inter
national Commission on Illumination) photopia curve V (
ʎ
)
describes.
9. Recommended Illumination:
Locations
Lux
*Office
Conference, Reception room.
200~750
Clerical work
700~1,500
Typing drafting
1000~2,000
*Factory
Packing work, Entrance passage
150~300
Visual work at production line
300~750
Inspection work
750~1,500
Electronic parts assembly line
1500~3,000
*Hotel
Public room, Cloakroom
100~200
Reception, Cashier
200~1,000
*Store
Indoors Stairs Corridor
150~200
Show window, Packing table
750~1,500
Forefront of show window
1500~3,000
*Hospital
Sickroom, Warehouse
100~200
Medical Examination room
300~750
Operating room
Emergency Treatment
750~1,500
*School
Auditorium, Indoor Gymnasium
100~300
Class room
200~750
Laboratory Library Drafting room
500~1,500
Replacing the battery
It is neccessary to replace the battery when the battery symbol
appears. Open the battery case on the rear side. Insert a new
alcaline battery. Connect the battery with the correct polarity with
the battery-clip. In order to avoid leaking batteries replace weak
batteries asap. In case of leaking batteries use gloves and goggles
for personal protection.
