Velleman DEM300 Bedienungsanleitung Seite 4

4. Features
 max / min function
 light level measurements: 0 lux ~ 200000 lux
 easy to operate, light pocket-sized device
 4 digit LCD display with low-battery and overrange indication
 automatically revise parameters for nonstandard illumination
 selectable measurement units Fc/lux
5. Overview
Refer to the illustrations on page 2 of this manual.
1 light receptor
2 LCD display
3 on-off button
Display
1 illuminance value
2 illuminance value
3 measurement
4 data hold
6. Battery
1. To replace the battery, make sure the device is switched off.
2. Open the battery compartment at the back using an appropriate
screwdriver.
3. Take out the old battery and replace with a new and identical 9 V
battery following the polarity markings inside the compartment.
4. Close the battery compartment.
Warning: Do not puncture batteries or throw them in fire as they
may explode. Do not attempt to recharge non-rechargeable
batteries (alkaline). Dispose of batteries in accordance with local
regulations. Keep batteries away from children.
7. Operation
1. Remove the protective cap from the light receptor.
2. Press the on-off button for 1 second to switch on the meter.
3. Briefly press the on-off button to switch on the backlight.
4. Press the Fc/Lux button to select your measurement unit.
5. Aim the light receptor to the light source at a distance of 1 to 1.5 m.
The light level appears on the display.
V. 01 – 07/05/2015
DEM300
4 Fc/Lux button
5 tripod socket
6 battery compartment
5 MIN value
6 MAX value
7 auto power off
8 battery level
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