Cleaning And Maintenance; Technical Specifications - Velleman DEM300 Bedienungsanleitung

6. Hold the Fc/Lux button for 3 seconds to display the recorded maximum
value, briefly press to display the recorded minimum value, hold
pressed to exit the function.
7. Press the on-off button for 3 seconds to switch off the meter.
8. Place the protective cap over the light receptor after use.

8. Cleaning and Maintenance

 Wipe the device regularly with a moist, lint-free cloth. Do not use
alcohol or solvents. DO NOT submerge the device in any liquid.
 Store the meter in a dry place away from humidity and vibrations.
 Remove the battery when the meter is to be stored for long periods of
time.

9. Technical Specifications

light
measuring range
accuracy
repeatability
operating temperature
humidity
power supply
measurement rate
auto power-off
dimensions
weight (with battery)
Use this device with original accessories only. Velleman nv cannot
be held responsible in the event of damage or injury resulting from
(incorrect) use of this device. For more info concerning this product
and the latest version of this manual, please visit our website
www.velleman.eu. The information in this manual is subject to
change without prior notice.
© COPYRIGHT NOTICE
The copyright to this manual is owned by Velleman nv. All
worldwide rights reserved. No part of this manual may be copied,
reproduced, translated or reduced to any electronic medium or otherwise
without the prior written consent of the copyright holder.
V. 01 – 07/05/2015
DEM300
0 lux ~ 200000 lux / 0 Fc ~ 20000 Fc
(measurement repeatability)
± 3 % rdg ± 0.5 % f.s.(< 10,000 lux)
± 4 % rdg ± 10 dgts (> 10,000 lux)
± 2%
one silicon photo diode with filter
-20° C ~ 60° C
10 ~ 90 % RH
1x 9 V battery, 006P, NEDA1604 or IEC6F22
2x / sec.
15 min.
171 x 55 x 38 mm
± 161 g
5 ©Velleman nv