Velleman DEM400 Bedienungsanleitung Seite 4

4. Features
 wind speed measurements in: m/s, ft/min, mph, km/h and knots
 temperature reads out in °C and °F
 backlight LCD display with function indication
 max / min / data-hold function
 auto power off and low-battery indication
5. Overview
Refer to the illustrations on page 2 of this manual.
1 impeller
2 MIN/MAX button
3 LCD display
Display
1 battery level
2 auto power-off
3 temperature unit °C
4 MAX value
5 MIN value
6 temperature unit °F
7 wind speed unit knots
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. Press the on-off button for 1 second to switch on the meter.
2. Briefly press the on-off button to switch on the backlight.
3. Hold the impeller into the air or gas flow to be measured. The display
shows the measured value.
4. Hold the MIN/MAX pressed for 3 seconds to select your wind speed
unit.
V. 01 – 07/05/2015
DEM400
4 on-off button
5 tripod socket
6 battery compartment
8 wind speed unit m/s
9 wind speed unit mph
10 wind speed unit km/h
11 wind speed unit ft/min
12 wind speed measurement
13 temperature measurement
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