Battery Installation - Velleman VTUSD3 Manual Del Usuario

Telémetro por ultrasonidos con láser
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alarm function for wrong readings
with carrying pouch
5. Overview
Refer to the illustrations on page 2 of this manual.
1
ultrasonic sensor
2
laser
3
LCD
4
front (Fm)/base (Bm)
measurement mode
5
feet (Ft)/meter (M)
conversion
6
READ key
7
area measurement
8
volume measurement

6. Battery Installation

Use a fresh alkaline battery to ensure accurate measurements. Replace the
battery when the
1.
Open the battery cover at the back of the meter using an appropriate
Phillips-head screwdriver. You may need to remove the belt clip.
2.
Remove the old battery and insert a new one.
3.
Close the battery cover and slide the belt clip into place.
7. Operation
Activating/Deactivating the Meter
Press the on/off key to activate or to deactivate the meter. The device is
sensitive to changes in temperature and humidity. Wait ± 15 minutes and
let the device reach room temperature prior to use. Note that the backlight
will automatically switch off after ± 5 seconds. The meter itself will
automatically switch off after ± 1 minute of inactivity.
Measuring Distance
Select the measurement mode. Use the Fm measurement mode when
measuring distance from where you are standing. Use the Bm measurement
mode to measure distance from wall to wall. To do so, press the Fm/Bm
key, place the back of the meter against the wall and press the READ key.
Calculating an Area
This function can be used to measure the surface area of a room. Press the
area measurement key. Measure the length of the room first (displayed
upper value). Now, measure the width of the room. The surface area will
appear as the lower value (in m² or ft²).
V. 02 – 05/08/2014
VTUSD3
symbol appears on the display.
4
9
escape/erase
10
addition
11
store data
12
recall memorized data
13
on/off key
14
belt clip
15
battery cover
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