Velleman VTLD100 - Manual (Page 9)

VTLD100
V. 02 – 26/11/2013 9 ©Velleman nv
line [11]. Keep the reference point (top or bottom of the meter) as
close as possible to the original position.
• The distance between the 2 measuring points is calculated and
displayed on the third line [12].
Indirect measurement – 3 measurements [E]
•
Press the indirect measurement button [c] 2 times. The 2nd indirect
measurement icon
appears [4].
• Press the ON/measuring button [a] to measure the first distance
(bottom, see illustration E). The value appears in the first line [10].
• Press the ON/measuring button [a] again to switch on the laser. Press
again to measure the second distance. The value appears in the second
line [11]. Keep the meter horizontally and the reference point (top or
bottom of the meter) as close as possible to the original position.
• Press the ON/measuring button [a] again to switch on the laser. Press
again to measure the third distance. The value appears in the second
line [11], the previous value moves to the first line [10].
• The distance between the bottom and top measuring points is
calculated and displayed on the third line [12].
10. Troubleshooting
When an error occurs, an error code is displayed on the LCD. Refer to the
table below for an overview of these codes.
code cause solution
204 calculation error repeat procedure
208 received signal too weak
measurement time too long
distance > 50m
use target plate
split up and add measurements
209 received signal too strong
(target too reflective)
use target plate
252 temperature too high let the device cool down
253 temperature too low (gently) heat up the device
255 hardware error Switch the device ON/OFF a couple of
times, remove and re-insert the
batteries.
Contact your local dealer if the error
remains.
11. Maintenance
• Do not immerse the device in any liquid.
• Wipe the device regularly with a moist, lint-free cloth. Do not use
alcohol or solvents.
• Keep the lens clean at all times to obtain best performance.