Table of Contents
Advertisement
6. BEST MEASURING TECHNIQUE
Laser range finder measures distance by catching laser beam reflected
from the target. Everything that improves reflection increases the
measurement reliability and maximum range.
1. Use tripod when ranging remote targets. The longer is the distance,
the greater is the beam shift due to hand tremor.
2. Aim at a surface on the target that is the closest to perpendicular to
the laser beam. The closer you get – the stronger will be the
reflection.
3. The unit deploys sophisticated software that tries to understand
which target you are aiming at. However, due to beam divergence
several objects may produce a strong reflection. To help the System
recognise the target the Target Selection Logic may be used. For
example, if ranging a wire in front of a building, selecting the "first"
target (Code 12) will produce a more reliable result. Alternatively,
when aiming at a chimney behind the trees, selecting "last" target
(Code 11) will be better. By default the System assumes "auto"
target selection, that is, the object producing the most reflections will
be considered a target.
4. Another way to improve reliability of measurement is to use gating
mechanism. If gating is active reflections from all objects closer than
the gating distance will be ignored. This is especially effective when
ranging in unfavourable atmospheric conditions, that is, in the rain,
fog, haze or in the bright sun. Gating provides better results than the
"last" target selection, but it requires preliminary rough distance
estimation to cut off all objects closer than the chosen one.
Note: Gating setting is remembered by the System until altered.
Therefore, if you forget to turn the gating off, the next time you start
measuring it can ignore the desired object, if it is closer than the gating
distance. The unit will display four dashes instead of the measurement
results. "Over 100 meters" display indicator shows active gating.
7. STORAGE AND MAINTENANCE
The unit is a sophisticated precision optical instrument equipped with
laser and electronics. Therefore, it should be handled with due care.
•
Keep away from direct sunlight.
•
Avoid impacts, jolts, dust, moisture, and sharp changes of
temperature.
•
Do not use the device at temperatures higher than 50
13
o
o
C (122
F).
Advertisement
Table of Contents
