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Technical Documentation and
User Instructions
Laser Mirror Scanner LMS-Q280i
6.3.3.3 Switching the Laser Off and On, Laser Lock
Command
Reply
Range
Meaning
LASERn<Cr> * LASERn
0
≤
n
≤
1 Software laser switch
n=0: laser off (like command ^F in
measurement mode)
n=1: laser on (like command ^N in
measurement mode)
6.3.3.4 Target Selection
Command Reply Range
Meaning
TSn<Cr>
*TSn
0
≤
n
≤
2
0: measurement of FIRST TARGET
1: measurement of LAST TARGET
2: ALTERNATIG first / last target
The
LAST TARGET
detection is useful for measurement situations where
targets in front (trees, bushes ...) partly block the sight to the desired
measurement target.
For last target detection up to 4 targets with an intermediate distance of at least
5 meters between consecutive targets can be handled.
An
ALTERNATING
measurement mode enables automatic switching between
first and last target. When scanning, the mode first target / last target is
alternated with every laser shot in a scan line. Each line starts with first target
mode.
When using the LMS-Q280i under environmental conditions providing
electrical, electrostatic and/or electromagnetic disturbances, only the
program FIRST TARGET has to be used in the interest of achieving the
highest possible reliability of measurement. The programs LAST TARGET
or ALTERNATING must not be used!
6.3.3.5 Hardware Resolution Mode and Maximum Range
The
hardware resolution
is fixed
5 mm
. Earlier versions of the LMS-Q280i had
user selectable hardware resolution modes (command HWRES) with different
possible maximum range values.
The
nominal maximum range
is
2000 m
; note that the effective maximum
range depends on the target quality (distance to target, reflectivity, visibility, size
of target, angle of incidence of laser beam etc.) and usually is lower.