Installation - LaserLiner AL 22 Mode D'emploi

Installation

Please note
Prior to its use, the instrument
should be given time to adopt the
prevailing temperature of the area.
Positioning the level
1. Adjust height of the
instrument to a
comfortable position
(telescope should be
eye-level). When
working on soft
ground, tread legs of
tripod firmly into the ground.
2. Place the
instrument onto the
tripod and fix it by
turning the fixing
screw into the tripod
socket.
3. Levelling bubble to be centred by
operating the levelling screws.
Advice for positioning
Turn horizontal dial onto position
0, before doing so, levelling screws
are to be slightly loosened. Now, by
using only the rear
levelling screws, the
levelling bub-
ble is to be
centred (see
drawing).
12
ENGLISH
Adjust folding mirror in a way that
the levelling bubble is well visible.
a) Turn both levelling screws in
opposite senses:
b) Turn both levelling screws into
the same direction:
4. Focus crosshairs by turning the
focusing ring on the lens -
background should be bright.
Alignment
1. Initial alignment of the telescope
towards the graduated staff is done
by hand, using the iron
sights.
2. Focus the image of the
staff, by operating the focusing
knob, turn crosshairs onto the staff
centre.
3. Make sure focusing is free of
parallax. The focusing is alright
when crosshairs and graduation of
the staff don't change their
positions even when looked at from
different angles (keep changing
position of the eye in front of the
eyepiece).