-6-
OPERATION
Initial Operation
Check the leveling and indication accuracy
of the instrument each time before
using and after longer transport of the
measuring tool.
!
WARNING
Protect the instrument
against moisture and
direct sun light.
Do not subject the instrument to extreme
temperatures or variations in temperature.
As an example, do not leave it in vehicles
for long time. In case of large variations
in temperature, allow the instrument
to adjust to the ambient temperature
before putting it into operation.
In case
of extreme temperatures or variations
in temperature, the accuracy of the
instrument can be impaired.
Avoid heavy impact or falling of the
instrument.
After heavy exterior impact on
the instrument, an accuracy check should
always be carried out before continuing
to work.
Setting Up Instrument
!
WARNING
It is important that the
tripod is set up firmly.
Make sure that the tripod points are well
into the ground.
On paved surfaces, be
sure the points hold securely.
The legs should have about a 3-1/2 foot
spread, positioned so the top of the tripod
head appears level.
If using a tripod with adjustable legs, be
sure the leg clamps are securely hand
tightened.
Attach the instrument to the tripod
securely, hand tightening the instrument
base to the 5/8-11 tripod head.
Aligning the Instrument
Align the instrument with the levelling
screws
13
so that the air bubble is
positioned in the centre of the circular
bubble vial
8
.
Turn the first two leveling screws
A
and
B
to move the air bubble so that it is centred
between the two levelling screws.
Then turn the third leveling screw
C
until
the air bubble is positioned in the centre
AL8-Series
AL8-26
AL8-32
Horizontal Circle:
Diameter
4.3” (108 mm)
4.3” (108 mm)
Circle graduation:
1°
1°
Instrument weight:
3.7 lb (1.7kg)
3.7 lb (1.7kg)
Mounting thread:
5/8-11
5/8-11
Protection
IP54
IP54
