R = x (2)
30
RH [ft]
(d1 + d2) [inch]
4
R = x (1)
10
RH [m]
(d1 + d2) [mm]
4
6. Pivot the tool through 90°.
NOTE The lower plumb beam must remain on
the center of the cross.
7. Mark the position of the vertical beam on the
ceiling.
8. Repeat the procedure after pivoting the tool
through 180° and 270°.
NOTE The resulting 4 marks form a circle in
which the intersection of the diagonals d1 (1-3)
and d2 (2-4) marks the exact center of the plumb
point.
9. Calculate the accuracy as described in section
7.3.1.1.
7.3.1.1 Calculation of accuracy
The result (R) provided by this formula (RH = room
height) refers to the tool’s accuracy “in mm at 10 m”
(formula (1)). This result (R) should be within the
specification for the tool: 3 mm at 10 m
8. Care and maintenance
8.1 Cleaning and drying
1. Blow dust off the glass.
2. Do not touch the glass with the fingers.
3. Use only a clean, soft cloth for cleaning. If
necessary, moisten the cloth slightly with pure
alcohol or a little water.
NOTE Do not use any other liquids as these may
damage the plastic components.
4. Observe the temperature limits when storing
your equipment. This is particularly important in
winter / summer if the equipment is kept inside
a motor vehicle (-25°C to +60°C).
8.2 Storage
Remove the tool from its case if it has become wet.
The tool, its carrying case and accessories should
be cleaned and dried (at maximum 40°C / 104°F).
Repack the equipment only once it is completely dry.
Check the accuracy of the equipment before it is used
after a long period of storage or transportation.
Remove the batteries from the tool before storing it
for a long period. Leaking batteries may damage the
tool.
8.3 Transport
Use the original packaging or packaging of equivalent
quality for transporting or shipping your equipment.
CAUTION
Always remove the batteries before shipping the
tool.
8.4 Hilti calibration service
We recommend that the tool is checked by the Hilti
calibration service at regular intervals in order to
verify its reliability in accordance with standards and
legal requirements.
Use can be made of the Hilti calibration service
at any time, but checking at least once a year is
recommended.
The calibration service provides confirmation that the
tool is in conformance, on the day it is tested, with
the specifications given in the operating instructions.
The tool will be readjusted if deviations from the
manufacturer’s specification are found. After check-
ing and adjustment, a calibration sticker applied to
the tool and a calibration certificate provide written
verification that the tool operates in accordance with
the manufacturer’s specification.
Calibration certificates are always required by com-
panies certified according to ISO 900x.
YourlocalHilti Center or representativewill bepleased
to provide further information.
en
17
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