Care And Maintenance; Cleaning And Drying; Transport; Disposal - Hilti PRA 20G Mode D'emploi

6. Position the laser receiver so that the distance dis-
play shows "0".
7. Use the measuring tape to measure the desired
offset distance.
6.2.5 Setting the measuring unit
The "Units" button can be used to set the desired accur-
acy of the digital display (mm/cm/off).
en
6.2.6 Volume adjustment
After switching the receiver on, the volume is automat-
ically set to "normal". The volume can be adjusted by
pressing the "Volume" button. One of four settings can
be selected: "Low", "Normal", "High" or "Off".

7 Care and maintenance

7.1 Cleaning and drying

1. Blow dust off the surfaces.
2. Do not touch the display areas or the receiving
window 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. Dry the equipment, observing the maximum tem-
peratures given in the technical data.
NOTE Especially in summer and winter, take care
that the given maximum and minimum temperatures
are not exceeded, e.g. when the equipment is stored
in a motor vehicle.
7.2 Storage
1. Remove the appliance from its case if it has be-
come wet. Dry and clean the tool, its transport
container and accessories (while observing the per-
missible temperature range). Repack the equipment
only once it is completely dry.
2. Check the accuracy of the equipment before it is
used after a long period of storage or transportation.
3. Remove the batteries from the receiver before stor-
ing it for a long period. Leaking batteries may dam-
age the receiver.

8 Disposal

WARNING
Improper disposal of the equipment may have serious consequences: The burning of plastic components generates
toxic fumes which may present a health hazard. Batteries may explode if damaged or exposed to very high
temperatures, causing poisoning, burns, acid burns or environmental pollution. Careless disposal may permit
unauthorized and improper use of the equipment. This may result in serious personal injury, injury to third parties and
pollution of the environment.
12
6.2.7 Menu options
Press and hold the on/off button for two seconds when
switching the receiver on.
The menu is then shown in the display.
Use the "Units" button to switch between metric and
imperial units.
Use the "Volume" button to assign the more rapid signal
tone to the upper or lower area of the receiving window.
To save the settings, switch the receiver off.
NOTE
Each setting made becomes effective the next time the
tool is switched on.

7.3 Transport

Use the original Hilti packaging or packaging of equivalent
quality for transporting or shipping your equipment.
CAUTION
Remove the batteries from the laser receiver before trans-
porting or shipping it.
7.4 Hilti Measuring Systems Service
Hilti Measuring Systems Service checks the tool and, if
deviations from the specified accuracy are found, recal-
ibrates the tool and checks it again to ensure conformity
with specifications. The service certificate provides writ-
ten confirmation of conformity with specifications at the
time of the test.
The following is recommended:
1. The tool should be checked at suitable intervals,
depending on the frequency of normal use.
2. The tool should be checked at least once a year by
a Hilti Measuring Systems Service Center.
3. The tool should be checked by a Hilti Measuring
Systems Service Center if it has been abused in any
way.
4. The tool should be checked by a Hilti Measuring
Systems Service Center before being used for par-
ticularly important work.
Having the tool checked by a Hilti Measuring Sys-
tems Service Center does not relieve the user of
his/her obligation to check the tool before and dur-
ing use.