Operation; Care And Maintenance; Cleaning And Drying; Transport - Hilti PTA 20 Mode D'emploi

7 Operation

7.1 Calibrating the PT10 quick check
device 3 4 5 6 7 8 9
NOTE
Calibration should be carried out at regular intervals. The
PTA 20 calibration tool is available from Hilti for calibration
of the PT 10 quick check device. The calibration tool
en
should be sent in advance to a Hilti service center for
checking and calibration.
1. Mount the calibration tool on the tripod adapter of
the PT 10 (3).
2. Plug the calibration tool supply cord into the power
outlet.
3. A message appears in the display and the present
deviation is shown. The calibration sequence num-
ber is also shown. The calibration sequence number
increases by one after each successful calibration
of a PT 10 quick check device.
4. Check the bubble level on the optical level again and
correct the level if necessary by turning the optical
level adjusting screws.
5. Switch on the PT 10 quick check device.
6. Use the tip of a pointed object such as a ball-point
pen to press the calibration switch (4) on the panel
at the rear of the device.
The small red LED on the right lights indicating
calibration mode (6).
7. Select filter setting II. The accuracy class does not
have to be selected.
8. Turn the crank to adjust the height of the PTA 20
calibration tool (4) so that the laser beam emitted is
aimed at the center of the crosshairs on the PT 10
quick check device.
The position of the laser beam on the camera lens
is indicated by the LEDs.

8 Care and maintenance

8.1 Cleaning and drying

1. Blow dust off the lenses.
2. Do not touch the glass or the filter 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. The temperature limits for storage of your equipment
must be observed, especially in winter / summer.
10
9. Turn the fine adjustment screw (5) on the PTA 20
until the display shows "zero".
NOTE The direction in which the fine adjustment
screw should be turned is indicated by the two ar-
rows in the display. The arrows at the beginning of
the line indicate the direction in which the fine adjust-
ment screw should be turned and the subsequent
digits indicate the present deviation / inclination in
arc seconds and arc minutes.
10. Both yellow LEDs light up as soon as the laser beam
strikes the camera. At the same time, the "Start
measuring" button becomes active and the device
is ready to begin measuring.
11. If neither of the yellow LEDs (7,8) light up or only
one LED lights, turn the fine adjustment screw on
the optical level until the laser beam is found.
12. Press the "Start measuring" button (9). The measur-
ing operation is indicated by the yellow LEDs blink-
ing and continues for a maximum of 50 seconds.
NOTE Do not touch or move the PTA 20 calibration
tool or the PT 10 quick check device while measuring
is in progress. An error message will be displayed in
the event of vibration.
The green LED lights after successful calibration and
the PT 10 returns to normal operating mode. The
small red LED on the right goes out.
7.2 Calibration
NOTE
Monitoring of measuring equipment for users certified in
accordance with ISO 900X: The measuring equipment
monitoring procedure for the PTA 20 calibration tool, as
required within the scope of ISO 900X, cannot be carried
out by the owner. The PTA 20 must be returned to a Hilti
service center for calibration and certification.
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.

8.3 Transport

Use the Hilti toolbox or packaging of equivalent quality
for transporting or shipping your equipment.