Hilti PR 35, Руководство по эксплуатации, Страница: 33 / 135

7.6.2 Setting the slope manually
Press the direction buttons (up/down) on the PRA 35
remote control. Pressing the arrow buttons for longer
causes the values to change more quickly.
The LED display on the PRA 35 shows the angle of slope.
If no button is pressed for 3 seconds, the tool will be set
to the most recently displayed value.
7.6.3 Setting the slope automatically
NOTE
The slope can be set automatically only when slope mode
is active and when a PRA 35 laser receiver is used.
Incline the laser as described at 7.5.2, but in alignment
with the inclined plane.
7.6.4 Optional electronic alignment
After setting the slope as described above, alignment of
the PR 35 can be optimized by Hilti’s patented electronic
alignment system.
1. Position the PRA 35 centrally opposite the PR 35 at
the end of the inclined plane. It can be held still by
hand or fixed in place with the aid of the PRA 80.
2. Switch the PRA 35 on.
3. Activate electronic alignment on the PR 35 by press-
ing the “Left” arrow button.
4. If the shock warning / slope LEDs blink, the PRA 35
is not receiving the laser beam from the PR 35.
5. If the shock warning / surveillance LEDs blink, realign
the PR 35 by moving it counterclockwise.
6. If the slope / surveillance LEDs blink, realign the
PR 35 by moving it clockwise.
7. If the surveillance LED blinks, alignment is correct.
8. End electronic alignment mode by pressing the
“Right” arrow button.
7.6.5 Setting the slope with the aid of the
PRA 76/78 slope adapter
NOTE
Check that the slope adapter is fitted correctly between
the tripod and the tool (please refer to the operating
instructions).
7.7 Surveillance
The surveillance function checks at regular intervals
whether the plane that is set (vertical, horizontal or in-
clined) has been altered inadvertently (e.g. by vibration).
If this is the case, the projected plane will be realigned to
the zero point (i.e. the marking notch on the PRA 35) (so
long as it is still within the receiving window). A PRA 35 is
required for use of the surveillance function. An additional
laser receiver can be used to detect the laser beam while
the laser beam is being monitored.
1. Preparation for activation of the surveillance function
is basically the same as the procedure for activation
of automatic alignment mode.
2. Position the tool at the desired starting point 1 and
switch it on.
3. Position the PRA 35 laser receiver at the reference
point (point 2) on the axis and secure it there. The
tool (point 1) and the PRA 35 (point 2) then form
anchor points on the plane. Take care to ensure that
the marking notch on the PRA 35 is at exactly the
height at which the rotating laser is later to project
the laser line or point. The red laser receiving surface
on the PRA 35 must face the rotating laser.
4. Take care to ensure there are no obstructions
between the rotating laser and the PRA 35 laser
receiver which could interfere with communication
between the devices. Glass and other translucent
materials may also interfere with communication
between the devices. Reflections from windows may
also cause interference.
5. Switch the PR 35 and the PRA 35 on. Surveillance
mode can be activated by double clicking the “Sur-
veillance mode” button on the PRA 35.
A further click is used to change the search direction
and a double click ends surveillance mode.
6. The system is then in surveillance mode. The mode
is indicated in display of the PRA 35.
7. The surveillance system checks at regular intervals
whether the laser plane has shifted. If it is found to
have shifted, the laser plane will be readjusted to the
original marking plane as far as possible. An error
message is displayed if the marking plane is outside
the leveling range of ±5° or if direct line of sight
between the rotating laser and the laser receiver is
obstructed for a long period.
7.8 Returning to standard mode
In order to return to standard mode, horizontal alignment,
300 /min, the tool must be switched off and restarted.
7.9 Sleep mode
The PR 35 saves power when in sleep mode. The laser is
switched off, thereby extending battery life.
Activate sleep mode by pressing the “Sleep mode” button
on the PRA 35.
Deactivate sleep mode by pressing the “Sleep mode”
button on the PRA 35 again.
After reactivating the PR 35, check the laser settings in
order to ensure accuracy.
7.10 Working with the target plate
The target plate improves laser beam visibility. The target
plate should be used in bright conditions or whenever
improved laser beam visibility is desired. Simply bring the
target plate into the plane of the projected laser beam.
The target plate is made from a material that makes the
laser beam more easily visible.
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Printed: 08.07.2013 | Doc-Nr: PUB / 5070234 / 000 / 01