Hilti PRI 36 Manual De Instrucciones página 35

7.6.3 Setting the slope automatically 15
NOTE
The slope can be set automatically only when slope mode
is active and when a PRA 36 laser receiver is used.
Nevertheless, bring the laser to the required angle of
inclination (as described in section 7.5.2).
NOTE
en
The angle of inclination cannot be read digitally.
7.6.4 Setting the slope with the aid of the
PRA 76/79 slope adapter
1. With the aid of the target notch on the head of the
PRI 36, bring the tool into alignment until parallel
with the inclined plane.
2. Press and hold the on / off button for at least 8
seconds until the "inclined plane mode" indicator
lights at top right of the control panel.
3. Set the desired angle of inclination on the slope
adapter.
7.7 Surveillance 16
The surveillance function checks at regular intervals
whether an aligned plane (vertical or horizontal (hori-
zontal only in conjunction with the PRA 90 tripod)) has
shifted (e.g. due to vibration or temperature fluctuation).
If this is the case, the projected plane will be realigned to
the zero point (i.e. the marking notch on the PRA 36) (so
long as it is still within the receiving window). A PRA 36 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 (see 7.5.2).
2. Position the tool at the desired starting point 1 and
switch it on.
3. Position the PRA 36 laser receiver at the reference
point (point 2) on the axis and secure it there. The
tool (point 1) and the PRA 36 (point 2) then form
anchor points on the plane. Take care to ensure that
the marking notch on the PRA 36 is at exactly the
height at which the rotating laser is later to project
the laser line or point. The green laser receiving
surface on the PRA 36 must face the rotating laser.
4. Take care to ensure there are no obstructions
between the rotating laser and the PRA 36 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.
28
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5.
6.
7.
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 PRI 36 can save 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 36.
Deactivate sleep mode by pressing the "Sleep mode"
button on the PRA 36 again.
After reactivating the PRI 36, 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.
Switch the PRI 36 and the PRA 36 on. Surveillance
mode can be activated by double clicking the "Sur-
veillance mode" button on the PRA 36.
A further click is used to change the search direction
and a double click ends surveillance mode.
After the position has been reached (the marking
notch has been found) no further signal tone is
emitted.
The system is then in surveillance mode. The mode
is indicated in display of the PRA 36.
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. If the laser
plane shifts to a position outside the laser receiving
window or direct line of sight between the rotating
laser and the laser receiver is obstructed for a long
period (>2 min), the laser stops rotating, a warning
triangle appears in the laser receiver display and
short signal tones are emitted.
NOTE In order to ensure that the regular surveillance
process can be repeated automatically and of its
own accord, the PRA 36 should not be removed
from its position.