Hilti PR 300-HV2S Manual De Instrucciones página 50

2. After entering the inclination on the PRA 300, double-click the AUTO key to select the Auto E-targeting function
and confirm your selection by pressing
The animation shown on the PRA 300 indicates how automatic alignment is proceeding. As soon as this is
completed, alignment with the PRA 300 is correct.
After successful alignment, the function is ended automatically and the laser is aimed at the receiving window on
the receiver.
There may be divergence between the results obtained by approximate alignment with the aid of the visual
sighting method (using the front and rear sights) and fine alignment with the aid of automatic electronic inclination
en
alignment. As the automatic electronic method using the tool is more accurate than the visual method, we
recommend that electronic inclination alignment is always used as the reference.
It can always be seen from the menu bar that Auto E-targeting has been used. If the system is switched off, the
divergence from the result obtained using the visual sighting method is canceled.
The laser first searches for the receiver in the X-axis and then in the Y-axis. Targeting can take place only within
an angle of +/- 5°.
6.8.2.2 Optional manual electronic inclination alignment
After aligning the rotating laser approximately and setting the inclination as described above, alignment of the
PR 300-HV2S can be optimized through use of Hilti's patented manual electronic alignment system.
1. Position the PRA 300 centrally opposite the PR 300-HV2S at the end of the inclined plane. It can be held still by
hand or fixed in place with the aid of the PRA 83.
NOTE The detection area must be aligned with the second reference point.
2. Activate manual electronic inclination alignment on the PR 300-HV2S by pressing the "Electronic inclination
alignment" key.
If the arrows for electronic inclination alignment blink, the PRA 300 is receiving no laser beam from the
PR 300-HV2S.
3. If the left arrow lights, turn the PR 300-HV2S clockwise.
4. If the right arrow lights, turn the PR 300-HV2S counter-clockwise.
When both arrows light, the PRA 300 is correctly aligned.
After successful alignment (both arrows light constantly for 10 seconds), the function ends automatically.
5. Then secure the rotating laser on the tripod so that it cannot be inadvertently moved out of position.
6. You can also end electronic inclination alignment by pressing the "End manual electronic inclination alignment"
key.
NOTE There may be divergence between the results obtained by approximate alignment with the aid of the
visual sighting method (using the front and rear sights) and fine alignment with the aid of manual electronic
inclination alignment. As the manual electronic method is more accurate than the visual method, we recommend
that electronic inclination alignment is always used as the reference.
6.8.3 Measuring a given inclination automatically 16
With this function you can create an inclined laser plane between 2 points automatically and determine the angle of
inclination between these points.
1. Set up the rotating laser at the top edge of the inclined plane as described in 6.8.1.
2. Mount the laser receiver with the PRA 83 receiver holder, for example, on the PUA 53 telescopic staff.
3. Position the receiver immediately in front of the rotating laser, bring it into alignment with the laser plane at the
correct height, and then secure it at the second reference point on the telescopic staff.
4. Position the receiver on the telescopic staff at the lower edge of the inclined plane, click the "Automatic alignment"
key and confirm this by pressing
NOTE Double-click the AUTO key again to complete the alignment procedure.
The laser plane alignment procedure then begins. A constant signal tone is emitted while this is taking place.
5.
The direction of the search can be changed by pressing the "Automatic alignment" key
As soon as the laser beam strikes the detection area of the laser receiver, the beam is fixed at the position of the
marking notch (reference plane). Once the position is reached (i.e. the marking notch is found), a signal tone with
a duration of five seconds indicates that the process is complete.
The "Automatic alignment" symbol is no longer shown in the display on the laser receiver and the receiver
switches automatically to normal operating mode.
The new inclination is shown in the display on the laser receiver.
6. Read the inclination between the two points (positions of the rotating laser and the laser receiver) from the display
of the laser receiver.
NOTE Optionally, following this, Auto E-targeting can be carried out. 6.8.2.1
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once.