Hilti PR 300-HV2S, Operating Instructions Manual, Page: 25 / 31

Last previously used inclination value
X-axis
Y-axis
The inclination can be set manually, automatically, or by using the PRA 79 slope adapter.
6.8.1 Setting up
1. Mount the rotating laser on a tripod.
2. Position the rotating laser at the first reference point either at the upper edge or lower edge of the inclined plane.
3. Position yourself behind the tool, facing the control panel.
4. With the aid of the visual sighting method (using the front and rear sights on the head of the tool), aim the tool
roughly at the second reference point, keeping it parallel to the inclined plane.
5. Switch the laser receiver on .
6. Switch the tool on and then press the “Inclined plane mode” key .
The “Inclined plane mode” LED then lights.
The laser beam switches on as soon as the tool has leveled itself. The control panel of the PRA 300 then offers
the following ways of adjusting the inclination:
– Digital adjustment of the X or Y values
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.
– Switch off the leveling control (to allow use with the PRA 79 slope adapter)
– Recall the last previously used value .
For more precise adjustment, first set the inclination and then carry out manual electronic inclination alignment
(see 6.8.2.1). Inclination can be set and displayed on the PRA 300 in %, ⁰⁄₀₀ or in ° (see 6.5.4).
6.8.2 Setting the inclination manually (digital entry)
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Inclination values of up to 20% can be entered with the laser receiver / remote control unit. The display on the laser
receiver shows the angle of inclination. If a slope adapter or an already inclined tripod is also used, inclinations of up
to 25% can be achieved.
You can set the X and Y inclinations at the same time or for just one of the two axes.
1. Use the arrow keys
or to select soft key X and then confirm your choice by pressing .
2. Then use the arrow keys or to select the digit or character that you wish to set and activate it by pressing
.
3. Enter the desired value by way of the arrow keys or and confirm each digit by pressing – only then can
a new digit be selected.
4. After entering the desired value, confirm your input by pressing .
5. Use the arrow keys to navigate to the OK key and press .
6. You can now enter the Y-value or go straight to “Confirm” . The laser beam will be adjusted only when you
confirm this step.
NOTE Alternatively, before confirming, you can press the “Back” key and return to the main menu, thereby
deleting the entries you have made.
6.8.2.1 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.
en
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Printed: 28.08.2015 | Doc-Nr: PUB / 5244524 / 000 / 00