Hilti PR 30-HVS Operating Instructions Manual page 42

7.6 Working in the vertical plane
1. When working in the vertical plane, mount the tool on a suitable tripod, facade adapter, batter board adapter or
wall bracket, with the control panel facing upwards. Alternatively, the tool can be stood on the rubber feet on the
rear grips.
NOTE The best wireless connection with the PRA 30 is provided by the side of the tool to the right of the control
panel.
NOTE In order to ensure that the tool's specified accuracy can be maintained, make sure that it is set up on a
level surface or mounted sufficiently level on the tripod or other accessory.
2. Use the visual sighting aids to adjust the tool so that its vertical axis is aligned in the required direction.
3. Press the on/off button.
After the tool has leveled itself automatically, it projects a stationary laser beam vertically downwards. This
projected point is a reference point (not a plumb point) and can be used to help position the tool.
4. Align the tool so that the projected laser point coincides exactly with a reference point (e.g. nail on a batter board).
5. Now line up the laser plane with the second reference point manually (see 7.6.1) or automatically (see 7.6.2).
The laser begins to rotate automatically as soon as you begin the alignment operation.
7.6.1 Manual alignment 6 12
1. Press the arrow buttons (Left / Right) on the laser receiver to bring the vertical plane manually into alignment.
7.6.2 Automatic alignment and surveillance 6 13
1. Hold the laser receiver with the marking notch at the desired alignment point and facing the rotating laser.
2. Double-click the "Automatic alignment" button. Double-click the button again to complete the procedure.
This double-click starts the process of bringing the laser plane into alignment. A constant signal tone is emitted
while this is taking place.
The direction of the search can be changed by pressing the "Automatic alignment" button.
As soon as the laser beam strikes the detection area of the laser receiver, the beam moves to 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 5 seconds indicates
that the process is complete.
The laser receiver switches automatically to surveillance mode and 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 marking plane is outside the leveling range of ±5°, direct line of sight between the rotating
laser and the laser receiver is obstructed for a long period or the alignment process is not completed successfully
within a time of 2 minutes, then short signal tones are emitted, the laser stops rotating and the "Automatic
alignment" symbol goes out. This indicates cancellation of the automatic alignment process.
3. Double-click the "Automatic alignment" button to leave surveillance mode.
7.7 Working with slopes
7.7.1 Setting up
NOTE
The slope can be set manually, automatically, or by using the PRA 79 slope adapter.
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