Pra 30G Laser Receiver Display; Intended Use; Auto-Leveling; Automatic Alignment - Hilti PR 30-HVSG A12 Operating Instructions Manual

3.1.4 PRA 30G laser receiver display

Distance of the laser beam from the mark-
@
ing notch
Volume indicator
;
Indicator showing beam segments
=
switched off or on

3.2 Intended use

The product described is a rotating laser with a visible rotating laser beam. It can be operated by one person.
The tool is designed to be used to determine, transfer and check levels, verticals, slopes and right angles.
▶ Use only the Hilti B 12⁄2.6 Li-Ion battery for this product.
▶ Use only the Hilti C 4⁄12­50 charger for this product.

3.3 Auto-leveling

Auto-leveling takes place after the tool is switched on. LEDs indicate the current operating status. Auto-
leveling is active and can be deactivated by way of the
ground or floor, on a tripod, or with the aid of suitable mounting brackets.

3.4 Automatic alignment

Automatic alignment allows a single person to bring the laser plane into alignment with the laser receiver.
The rotating laser tool detects the applicable direction of alignment as follows:
• Horizontal in conjunction with the PRA 90 automatic tripod and PRA 30G laser receiver.
• Inclination in the X-axis in conjunction with the PRA 30G laser receiver.
• Vertical in conjunction with the PRA 30G laser receiver.
3.5 Inclination
Inclination can be carried out manually or automatically. The PRA 79 slope adapter can be used for larger
angles of inclination.
3.6 Surveillance function
The rotating laser monitors alignment of the laser plane in conjunction with the PRA 30G laser receiver. In
the event of an alignment deviation the system corrects the direction of the laser plane, keeping it at the
zero point of the laser receiver. The rotating laser corrects all errors caused by temperature fluctuations,
wind or other such influences. If the optical connection (line of sight) between the rotating laser and the laser
receiver is interrupted for longer than two minutes, the system indicates an error. During vertical alignment,
the surveillance function can be activated only via the AUTO menu.
3.7 Automatic switch-off
The tool switches off automatically if it is unable to level itself because the rotating laser:
• Is inclined too greatly relative to the horizontal plane (except when in inclined plane mode).
• Is blocked mechanically.
Printed: 29.09.2017 | Doc-Nr: PUB / 5376998 / 000 / 00
Battery status indicator
%
Accuracy indicator
&
Position of the receiver relative to the
(
height of the laser plane
button. The tool can be set up directly on the
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