Hilti PR 3-HVSG, Manual, Page: 10 / 17

17
In inclined plane mode the inclination can be set manually within a range of ± 5° with the aid of the PRA 2
remote control unit. Alternatively, in inclined plane mode, the slope adapter can be used to achieve slopes
of up to 60%.
Thanks to its built-in shock warning function the tool switches to warning mode if knocked off level, e.g.due
to vibration or impact while in operation (warning mode becomes functional two minutes after completion of
self-leveling). All LEDs blink, the laser beam stops rotating and the laser is switched off.
Combination with other devices
The PRA 2 remote control unit can be used to control the rotating laser conveniently from a distance. The
remote control function can also be used to adjust alignment of the laser beam.
Hilti laser receivers can be used to detect and indicate the laser beam at great distances. For further
information, please refer to the operating instructions for the laser receiver.
3.4 LED indicators
The rotating laser is equipped with an LED display.
Status Meaning
All LEDs blink • The tool has been bumped, knocked off level or
is subject to some other error.
The auto-leveling LED blinks green • The tool is in the leveling phase.
The auto-leveling LED lights green constantly • The tool has leveled itself / is operating normally.
The shock warning LED lights orange constantly • Shock warning mode is deactivated.
The inclination LED lights orange constantly • Inclined plane mode is active.
3.5 Li-ion battery charge state display
The Li-ion battery features a charge status display.
Status Meaning
4 LEDs light. • Charge status: 75 % to 100 %
3 LEDs light. • Charge status: 50 % to 75 %
2 LEDs light. • Charge status: 25 % to 50 %
1 LED lights. • Charge status: 10 % to 25 %
1 LED blinks. • Charge status: < 10 %
Note
When the tool is in operation, battery charge state is indicated in the display on the tool.
When not in operation, battery charge state can be indicated by lightly pressing one if the release
buttons.
During charging, charge state is indicated by the LEDs on the battery (please refer to the operating
instructions for the charger).
3.6 Items supplied
PR 3-HVSG rotating laser, PRA 2 remote control, PRA 54 target plate, 2 batteries (size AA), 2 manufacturer’s
certificates, operating instructions.
Note
You can find other system products approved for your product at your local Hilti Center or online at:
www.hilti.com .
4 Technical data
Receiving range (diameter) 150 m
(492 ft)
Communication range (PRA 2) 30 m
(98 ft - 10 in)
Printed: 19.10.2015 | Doc-Nr: PUB / 5206781 / 000 / 02