Hilti PR 3-HVSG A12, Manual

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6 English 2149767
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3.1.3 PRA 2 remote control unit 2
Key
¡
LED: Command sent
Q
Button: Speed of rotation
W
Button: Line direction (left/right)
E
Button: Line function
R
Servo buttons (+/-)
3.2 Intended use
The product described is a rotating laser tool with a visible green rotating laser beam and a reference beam
set at 90° to the main beam. The rotating laser can be used vertically, horizontally and for inclined planes.
The tool is designed to be used to determine, transfer and check levels, verticals, slopes and right angles.
Examples of its uses are: transferring datum lines and height marks, determining right angles for walls,
vertical alignment on reference points and setting out slopes.
▶
Use only the Hilti B 12/2.6 and respectively the B 12­30 Li ion battery for this product.
▶
Use only the Hilti C 4⁄12­50 charger for this product.
3.3 Features
The tool allows a single person to level or align in any plane quickly and with great accuracy.
4 speeds of rotation are available for use (0, 90, 300, 600 /min). The preset speed of rotation is 300 /min.
The tool is equipped with the following operating status indicators: auto-leveling LED, inclination angle LED
and shock warning LED.
When automatic leveling is activated for one or both axes, the built-in servo system ensures that the specified
accuracy is maintained. An automatic cut-out is activated when the tool is unable to level itself (i.e. when
the tool is outside its self-leveling range or movement is blocked mechanically) or the tool is knocked off
level (by vibration or an impact). When the tool has switched itself off, rotation stops and all LEDs blink.
Depending on the working distance and ambient light, visibility of the laser beam may be impaired. Visibility
of the laser beam can be improved through use of the target plate. In situations where laser beam visibility
is reduced, e.g. in bright sunlight, use of the laser receiver (accessory) is recommended.
Leveling
After switching on, the tool levels itself automatically within a range of ±5° by way of two built-in servo
motors. LEDs indicate the tool’s current operating status. The tool can be set up directly on the ground or
floor, on a tripod, or with the aid of suitable mounting brackets.
Vertical alignment is carried out automatically. The +/- buttons on the PRA 2 remote control unit can be
used to bring the vertical plane manually into alignment (pivot).
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.