Hilti PR 30-HVS Mode D'emploi page 31

2.2 Features
The tool makes it possible for a single person to level or align in any plane quickly and with great accuracy.
The tool levels itself automatically after switching on. The laser beam is emitted only when the specified accuracy has
been achieved.
LEDs indicate the current operating status.
The tool is powered by a rechargeable Li‑ion battery which can be charged while the tool is in operation.
en 2.3 Combined use of the PRA 30 remote control / laser receiver
The PRA 30 is a combined remote control unit and laser receiver. It can be used to control the PR 30-HVS rotating
laser over great distances. The PRA 30 also serves as a laser receiver and can thus be used to detect and indicate the
laser beam at great distance.
2.4 Digital distance measurement display
The laser receiver displays digitally the distance between the laser plane and the marking notch. This allows the user to
determine the exact position of the receiver relative to the laser plane, with millimeter accuracy, in a single operation.
2.5 Automatic alignment and surveillance
Using the PR 30-HVS and the PRA 30, a person working alone can align the laser plane automatically with a certain
point with great accuracy. The tool detects the applicable alignment (horizontal, inclined or vertical) automatically and
uses the automatic alignment function accordingly (horizontal with the PRA 90 plus inclination) or automatic alignment
with subsequent monitoring of the plane (vertical). With the aid of the PRA 30, the surveillance function checks
alignment of the laser plane at regular intervals in order to avoid possible deviations due to temperature fluctuations,
wind or similar. The surveillance function can be deactivated.
2.6 Digital inclination display with patented electronic inclination alignment
The digital inclination display is capable of indicating an inclination of up to 21.3% when the PR 30-HVS is operating in
inclined mode. This makes it possible to set out and check slopes without having to make any calculations. Electronic
inclination alignment allows optimum inclination accuracy.
2.7 Shock warning
The shock warning function is activated two minutes after the tool has leveled itself after switching on. If a button
is pressed within these two minutes, the two-minute delay begins again. The tool switches to warning mode if it is
brought out of level while in operation (due to vibration or an impact); all LEDs begin to blink and the laser switches
off (the head stops rotating).
2.8 Automatic cut-out
The laser does not switch on and all LEDs blink if the tool is set up outside its self-leveling range (±5°) or if movement
is blocked mechanically.
The tool can be set up on a tripod with a 5/8" thread or stood directly on some other steady surface (free of vibration).
When automatic leveling is activated for one or both axes, the built-in servo system ensures that the specified accuracy
is maintained. The tool switches itself off when automatic leveling cannot be achieved (tool set up outside its leveling
range or physical impediment of the mechanism) or when knocked off level (see "Shock warning" section).
NOTE
If the correct level cannot be achieved, the laser switches itself off and all LEDs blink.
2.9 Items supplied
1 PR 30-HVS rotating laser
1 PRA 30 (03) laser receiver / remote control
1 PRA 80 or PRA 83 laser receiver holder
1 Operating instructions
1 PRA 84 Li‑ion battery
1 PUA 81 AC adapter
2 Batteries (size AA cells)
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