Technical Data; Safety Instructions - Hilti PRA 22 Mode D'emploi

3 Technical data

Right of technical changes reserved.
NOTE
Right of technical changes reserved.
Operating range (diameter)
Laser plane receiving range (10 m/ 30 ft)
Audible signal generator
Liquid crystal display
Receiving window
Center indication from top edge of casing
Marking notch (center)
Receiver automatic power-off
Dimensions
Weight
Power supply
Battery life
Operating temperature range
Storage temperature
Protection class
Receiver thread

4 Safety instructions

In addition to the information relevant to safety given
in each of the sections of these operating instructions,
the following points must be strictly observed at all
times.
4.1 General safety rules
a) Keep other persons, especially children, away
from the area in which the work is being carried
out.
b) Check the condition of the tool before use. If the
tool is found to be damaged, have it repaired at a
Hilti service center.
c) Have the tool repaired only at a Hilti service cen-
ter.
d) Do not render safety devices ineffective and do
not remove information and warning notices.
e) The tool must be checked at a Hilti service center
after it has been dropped or subjected to other
mechanical stresses.
f) If mounting on an adapter, check that the tool is
screwed on securely.
g) To avoid measurement errors, the receiving area
must be kept clean.
h) Although the tool is designed for the tough condi-
tions of jobsite use, as with other optical and elec-
2...150 m (6 to 450 ft)
Fine: ± 1.0 mm (0.04 in) / Medium:± 2.0 mm (0.08 in) /
Standard: ± 3.0 mm (0.12 in)
2 volume levels plus mute setting
On both sides
40 mm (1¾ in)
45 mm (1¾ in)
On both sides
When no beam is detected : 5 min
151 mm X 78 mm X 31 mm (5.9" x 3.1" x 1.2")
Including battery: 0.231 kg (0.4 lbs)
Block: 9 V
Alkaline batteries, Temperature +20°C (+68 °F): 40 h
-20...+50°C (-4°F to 122°F)
-25...+60°C (-22°F to 140°F)
IP 64
in accordance with IEC 529
Metric: 5 X 10 mm (0.4 in)
tronic instruments (e.g. binoculars, spectacles,
cameras) it should be treated with care.
i) Although the tool is protected to prevent entry
of dampness, it should be wiped dry each time
before being put away in its transport container.
j) To avoid hearing damage, hold the tool as far
away as possible from your ear (and other per-
sons' ears).
k) To avoid confusion, check to ensure that no other
tool of the same or a similar kind is in use in the
immediate vicinity.
4.1.1 Electrical
a) Keep the batteries out of reach of children.
b) Do not allow the batteries to overheat and do not
expose them to fire. The batteries may explode or
release toxic substances.
c) Do not charge the batteries.
d) Do not solder the batteries into the tool.
en
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