Operation - Hilti PMC 46 Operating Instructions Manual

7 Operation

NOTE
en
To achieve maximum accuracy, project the line onto a
vertical, even surface. When doing so, set up the tool at
90° to the surface.
7.1 Operation
7.1.1 Switching the laser beams on
Press the on-button once.
7.1.2 Switching the tool / laser beams off
Press and hold the on-button until the laser beam is no
longer visible and the LED no longer lights.
NOTE
The tool switches itself off automatically after approx. 15
min.
7.1.3 Deactivating the automatic power-off feature
Press and hold the on-button for approx. 4 sec. until the
laser beam blinks three times as confirmation.
NOTE
The tool will be switched off when the on-button is
pressed or when the batteries are exhausted.
7.1.4 Inclined line function
1. Lay the tool on its back.
The tool does not level itself automatically.
The tool blinks every two seconds.
7.1.5 Using the tool with the PMA 31 laser receiver
For further information, please refer to the PMA 31 oper-
ating instructions.
7.2 Examples of applications
7.2.1 Transferring heights 3
7.2.2 Setting out drywall track for a partition
wall 4
7.2.3 Aligning pipes vertically 5
7.2.4 Aligning radiators 6
7.2.5 Aligning door and window frames 7
16
7.2.6 Marking out the position of light fittings 8
7.3 Checking
7.3.1 Checking the plumb point 9
1. Make a mark on the floor (a cross) in a high room
(e.g. in a stairwell or hallway with a height of 5–10
m).
2. Place the tool on a smooth, level (horizontal) surface.
3. Switch the tool on.
4. Position the tool with the lower beam on the center
of the cross.
5. Mark the position of the vertical beam on the ceiling.
Attach a piece of paper to the ceiling before making
the mark.
6. Pivot the tool through 90°.
NOTE The lower plumb beam must remain on the
center of the cross.
7. Mark the position of the vertical beam on the ceiling.
8. Repeat the procedure after pivoting the tool through
180° and 270°.
NOTE The resulting 4 marks form a circle in which
the intersection of the diagonals d1 (1 – 3) and d2 (2
– 4) marks the exact center of the plumb point.
9. Calculate the accuracy as described in section
7.3.1.1.
7.3.1.1 Calculation of accuracy
10
R = x
RH [m]
30
R = x
RH [ft]
The result (R) provided by this formula (RH = room height)
refers to the tool's accuracy "in mm at 10 m" (formula
(1)). This result (R) should be within the specification for
the tool (3 mm at 10 m).
7.3.2 Checking leveling of the forward beam 10
1. Place the tool on a smooth, level surface approx.
20 cm from the wall (A) with the laser beam directed
toward the wall (A).
2. Mark the point of intersection of the laser lines on
the wall (A) with a cross.
3. Pivot the tool through 180° and mark the point of
intersection of the laser lines on the opposite wall
(B) with a cross.
(d1 + d2) [mm]
(1)
4
(d1 + d2) [inch]
(2)
4