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AutoCross Laser 2
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Preparing the calibration check:
It is possible for you to check the calibration of the laser.
To do this, position the device midway between 2 walls,
which must be at least 5 metres apart. Switch the device
on (indicator lamp 11 off). The best calibration results
are achieved if the device is mounted on a tripod.
1. Mark point A1 on the wall.
2. Turn the device through 180° and mark point A2.
You now have a horizontal reference between points
A1 and A2.
1.
A
1
2.
Performing the calibration check:
3. Position the device as near as possible to the wall at
the height of point A1. Now adjust the device.
4. Turn the device through 180° and mark point A3.
The difference between points A2 and A3 is the
tolerance.
3.
A
1
4.
Note: If points A2 and A3 are more than 3 mm / 10 m
apart on either, the device is in need of calibration.
Contact your authorised dealer or else the UMAREX-
LASERLINER Service Department.
Checking the vertical line: Position the device about 5
m from a wall. Fix a plumb bob with a line of 2.5 m length
on the wall, making sure that the bob can swing freely.
Switch on the device and align the vertical laser to the
plumb line. The precision is within the specified tolerance if
the deviation between the laser line and the plumb line is
not greater than ± 1.5 mm.
Checking the horizontal line: Position the device about 5
m from a wall and switch on the cross laser. Mark point B
on the wall. Turn the laser cross approx. 2.5 m to the right
and mark point C. Check whether the horizontal line from
point C is level with point B to
within ± 2 mm. Repeat the pro-
cess by turning the laser to the
left.
12
ENGLISH
A
2
A
3
2,5 m
B
A
2
A
2
A
2
A
3
C
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