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7. Testing the accuracy of the device
Test the accuracy of the REC LRD0 / LGD0 hand-held receiver before carrying out every measurement.
Before starting the test, allow the device to acclimatise to the environmental conditions.
1. Place line laser on a stable surface, e.g. tripod, adjust this and
turn it on (pulse mode).
2. Turn the front face of the receiver towards the laser device and
ensure that the receiver window is vertical to the line plane.
Move the receiver up and down until a signal sounds and/or until
direction arrows become visible on the display.
Align the receiver to the marking point (if an unbroken signal sound
is audible and/or if only the central bar is still visible, the marking
point is exactly on the laser beam).
Mark height
of the laser beam using a pen at the marking points.
3. Turn the receiver 180° and ensure that the receiver window is
vertical to the line plane.
Move the receiver up and down until a signal sounds and/or until
direction arrows become visible on the display.
Align the receiver to the marking point (if an unbroken signal
sound is audible and/or if only the central bar is still visible, the
marking point is exactly on the laser beam).
Mark height
of the laser beam using a pen at the marking points.
The vertical distance ‚d‘ between marking points
and
may be
a max. of 0.5 mm in the „Fine“ level of accuracy or 2.0 mm in the
„Rough“ level of accuracy.
If the result is more than 0.5 mm or 2.0 mm, the device must be
readjusted. Please contact your dealer.
1
180°
1
2
d
2
1
1
180°
1
2
d
2
1
1
180°
1
2
d
2
1
