OBJ_BUCH-2101-001.book Page 19 Friday, January 10, 2014 2:31 PM
The various operating modes are shown in the table below.
Symbol
Mode
Cross-line mode (see figures A and D): The measuring tool
generates a horizontal and a vertical laser line from the exit
opening 1.
Horizontal mode (see figure B): The measuring tool gener-
ates a horizontal laser line from the exit opening 1.
Vertical mode (see figure C): The measuring tool generates a
vertical laser line from the exit opening 1.
All modes can be selected both with and without automatic levelling.
Application
The measuring tool is used to determine and check horizontal and vertical
lines and to display inclined lines.
Working with Automatic Levelling
Position the measuring tool on a level, firm support or attach it to a tripod
14 or to the supplied holder.
For work with automatic levelling, push the switch for automatic levelling 2
to the
position. The automatic levelling indicator 6 lights up green
(
symbol/"green").
If the automatic levelling function is not possible, e.g. because the surface
on which the measuring tool stands deviates by more than 4° from the hor-
izontal plane, the laser lines flash and the indicator 6 lights up red.
If this is the case, set up the measuring tool in a level position and wait for
the self-levelling to take place. As soon as the measuring tool is once again
within the self-levelling range of ±4°, the laser lines light up continuously
and the automatic levelling indicator 6 lights up green.
When not within the self-levelling range of ±4°, working with automatic
levelling is not possible, because it cannot be assured that the laser lines
run at a right angle to each other.
In case of ground vibrations or position changes during operation, the
measuring tool is automatically levelled in again. To avoid errors, check the
position of the horizontal and vertical laser line with regard to the reference
points upon re-levelling.
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