18
| English
2 m
d
– Rotate the measuring tool 180° and position it on the other side of the
door opening, directly behind point
Ⅱ
. Allow the measuring tool to level in
and align the vertical laser line in such a way that its centre passes
through points
Ⅰ
and
Ⅱ
exactly.
– Mark the centre of the laser line on the upper edge of the door opening as
point
Ⅳ
.
– The discrepancy
d
between the two marked points
Ⅲ
and
Ⅳ
reveals the
actual vertical deviation of the measuring tool.
– Measure the height of the door opening.
You can calculate the maximum permitted deviation as follows:
Doubled height of the door opening ×
0.5
mm/m
Example: At a door opening height of
2
m, the maximum deviation amounts
to
2 ×
2
m × ±
0.5
mm/m = ±
2
mm. The points
Ⅲ
and
Ⅳ
must therefore be no
further than
2
mm from each other.
Working Advice
u
Only the centre of the laser line must be used for marking.
The width
of the laser line changes depending on the distance.
Working with the Tripod (Accessory)
A tripod offers a stable, height-adjustable support surface for measuring.
Place the measuring tool with the 1/4" tripod mount
(12)
on the thread of
1 609 92A 58R | (04.03.2020)
Bosch Power Tools
