Bosch GLL 2-10 G - Инструкция по эксплуатации - Страница 16

16

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2,5 m

5,0 m

5,0 m

5,0 

m

5,0 m

A

B

– At a distance of 2.5 m from the measuring tool, mark the

centre of the laser line on both walls (point 

Ⅰ

 on wall A and

point 

Ⅱ

 on wall B).

2,5 m

d

5,0 m

2,5 

m

5,0 

m

A

B

– Set up the measuring tool at a 5 m distance and rotated

by 180° and allow it to level in.

– Align the height of the measuring tool (using the tripod or

by placing objects underneath as required) so that the
centre of the laser line exactly hits the previously marked
point 

Ⅱ

 on wall B.

– Mark the centre of the laser line on wall A as point 

Ⅲ

 (ver-

tically above or below point 

Ⅰ

).

– The discrepancy 

d

 between the two marked points 

Ⅰ

 and

Ⅲ

 on wall A reveals the actual horizontal deviation of the

measuring tool.

The maximum permitted deviation on the measuring dis-
tance of 2 × 

5

 m = 

10

 m is as follows: 

10

 m × ±

0.3

 mm/m = ±

3

 mm. The discrepancy 

d

 between

points 

Ⅰ

 and 

Ⅲ

 must therefore amount to no more than

3

 mm.

Checking the Level Accuracy of the Vertical Line

For this check, you will need a door opening (on solid
ground) which has at least 2.5 m of space either side of the
door.
– Place the measuring tool 2.5 m away from the door open-

ing on a firm, flat surface (not on a tripod). Switch on the
measuring tool in the mode with automatic levelling. Se-
lect vertical mode and allow the measuring tool to level in.

2,5 m

2,5 m

– Mark the centre of the vertical laser line on the floor of the

door opening (point 

Ⅰ

), 5 m away on the other side of the

door opening (point 

Ⅱ

) and on the upper edge of the door

opening (point 

Ⅲ

).

2 m

d

– Set up the measuring tool 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 fol-
lows:
Doubled height of the door opening × 

0.3

 mm/m

Example: At a door opening height of 

2

 m, the maximum de-

viation amounts to
2 × 

2

 m × ±

0.3

 mm/m = ±

1.2

 mm. The points 

Ⅲ

 and 

Ⅳ

must therefore be no further than 

1.2

 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.

1 609 92A 5TD | (01.07.2020)

Bosch Power Tools