Bosch GCL100-80C User Manual

-19-
The maximum permitted deviation dmax can
be calculated as follows:
d
max
= double the distance between the walls
x 0.004 in/ft
Example: If the distance between the walls is
16 ft (5 m), the maximum deviation is
d
max
= 2 x 16 ft x 0.004 in/ft = 1/8 in. The
marks must therefore be maximum 1/8 in.
apart.
Checking the Leveling Accuracy
of the Horizontal Line
For the check, a free surface of approx. 16 x
16 ft (5 x 5 m) is required.
– Set up the measuring tool on a firm, level
surface between both walls A and B. Allow
the measuring tool to level in while in
horizontal operation.
8 ft (2.5 m)
5
A
B
16 ft (5 m)
– At a distance of 8 ft (2.5 m) from the
measuring tool, mark the centre of the laser
line (point I on wall A and point II on wall B)
on both walls.
2,5 m
d
5,0 m
2,5 m
A
B
8 ft (2.5 m)
16 ft (5 m)
– Set up the measuring tool 16 ft (5 m) away
turned by 180° and allow it to level in.
– Align the height of the measuring
tool (using a tripod or by underlaying, if
required) in such a manner that the centre
of the laser line is projected exactly against
the previously marked point II on wall B.
– Mark the centre of the laser line as point
III (vertically above or below point I) on the
wall A.
– The difference d of both marked points
I and III on wall A indicates the actual
deviation of the measuring tool from the
level plane.
The maximum permitted deviation dmax can
be calculated as follows:
d
max
= double the distance between the walls
x 0.004 in/ft
Example: If the distance between the walls is
16 ft (5 m), the maximum deviation is
d
max
= 2 x 16 ft x 0.004 in/ft = 1/8 in. The
marks must therefore be maximum 1/8 in.
apart.
Checking the Leveling Accuracy
of the Vertical Line
For this check, a door opening is required
with at least 8 ft (2.5 m) of space (on a firm
surface) to each side of the door.
– Position the tool on a firm, level surface
(not on a tripod) 8 ft (2.5 m) away from
the door opening. Allow the tool to level in
while in vertical operation with automatic
leveling, and direct the laser beam at the
door opening.
8 ft (2.5 m)
8 ft (2.5 m)
2610050715 5-19 GCL100-80CCG.indd 19 6/6/19 7:06 AM

Bosch GCL100-80C Specifications

General

Brand	Bosch
Model	GCL100-80C
Category	Laser Level
Language	English