Bosch GLM 40 Use and Care Manual download pdf (Page 16)

-16-

INFLUENCE EFFECTS ON THE

MEASURING RESULT

Due to physical effects, faulty

measurements cannot be

excluded when measuring on

different surfaces. Included here

are:

– Transparent surfaces (e.g.,

glass, water),

– Reflecting surfaces (e.g.,

polished metal, glass),

– Porous surfaces (e.g.

insulation materials),

– Structured surfaces (e.g.,

roughcast, natural stone).

If required, use the laser target

plate 18 (accessory) on these

surfaces.

Furthermore, faulty

measurements are also possible

when sighting inclined target

surfaces.

Also, air layers with varying

temperatures or indirectly

received reflections can affect

the measured value.

ACCURACY CHECK OF THE

DISTANCE MEASUREMENT

The accuracy of the distance

measurement can be checked as

follows:

– Select a permanently

unchangeable measuring section

with a length of approx. 1 to

30-ft; its length must be precisely

known (e.g. the width of a room

or a door opening).

The measuring distance must be

indoors; the target surface for the

measurement must be smooth

and reflect well.

– Measure the distance 10 times.

The deviation of the individual

measurements from the mean

value must not exceed ±3/32”

(max.). Log the measurements,

so that you can compare their

accuracy at a later point of time.

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 51 52

Comments to this Manuals

No comments