Leica Lino L4P1, User Manual, Page: 11 / 20

Accuracy Check
Ac c u ra c y Ch e c k
Check the accuracy of your Leica Lino L4P1
regularly and particularly before important
measuring tasks. Check Levelling lock
before checking the accuracy.
Levelling
Checking the accuracy of the levelling
Set the instrument on a tripod half-way between
two walls (A+B) that are approx. 5 m apart. Place
the lock switch in the "Unlocked" position. Direct
the instrument at wall A and switch on the instru-
ment. Activate the horizontal laser line or laser
point and mark the position of the line or the point
on wall (A1). Rotate the instrument by 180° and
mark the horizontal laser line or the laser point in
exactly the same way on wall (B1).
Then place the instrument at the same elevation
as close as possible to wall A and again mark the
horizontal laser line or the laser point on wall A
(A2). Rotate the instrument by 180° again and
mark the laser on wall B (B2). Measure the dis-
tances of the marked points A1-A2 and B1-B2.
Calculate the difference of the two meas-
urements.
|(A1 - A2) - (B1 - B2)| <=2 mm
If the difference does not exceed 2 mm, then the
Leica Lino L4P1 is within tolerance.
Leica Lino L4P1
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