Leica L2, P5 Checking the accuracy of the Leica en Lino, Checking the accuracy of the levelling

Checking the accuracy of the Leica en Lino

)Check the accuracy of your Leica Lino regu- larly and particularly before important measuring tasks.

Checking the accuracy of the levelling

A1	B1
2.5 m	2.5 m

Set the instrument on a tripod half-way between two walls (A+B) that are approx. 5 m apart.

Place the Lock switch 3 in the "Unlocked" ( ) position.

Direct the instrument at wall A and switch on the instrument. Activate the horizontal laser line or laser dot and mark the position of the line or the dot on wall A (-> A1).

Rotate the instrument by 180° and mark the hori- zontal laser line or the laser dot in exactly the same way on wall B (-> B1).

A1	B1
A2	B2
	5 m

Then place the instrument at the same elevation as close as possible to wall A and again mark the hori- zontal laser line or the laser dot on wall A (-> A2) . Rotate the instrument by 180° again and mark the laser on wall B (-> B2). Measure the distances of the marked points A1-A2 and B1-B2. Calculate the differ- ence of the two measurements. If the difference does not exceed 2 mm, then the Leica Lino is within tolerance.

(A1 - A2) - (B1 - B2) ≤ 2 mm

Operation

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Leica Lino 757665g en