AccuLine Pro 40-6910 Instruction Manual - Page 7

Browse online or download pdf Instruction Manual for Laser Level AccuLine Pro 40-6910. AccuLine Pro 40-6910 16 pages. 22x builder’s transit level

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2595H

7/29/09

With an adjusting screw "A" facing to the right

of the bubble and with telescope directly in

line with two of the three leveling screws,

note to which side the bubble is off. If to the

left, loosen screw "B" and tighten screw "A"

very slightly to remove ONE-HALF the error.

Remove the other half of the error with the two level screws in line

with the telescope. If the bubble is still not exactly centered, repeat

the procedure. If bubble is off to the right, loosen screw "A" and

tighten screw "B". Otherwise the procedure is identical.

5.2 Instrument accuracy check

Set up the instrument in an area that is as level as possible and which is

about 220 ft. long. Place two matching level rods about 200 ft. apart

with the faces toward each other. Position and level the instrument so

that the distance from the instrument to each rod is the same. (Fig. 1)

Take a reading on each rod with the instrument. Note the difference

and record them. Next, move the instrument to another point in line with

the two level rods as shown in Fig. 2. Level the instrument and take

readings on the two level rods. The difference should be the same

(A-A should equal B-B). The difference between A-A and B-B is

the instrument error at 200 feet.

10:15 AM

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Bubble

level

screws

Fig. 1

Fig. 2