Levenhuk Ermenrich PL30 Guia Del Usuario página 5

Distance measuring
•
Focus the device on the leveling rod. Record the values of the upper and lower lines of the measuring crosshairs (Fig. 5).
•
Multiply the difference in values by 100 to get the distance between the device and the leveling rod.
For example:
The distance between the device and the rod in Figure 5 is 30.5m.
(1.347 – 1.042) x 100 = 30.5
Angle measurement
•
Focus the device on the rod A. Rotate the horizontal circle (2) until the "0" mark is aligned with the reference mark (3) (fig. 6).
•
Focus the device on the rod B. Record the angle measurement of the reference mark (3) of the horizontal circle (Fig. 6).
For example:
The angle value in Figure 6 is 45°.
x° = 45°
Bubble level calibration
•
Check the bubble level (10). Use the leveling screws (9) to position the bubble level (10) in the center. Turn the device 180 degrees. If the
bubble level stays in the center, the device is calibrated.
•
If the bubble level is not in the center, rotate the leveling screws (9) to move the bubble level. The bubble should be placed at least on the
½ between the center and the outer end of the circle (Fig. 7).
•
Then, using the hexagon, bring the bubble to the center by turning the leveling screws (Fig. 8).
•
Repeat these steps until the bubble level is calibrated.
Angle calibration
Place the leveling rods A and B at a distance of 30m from each other. Place the optical level between them (Fig. 9). Measure the height values
of rods A and B, and then calculate the difference.
For example (Fig. 9):
a1 = 1.937m
b1 = 1.689m
so the difference (d) is a1 – b1 = 0.248.
Upper
and lower
lines
A
B
x
Horizontal circle
Figure 7
Figure 5
A B
Horizontal
Horizontal
circle
circle
reference reference
mark
mark
Horizontal circle
Figure 6
Figure 8
5
Upper line
1.347
Lower line
1.042