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Operation
2.
Press the ° %/In/Ft button to shift to in./Ft unit. Figures 4 and 5
show the pitch H=67/8 inch (H=L*tan α, L=1feet, α = 30.0°).
3.
Press the ° %/In/Ft button again to get the slope of the surface
H=57.7cm (H=L*tan α, L=100 cm, α=30.0°), as shown in Figures
6 and 7.
If the angle is greater than 45° but less than 90°, the slope of the
surface is H=L / tan α (see Figure 8).
RELATIVE ANGLE MEASUREMENT
1.
Lay the digital level on the surface.
2.
Turn on the level. The LCD screen indicates the absolute angle between true level and the surface.
3.
Push the Reset button to enter the relative angle measurement mode. The display reads 0.0°, while its top left corner
shows the zero line. Move it to another working surface, and the relative angle between the two working surfaces will
be displayed.
4.
To change the display units for the measured angle, see Changing Display Units in the Operation section.
5.
To return to absolute angle measurement, turn off the level and power it on again.
ABSOLUTE ANGLE MEASUREMENT
1.
Lay the digital level on a surface, ensuring the base sits flat against the surface. The level has three magnets in the
bottom to secure it to steel surfaces. If necessary, you can turn the digital level upside down during measuring. The
display will continue to read normally.
2.
When you turn the level on, the display figure indicates the absolute angle between true level and the surface. By
observing the vials, you can judge whether the surface is horizontal or vertical.
3.
While the angle changes, the bias on the display shows the tilt trend of the tool while the right arrow points upward or
downward.
4.
To activate the beeper, push the
deactivate, push it again.
5.
Press the Memory button to save the measured angle in the memory. This level can remember the last nine groups of
data measured (from M1 to M9, in turn).
6.
Press the MR button to recall these angles. The records will be read out from the latest to the earliest (M9 to M1) in turn.
7.
To change display units used for the measured angle, see the Changing Display Units section of the Operation section.
To make a new measurement, press the Memory button to return to measurement mode.
8.
button. The beeper will sound at level, 45°, plumb, and the last saved angle. To
H = L * tan
Figure 4
Figure 5
H = L * tan
Figure 6
Figure 7
α
H
H = L * tan α
(45˚ < α < 90˚)
L
Figure 8
α
H
α
L
α
H
α
L
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