Indirect Measurements; Using Two Points; Using Three Points (Total Height) - RIDGID micro LM-400 Manual Del Operario

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micro LM-400 Laser Distance Meter
2. Press ON/Measurement Button (
3. Press ON/Measurement Button again to take the second measurement
(width).
4. Press ON/Measurement Button again to take the third measurement (height).
5. The result of the volume calculation is displayed in the summary line.

Indirect Measurements

Indirect measurements are used when a direct measurement is not possible. In-
direct measurements are calculated from measurements of the hypotenuse and
one side of a right triangle (triangle with a 90 degree angle). For instance, if cal-
culating the height of a wall from the ground, measurements would be taken to the
top of the wall (hypotenuse), and perpendicular to the line between the two meas-
urement points at the wall base (side). From these two measurements, the dis-
tance between the two measurement points is calculated.
Indirect measurements are less accurate than direct measurements. For greatest
accuracy with Indirect Measurements, hold the micro LM-400 in the same position
(only changing angle) for all measurements. Make sure that the laser beam is per-
pendicular to the line between the measurement points when measuring the side
of the triangle. All measurements need to be to points on a single straight line.

Using Two Points

1
2
Figure 8 – Indirect Measurement Using Two Points
1. Press Indirect Measurement Button (
the display. The distance to be measured will flash in the symbol.
2. Press ON/Measurement Button (
the upper point (1) and trigger the measurement. The measurement will be
displayed in the first line.
3. Keeping the instrument as perpendicular to the line between the measure-
ments as possible (with the use of spirit level), Press ON/Measurement But-
ton again to measure the distance result of the horizontal point (2). The
measurement will be displayed in the second line.
4. The result of the calculation is displayed in summary line.

Using Three Points (Total Height)

3
2
1
Figure 9 – Indirect Measurement Using Three Points (Total Height)
12
) to take the first measurement (length).
) once. The symbol (
) to turn ON the laser, aim the laser at
) will show in