General Tools and Instruments LDM60 User Manual

Page 21

Fig. 10. A two-input indirect

measurement of the
height of a tree standing
4.990 meters tall

To measure the height of an object using triangulation
with three inputs:

1. Use the

button to choose the front edge of the meter as the

measurement reference. Also make sure the laser is on.

2. Press the

button twice. A

icon will appear on the left

side of the display with the upper hypotenuse flashing.

3. Aim the laser at the top of the object and press the

button.

The distance measured will appear on the top line of the
display and the horizontal line bisecting the on-screen triangle
will begin flashing.

4. Without moving the meter and keeping it as horizontal as

possible, aim the laser directly at the object and press the
button. The distance measured will appear on the second line
of the display, the horizontal line will stop flashing, and the
lower hypotenuse will begin flashing.

5. Without moving the meter, aim the laser at the bottom of the

object and press the

button. The distance measured will

appear on the third line of the display and the height of the
object will appear on the bottom (summary) line. The final
display will look similar to Fig. 11.

MEAS

␪

5.846

4.990

7.687