Prokit's Industries NT-6580 - Manual (Page 7)

Volume Measurement
Press twice, the symbol appears on display.
Following the hint, press to activate laser, and aim at the target,
press again to take the first distance measurement (e.g. Length). Then
measure the width, and then height, the result of volume will be seen in
the summary line.
Indirect Measurement
This device can measure distance to inaccessible points, such as the
distance to a wall which is blocked by obstacles, or the height of a tree,
using trigonometric function.
To ensure measuring accuracy, indirect measurement should be based
on the following conditions:
(1) The measuring points of the object which is to be measured should be
on the same horizontal or vertical line.
(2) Put the device at a fixed but horizontally and vertically rotary tripod.
Indirect Measurement: Pythagoras Two Points
Figure (E)
As shown in Figure (E), if user wants to measure
the height of a building, he can use Pythagoras to
calculate the height.
(1) Press
three times, the symbol
appears on display.
(2) Press to activate laser and aim at the
point which is to be measured.
(3) Press again to take the first measurement, and again to take the
second measurement.
(4) The height of building (third side of triangle), first and second distance
value will be seen on display.
Note:
(1) The device will automatically determine the longer distance as triangle’s
hypotenuse, and shorter distance as right-angle side.
6