4Т30P


4Т30P (4Т30P-10) optical theodolite


Function

It is designed for measuring horizontal and vertical angles and distances by a threaded range finder, for leveling by means of a level, for determining the magnetic azimuths along the compass, allowing to take the count with a scale microscope.


Main advantages

  • Small size and weight make it indispensable in expeditionary conditions, in agriculture and construction.
  • It can be equipped with a tripod, a flashlight, built-in optical Centreing unit.


Specifications

The average quadratic error of measurement at a stroke
For a horizontal angle

20"

For zenith distance

30"

Compass orientation error
Systematic component

30'

Mean square deviation of the random component

10'

Measurement range
of vertical angles

+60…-55 degrees

Visual tube
image

direct

Magnification, times

20Х

Angular field

2 degrees

Shortest sighting distance, m

1.2

Thread range finder ratio

100+/-0,5

Thread range finder constant terminator

0

Outer diameter of the lens rim, mm.

38

Weight, kg

2.3

Theodolite in a case with accessories

3.8