4T30P (4T30P-10) optical theodolite
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.
Theodolite 4Т30P | 1 piece |
Stand | 1 piece |
Case | 1 piece |
Level for telescope 4Т30P-sb1-7 | 1 piece |
Set of eyepieces for telescope | 1 piece |
Small screwdriver | 1 piece |
Large screwdriver | 1 piece |
Small stud | 1 piece |
Large stud | 1 piece |
Oiler with oil | 1 piece |
Hood | 1 piece |
Certificate | 1 piece |
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 |