Factory supply discount price auto level South NL32B dumpy level 32X auto level
Error | 1mm |
Magnification | 32x |
Diameter of the objective | 42mm |
Angle of field of view | 1°20'' |
Shortest sighting distance | 0.3M |
Multiplication constan | 100 |
Compensator range | ±15' |
Setting accuracy | ±0.6'' |
Bubble accuracy | 8''/2MM |
Image | Erect |
Warranty | 1 year |
Net weight | 1.23kg |
Automatic equalization compensator a level for obtaining horizontal line of sight.
Its feature is that when the telescope line of sight is slightly tilted, the compensator moves relative to the telescope under the action of gravity, so that the ruler reading at the line of sight level can be obtained automatically and quickly.
The basic principle of compensation is: when the telescope line of sight is horizontal, the image point Z0, which is composed of object point P on the leveling scale at the same height as the main point of the objective lens, should fall on the cross wire intersection point Z. When the telescope is tilted by a small Angle α towards the horizontal line, the cross - filar intersection Z moves up, but the like point Z0 remains in place, resulting in a reading difference of Z0Z.
Product feature:
1.Shockproof, mildew proof and water proof.
2.Easy operation.
3.Optical lens for clear reading.