- Country of manufactureRussia
Optical level of SETL AT-24D — the measuring device intended for leveling performance by a geometrical method with use of standard telescopic laths. The level is equipped with the automatic pendular compensator.
In comparison with the basic model possessing the same small dimensions and weight it has higher increase in a telescope — 24kh that allows to read out more comfortably data during considerable removal of a point of measurement from a level. Besides, SETL AT-24D provides high precision of measurements: the error with a length of vizirny line up to 25 m does not exceed 2,0 mm. It allows to use an optical level for performance of work on geodetic maintenance of construction of buildings, constructions and other objects, and also for high-rise executive shooting.
Unlike AL series models, the compensator of a level SETL AT-24D is equipped not with an air, but magnetic damper. It provides the accelerated stabilization of the optical-mechanical system that is especially important in the conditions of continuous vibrations, for example, on platforms where the heavy processing equipment works.
Wide range of working temperatures, from – 40º-С to + 50º-С, allows to apply SETL AT-24D level at all seasons of the year, both in a polar region, and in hot climate. The facilitated device design received thanks to smaller metal consumption gave the chance to reduce the gross weight of the device. SETL AT-24D is suitable for mobile measurements, for example, during the work in field conditions, during creation of high-rise justification when performing survey, etc.
On a lens of a level SETL AT-24D there is a blenda which is carrying out a role of an antisolar peak. She allows to perform more comfortably works in a sunny weather, limiting the top light stream and excepting thereby dazzle of the observer getting to a lens direct sunshine. It is especially useful in morning and evening hours at a low arrangement of the Sun over the horizon.
The horizontal limb of SETL AT-24D used for the purpose of trace of the directions during shooting and for creation of horizontal corners when performing marking works has the closed design: only the part of a scale in a window with a limb index is visible. It allows to increase the accuracy of removal of counting and excludes random errors when reading results. Besides, it protects fragile details from casual damages.
|Accuracy||2,0 mm (SKO on 1 km of the double course)|
|Minimum focal length||0,6 m|
|Corner of a field of vision||1 °-20'|
|Diameter of a lens||30 mm|
|Coefficient of a cotton range finder||100|
|Constant amendment of a range finder||0|
|Diameter of a horizontal circle||110 mm|
|Price of division of a horizontal circle||1 ° -|
|Range of operation of the compensator||±-15'|
|Other features||the compensator with a magnetic damper|
Standard complete set: an optical level of SETL AT-24D, a justified set, a plumb, a shipping case with a shoulder strap, the maintenance instruction. -