levelling device NA730 Leica

Including devices primary used to align the positioning level of water (Water Level) is by the ancient Iranians to be. This alignment with. the tube of the straw has been that the middle of it hole and per head it Hole small, attached to a rope will. Two people each head, the rope on a piece of wooden graded keep saying, then people in third bowl from the middle hole with water Reed fall down , if the water from each of the holes of the two head to the extent of inequality and women to wear perfume, head tanabi that more high was located, so the bottom of the  to  identical from the two head drain . The size of the head the wood and place the rope height difference between the two was spot on.Day of the alignment of the glass that holds the bubble was use was . In other countries the alignment of the glass has a curvature, a certain was, that in the event of horizontal, being the balance of the bubble perfectly in the middle of the alignment of the incident . In later years, the ... factory, manufacturer, fixtures, mapping, embedding one or two numbers align on the side of the camera, it possible to provide believed that when the bubbles align in the middle is the axis of the cue on the camera is also horizontal crafted. Thus, by moving the side axis, the sign on a horizontal surface in space is created. With the help of this axis height difference between two points the measurement is. Thus, alignment of the optics(Optical Level) was produced. The balance on the tripod, and install with three screws set the axis indication on the camera for horizontal incident and move side camera-page horizontal in the space made was.Devices leveling just to be able to create a square, horizontal, in space were, and to determine the elevation difference of the points from the pieces, graded the wood that the same indicators are used was.Adding a page, a graded horizontal to the camera, the possibility of measuring the horizontal angles between the two stretches on the ground to this vehicle was added. (Source the book the basics of mapping - Avalanche Saint NIA)is a device leveling (new) from a few part has been formed: telescope alignment page calibrate the angle of the horizontal screw setCompressor ( in some models)one of the models leveling the company "Leica" (Leica), model NA730 is called. Lens Manufacturing your company with the diagonal equal to 40 mm., the magnification of 30 equality, and have the promise of a picture is very transparent to the user area. Also features eye correction axis alignment of the camera to Compressor famous is that makes up the slopes 15 minutes Angular, etc. continue to be user-axial alignment with the horizon to view, and also video without shake and vibration even in the presence of wind will have. The standard of accuracy this leveling in 1 km benchmarking went back to 1.2 mm and has a weight equal to 1.7 kg. water resistant and dust is made.Measure the difference in height between the two point to the exact figure has always been of concern for people is that it's important to Need been and their efforts in the use of the best and most appropriate tools and methods to achieve the highest accuracy may be employed. In this field, reputable companies and owner name in the field of design and construction, measuring tools, etc. from the year round so far in the direction of enhance the accuracy and quality of their products, in this context, step Power. Camera leveling known as new can be the best and surest means of direction, to obtain the difference in height to protest. One of the reputable companies in the production of such equipment can be Leica know. Company, the Swiss Leica will dare to be the most popular company in the field of measuring equipment and surveying know that has always been the quality and accuracy of the unification of the data, and thus has the reputation and credit exemplary create for yourself.Specifications :- standard resistance, and IP57 against moisture and dust - constant factor: 100 - horizontal rotation 360 degree - rated bags plastic sturdy - has a wrench for