Digital Theodolite
The term digital theodolite can be used to describe those survey instruments designed to precisely measure horizontal and vertical angles. In addition to measuring horizontal and vertical angles, digital theodolite are used to establish straight lines, to establish horizontal and vertical distances through the use of stadia, and to establish elevations when used as a level.
A digital theodolite is a survey instrument using a three-screw leveling base, glass horizontal and vertical circles read directly with a digital display, and equipped with right-angle optical plummet for setting over specific points.
The digital theodolite consists of three main assemblies. The upper assembly, called the alidade, includes the standards, telescope, digital display for reading the horizontal and vertical circle, plate bubbles, compass, and upper tangent (slow motion) screw.
The spindle of the alidade on the digital theodolite fits down into the hollow spindle of the next assembly, the circle assembly. The circle assembly includes the horizontal circle that is covered by the alidade plate , the upper clamp screw, and the hollow spindle previously mentioned.
The hollow spindle of the circle assembly on the digital theodolite fits down into the leveling head, the final assembly of the digital theodolite. The leveling head on the digital theodolite includes the four leveling screws, the half-ball joint about which opposing screws are manipulated to level the digital theodolite instrument, a threaded collar that permits attachment of the digital theodolite to a tripod, the lower clamp and slow-motion screw.
All our digital theodolite carry a minimum of a 1 year warranty and can be repaired in-house and parts are available on all models that we sell.
How to Use a Digital Theodolite Step-by-step
1. Set up your digital theodolite over a point using the optical plummet device on the bottom of the digital theodolite.
2. Back sight your digital theodolite survey instrument by sighting the crosshairs and focusing telescope and on a reference point. The reference point can be occupied by a pole at least 150 feet away.
3. The next step is to zero the digital theodolite by hitting the set zero button.
4. You can turn any horizontal or vertical angle on the digital theodolite you want to measure or layout using the displayed readings on the LED.
5. When you are finished put the digital theodolite back into its case and never close the case when it wet.
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