REPAIR MANUAL FOR ELECTRONIC THEODOITE ET-02/05 SERIES

The new ET series electronic theodolite, different from traditional optical theodolite, amends the prevenient optical structure,  replacing the optical disk with raster disk, and changing optical reading system into electronic reading system..
The new ET series electronic theodolite, has made the following improvements available: more complete functions, easier operation, more reliable performance, more reasonable structure and smarter appearance.
Featuring largely in its easy operation and wide practicality, the NTS-320/350 series total station is applicable for national and urban third/fourth grade triangulation and exact lead measurement as well as construction surveying of railway, road, bridge, irrigation works, etc.