DTM series total station is a multifunctional measuring instrument, which uses a grating incremental digital angle measurement system and a phase distance measurement system. It can simultaneously display measurement results such as horizontal angle, vertical angle, slope distance or horizontal distance, and height difference, and supports multiple measurement modes such as angle and slope. The instrument is widely used in national and urban third and fourth order triangle control surveys, engineering surveys, construction installation, cadastral surveys, topographic surveys, and various engineering surveys.
This manual describes the DTM series total station, which uses a grating incremental angle measurement system and a phase‑based distance measurement system. It outlines the instrument's components, display, key functions, and applications in surveying, construction, and engineering projects.
The guide covers preparation steps such as tripod setup, leveling, centering, telescope adjustment, battery installation and charging, as well as operating modes for angle, distance, and coordinate measurements. It also details the RS232 data interface, battery specifications, and technical parameters of the device. This manual is written in Chinese.
| Telescope magnification | 30× |
|---|---|
| Objective aperture | 48 mm |
| Resolution | 3.75″ |
| Field of view | 1°30′ |
| Angle measurement method | Optical incremental |
| Grating diameter | 79 mm |
| Minimum display reading | 1″, 5″, 10″ selectable |
| Distance accuracy | ±(3 mm + 2 ppm·D) |
| Battery voltage | 7.2 V DC |
| Battery continuous work time | Angle: 20 h, Distance: 8 h |
| Operating temperature range | -20 °C to +45 °C |
| Dimensions | 180 mm × 175 mm × 355 mm |
| Weight | 6.5 kg |
Press the latch on the top of the battery box, push the box toward the instrument until it clicks, then release the latch.
Press the F1 key (Zero) to set the horizontal angle to 0°00′00″.
It connects the total station to a computer or electronic notebook so measurement data can be transferred.