812ERS Total Station

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Total Station

The 812ERS total station is an easy-to-use measuring instrument with the port for SD memory card. It comes with a user friendly interface, and can realize reflectorless distance measurement, with a measuring range of 350m. The design of alphanumeric key, user defined function key and navigation key allows for convenient and fast Operation. In addition, only by pressing one function key, the total station can start measuring and recording the measurement data quickly. It also has the advantages of simple Operation, fast and accurate distance measurement, so it is widely applied in various surveying and mapping work.

This total station can achieve real-time and two-way data transmission with the computer, also the graphical guidance for lofting through the use of online programmable technology. When connected with the computer, it also allows for easy and fast upgrades for the application software.

Features of the Total Station
1. The two pieces of high-capacity Ni-MH rechargeable batteries support long time standby, thus making our total station suitable for fieldwork.
2. The total station has a large internal memory that can store 50000 points of data, and can automatically record the data of angle, distance, coordinate and so on.
3. It can be used for layout work, area computation, and accurate measurement of coordinate, suspension height measurement , resection , subtense, eccentricity, angle measurement , etc.
4. The application of various reflective films and targets makes the measurement process convenient and flexible. This instrument can also be equipped with the laser plummet and slide tribrach for option.

Specifications of the Total Station
Model 812ERS
Telescope 
Length of sleeve 150mm
Objective aperture 45mm
Magnification 30X
Image Erect
Field of view 1º30'
Shortest sighting distance 1.5m
Distance measurement (Good atmospheric condition)
Distance Reflectorless 350m
Single prism 2km
Triple prism 3km
Measuring accuracy ± (2mm+2ppm× D) / ± (3mm+2ppm×D)
Measurement speed
Fine mode 1.8s (initial 2.5s)
Fast mode 0.9s (initial 2.5s)
Tracking mode 0.4s (initial 1.5s)
Atmospheric correction range -499ppm~ +499ppm
Prism constant correction range -99mm~ +99mm
Angle measurement
Measurement mode Grating measurement
Signal collection mode 2 signals for horizontal 1 signal for vertical
Accuracy 2"
Minimum reading 1"/5"/10"(optional)
Data feedback time 0.1"
LCD display 2 sides
Memory 50000(5000000 optional, SD expansion card)
Optical plummet
Amplification 3X
Field of view
Image Erect
Range of focusing 0.5m~∞
Compensator
Sensor Vertical axis compensation
Range of compensation ±3'
Setting accuracy ±1"
Date communication
Date output interface RS232C
Level
Plate level 30" /2mm
Circular level 8'/2mm
Power
Battery Two Ni-MH rechargeable batteries
Operation time Distance measurement 4h Angle measurement 20h
Instrument
Voltage 7.2V
Size 190X210X350mm
Weight 6Kg
Accessories Main instrument, battery, charger, cable, software CD, etc.

Note: The letter E contained in the model represents English, L indicates laser plummet, A stands for measuring accuracy:± (2mm+2ppm •D) and R is short for reflectorless.

Our company is a professional total station manufacturer in China. Our wide variety of products includes electronic theodolite, BTMS tunnel measurement system, automatic level, RTK GNSS receiver F90, and more.

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