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Chongqing Gold M& E Equipment Co., Ltd.
Address:  9F/10,Jintai Building, Nanping, 400060,Chongqing,China

Contact person:Michelle Li
Tel: 0086-023-62794421
Fax: 0086-023-62940030
Mobile/Whatsapp: 0086 15922636015
Skype: oilpurifier2010
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GDM-622R4 Total Station

GDM-622R4 Total Station is a reflectiorless total station which widely used for land survey, stake out, with equipped with 400m reflectorless working range, and 2'' angle accuracy.
  • GDM-622R4
  • GOLD

Product Description

Image                            Erect
Magnification                     30×
Effective aperture                  48mm
Resolving power                   3.75″
Minimum focus                   1m
Stadia ratio                       100
Sight distance precision             ≤0.4%D
Tube length                       172mm
Angle Measurement  
Measuring method                  Absolute Coding
Diameter of circle (vertical, horizontal)  79mm
Minimum reading                   1″、5″、10″Selectable
Measuring unit                     360°/400gon/6400mil Selectable
Vertical angle0°                  Zenith0°/Horizontal0°Selectable
Accuracy                          2″
Distance Measurement
Single prism(under fair weather condition)
     GDM-622R4 : 2.5km
Triple prism(under fair weather condition)
                                    GDM-622R4: 5km
Codak  gray card  (under fair weather condition)   white flour  90% reflectivity
                                 GDM-622R4: 400m
Display                            Max:999999.999mMin:1mm
                                      m/ft Selectable
Accuracy                        prism:±(3mm+2ppm•D);
                               no prism:±(5mm+3ppm•D)
Measuring time                     Fine single shot:  3S
                                  Tracking:   0.8 S
Meteorological Correction             Manual input, Auto correction
Reflection prism correction            Manual input, Auto correction
Plate vial                          20″/2mm
Circular vial                       8′/2mm
Vertical Compensator
System        Single axis, double axis liquid electronic sensor compensationCompensation range                   ±3′
Resolving power                      1″
Optical Plummet
Image                              Erect
Magnification                        3×
Focusing range                     0.3m~∞
Field of view                         5°
Type                               LCD,Four lines,digital
Data Communication
Port                              RS-232C,SD Card,Bluetooth  Selectable
On-board Battery
Power resource                        Rechargeable Ni-H battery
Voltage                              DC7.2V
Continuous operation time              BDC 3000mAh
                                    Angle measurement: 20 hours
                                    Distance measurement: 8 hours
Operation Environment    
Operating temperature                   -20°~+45℃
Size & weight    
Dimension                          180mm×175mm×355mm
Weight                               6.5kg
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