Sokkia SRX3X 3" Robotic Total Station

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Sokkia SRX3X 3” Robotic Total Station for sale, very lightly used year 2008, fully shop tested calibrated by authorized Sokkia. Set up ready to working to survey condition and works flawlessly with Sokkia working standards

Used Sokkia SRX3X 3” sale includes:

  • Sokkia SRX3X 3” Robotic Total Station
  • Compass
  • Plumb Bob
  • Tribrach
  • 2x Chargers
  • 3x Batteries
  • Hard Case

The Ultimate in Remote Control Flagship Total Station Sokkia SRX

Sokkia fully robotic reflectorless total station is a versatile, capable tool that comes in 1”, 2”, 3” and 5” models. The angle accuracy is per ISO17123-3 and uses an absolute encoder scanning device with diametrical detection on both circles. Sokkia calls it the ”Enhanced Encoder with IACS Technology”. Robotically it turns tighter horizon closures than my own eyes can, and a lot faster, too. It has dual axis compensation using a ”liquid” tilt sensor that has a working range of +/- 4 minutes.

For distances it uses a ”modulated laser, phase comparison method with red laser diode”. You can use it prismless, with auto-tracking prisms, reflective sheet tar-gets, or plain old vanilla prisms. Pay strict attention to your prism offsets if you mix and match, though! It will shoot prismless from 0.3 to 500 meters to a 90% reflective surface. Accuracy is 3mm+2ppm up to 200M, 5mm+10ppm from 200M up to 350M, and 10mm+10ppm from 350M up to 500M. With reflective sheet targets your range is 1.3 to 500M. Range with the ATP1 prism 1.3 to 1,000M and an accuracy of 2mm+2ppm in the fine mode. Range with one AP prism (Figure 1) is 1.3 to 5,000M and 2mm+2ppm accuracy. Under good conditions the AP

The unique SRX On-Demand Remote Control System revolutionizes the way you survey with total stations.

  • Intelligent target search and robust Auto-Tracking capability minimize downtime due to the loss of target lock or an undesired sighting of reflective objects.
  • Unique prism systems can be optimally configured to obtain the highest work efficiency.
  • SRX is fast, dependable, and gives you unheralded surveying freedom.


  • On-Demand Remote Control System: The System comprises the prism-side RC-Controller, a data collector and an RC-Detector in the SRX handle. As the RC-Controller projects a vertical laser fan beam, the SRX rotates horizontally until it perceives the fan beam to initiate Auto-Pointing
  • Completely Cable-Free: The RC-Controller incorporates a license-free Class 1 Bluetooth modem that enables fully wireless communication for up to 300m (980ft.) between the SRX, RC-Controller and data collector.
  • Fast Search and Lock: Simply press a key on the prism-side data collector. Using a built-in directional sensor, the RC-Controller detects the direction in which the prism is moving, and commands the SRX to rotate in the shortest direction to the prism. The combination of a laser fan beam, directional sensor and 360° prism dramatically reduces the time to acquire prism lock.
  • Focus on Where You're Going: With SRX, you can smoothly continue measurement even if buildings, trees or passing traffic interrupt the line of sight. Even the roughest terrain poses no problem for SRX. Just pay attention to your footing and SRX will do the rest. If prism lock should be lost, press the measurement key and the RC-Controller automatically calls the SRX and it recovers the target lock without missing a beat.
  • False Sighting Recovery: If SRX gets caught sighting another reflective object, the on-demand remote control system quickly returns it to the prism. Recovery and measurement are accomplished at the push of a button.
  • Dramatically Improve Setting-Out Efficiency:
    • Using SRX Auto-Tracking, directions and distances are graphically and numerically displayed on the prism-side data collector for real-time point navigation.
    • Speed up operation using the Guide Light for rough lateral positioning. Setting-out efficiency can also be improved using the SRX Auto-Pointing function.


Telescope Fully transiting, coaxial optics for sighting, distance measurement, Auto-Pointing and Auto-Tracking
  Length: 173mm (6.8in.), Magnification: 30x, Resolving power: 2.5”, Minimum focus: 1.3m (4.3ft.)
Angle measurement Absolute rotary encoder scanning. Both circles adopt diametrical detection
Display resolution 0.5” / 1”, 0.0001 / 0.0002gon, 0.002 / 0.005mil 1” / 5”, 0.0002 / 0.001gon, 0.005 / 0.02mil
Accuracy (ISO17123-3:2001) 1” / 0.3mgon / 0.005mil 2” / 0.6mgon / 0.01mil 3” / 1mgon / 0.015mil 5” / 1.5mgon / 0.025mil
IACS Provided (Independent Angle Calibration System -
Automatic dual-axis compensato Dual-axis liquid tilt sensor. Working range ±4' (±74mg, ±1.18mil)
Distance measurement   Modulated laser, phase comparison method
Measuring range
(under average conditions)
With ATP1/ATP1S 360° Prism 1.3 to 1,000m (4.3 to 3,280ft.)
With CP compact prism 1.3 to2,500m (4.3 to 3,280ft.)
With 1 AP prism 1.3 to 5,000m (4.3 to 16,400ft.) Under good conditions* 1:1.3 to 6,000m (4.3 to 19,680ft.)
With 3 AP prisms to 8,000m (26,240ft.) Under good conditions* 1: to 10,000m (32,800ft.)
With reflective sheet target 1.3 to 500m (4.3 to 1,640ft.) with RS90N-K (90x90mm) reflective shee
Reflectorless*2 0.3 to 500m (1 to 1,640ft.) with Kodak Gray Card White side (90% reflective)
Unit Meter / Foot / US foot / US foot + inch
Display resolution 0.0001 / 0.001m (0.001 / 0.01ft., 1/16 / 1/8in.) 0.001m (0.01ft., 1/8in.)
(D=measuring distance, unit:mm)
With prism 2 + 2ppm x D)mm
With CPS12 high precision prism system (1.5 + 2ppm x D)mm -
With reflective sheet targe 3 + 2ppm x D)mm
Reflectorless* 2 (3 + 2ppm x D)mm : 0.3 to 200m (1 to 650ft.)
(5 + 10ppm x D)mm : over 200m to 350m (over 650 to 1,140ft.)
(10 + 10ppm x D)mm : over 350m to 500m (over 1,140 to 1,640ft.)
Measuring time Fine mode Fine: Every 0.9s or less (initial 1.5s or less) Rapid: Every 0.6s or less (initial 1.3s or less)
Auto-Tracking / Auto-Pointing Pulse laser transmitter and CCD detector integrated in telescope with co-axial optics
Auto-Tracking rang With ATP1/ATP1S 360° prism 500m (1,640ft.
With 1 AP prism 00m (2,620ft.
Auto-Pointing range With ATP1/ATP1S 360° Prism 2 to 600m (6.5 to 1,960ft.)
With 1 AP prism 2 to 1,000m (6.5 to 3,280ft.)
With reflective sheet target 5 to 50m (16.4 to 160ft.)
Interface and Data management        
Operating system Windows CE Ver.5.
Control panel layou On single face (Models with both-face control panels are available as a factory option.)
Data storage Internal memory 64MB (more than 1MB available for data
  Memory card drive CF Type II (3.3V, max. 4GB), SD card (with CF adapter, max. 1GB), USB memory (max. 4GB, FAT32 format)
Interface Serial RS-232C (baud rate: 1,200 to 38,400bps), USB1.1 Host (Type A), Client (Type mini B
Bluetooth wireless modem* 3 Class 1, Ver.1.2 (built into handles RC-TS3 and H-BT1) Operating range: up to 300m (980ft.)
SFX data transfer Provided
Laser-pointer function Light source Red laser beam for distance measurement
Lighting mode ON / Auto-Off in 1/5/10/30 minutes / OFF, selectable
Guide light   Two color LEDs, single aperture, Class 1 LED product. Operating range: 1.3 to 150m (4.3 to 490ft.
Dust and water protection   IP64 (IEC 60529:2001) (RS-232C serial cable or external power cable connection maintains IP64
Operating temperature   -20 to +50°C (-4 to +122°F)
nstrument height   236mm (9.3in.) from tribrach bottom
Size (with handle*4 and battery)   W 201 x D 202 x H 375mm (W 8.0 x D 8.0 x H 14.8in
Weight (with handle* 4 and battery)   7.7kg (17.0 lb.
Power supply  
Operating time in
Auto-Pointing mode* 5
DC58 detachable battery Approx. 3.5 hours (approx. 7 hours using two standard batteries)
BDC60 external battery Approx. 5 hours
BDC61 external battery Approx. 10 hours
On-Demand Remote Control System RC-PR3 RC-PR5
Operating range* 6 (slope distance) 2 to 300m (6.6 to 980ft.
Typical measuring time* 7 Approx. 15
luetooth wireless modem *3 Class 1, Ver. 2.0 + EDR. Operating range: up to 300m (980ft.
Dust and water protection P55 (IEC 60529:2001      
Operating temperature -20 to +50°C (-4 to 122°F      
Size W 124 x D 99 x H 196mm (W 4.9 x D 3.9 x H 7.8in.) W 80.5 x D 69 x H 131mm (W 3.2 x D 2.7 x H 5.2in.
Weight (with battery 1.1kg (2.5 lb)   410g (14.5 oz.
Operating time*8 BDC46B detachable battery Approx. 14 hours   pprox. 40 hours

*1 No haze, visibility about 40km (25 miles), overcast, no scintillation.
*2 Reflectorless range/accuracy may vary according to measuring objects, observation situations and environmental conditions.
*3 Usage approval of Bluetooth wireless technology varies according to country. Please consult your local SOKKIA office or representative in advance.
*4 RC-TS3 handle
*5 Auto-pointing by both faces (180° H&V rotation) and fine-single distance measurement every 30s at 20°C (68°F).
*6 Range depends on atmospheric conditions and type of wireless modem.
*7 Total time from pressing measurement key of the prism side data collector at 100m (320ft.) away until the SRX completes 90° horizontal rotation and a rapid-single distance measurement.
*8 Operates for 10 seconds per minute, standard mode, Bluetooth link kept, at 25°C (77°F)


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