High Precision W420-3 Laser Collimator for Total Station

• Accuracy: None
• Vertical Lines: None
• Horizontal Line: None
• Application: Topographic Survey
• Brand: Sanwei
• Used for: Total Station,Theodolite,Auto Level
• Model NO.: W420-3
• Product Number: W420-3
• Certification: CSA, Pcoc, Reach, Iecee, Scoc, UL, EPA, GS
• Length of Lens: 565mm
• Focus: 550mm
• Resolution: 3s
• Angle of Filed: 10 20′
• Weight: 95kg
• Voltage/Power: 4.5-6.0V/2.1W
• Magnification: 5.7-7X
• Warranty: 1 Year
• Power Switch: I=10A
• Transport Package: 1 Piece Packed in 1 Inner Carton
• Specification: 1cbm
• Trademark: Sanwei
• Origin: Shanghai China
• HS Code: 8526919090
• Production Capacity: 10000 Pieces/ Year

Product Description

Technical Features of the Calibrator(Model W420-3)

 

1.Three parallel light pipes (W420-3),in low angle, horizontal angle (with fine adjustment function) and high angle respectively

 

2.The parallel light pipes in horizontal angle has a fine adjustment function.And the long level with the precision of 20" equipped at the side can greatly enhance the testing precision of horizontal collimation angle. Moreover, the horizontal angle has self-checking function.

 

3.A cross-hair board with the precision of 30" is integrated in each parallel light pipe, ideal for calibrating high precision measuring instruments.

 

4.The two stationary ring seats at each end of the parallel light pipe allow some space for adjustment. Users can adjust the measuring difference to suit specific needs.

 

5.The latest cold light source is applied, which can make the parallel light pipe more lasting.Users can adjust the intensity of the light according to your need and different lighting conditions.

 

6.The up-down worktable has a 30cm adjustable range. At the center of the top and bottom, there are two apertures, which can be used to test the optical system of theodolites.Such design is very user-friendly and can accommodate more instruments

 

7.The up-down worktable has a large rotary handle,adding to the flexibility and user-friendliness of the product.

 

8.At center of the up-down worktable there is a center spiral to connect and fix the equipment to be calibrated. The spiral is suitable for screws of both English and metric measurements, so that both domestic and imported measuring equipment can be calibrate.

 

9.Four adjustable horizontal wheels at the base,and four circular cushion blocks to enlarge the stressed area at the base.

 

10.The product has an aesthetic design, a scientific structure and very high stability. The total weight of the product is 95kg.

PRODUCT SHOW


PRODUCT SPECIFICATION
 

Model	W420-3
Three parallel light pipes,in low angle,collimating horizontal angle and high angle respectively
The set angle	the horizontal angle :90°0'
	the low angle and high angle: 30°(±30°)
Length of the lens barrel	400MM
Effective aperture	56MM
Focus	420mm
Scale value of the cross-hairs board	30" or [20"]
For the parallel light pipe in collimating horizontal angle       Min fine tune precision of the horizontal axis:<=10"       Min fine tune precision of the vertical axis:<=10"
Max. adjustable range of parallel light pipes in low angle and high angle          the horizontal wire:≥60',the vertical wire:≥60'
Angle of field	10°20'
Resolution	3"
Magnification	5.7~7x
Sighting distance	20~25cm
A central spiral at the worktable to connect and hold the equipment to be calibrated. The spiral is suitable for screws of both English and metric measurements.
Max, range of adjustment for up-down worktable:30cm (including apertures)

OUR SURVICE

1.Any inquiries will be replied within 12 hours.

 

2.All our products have one year warranty, And we sure the products will be free from maintenance within warranty period.

 

3.All products will have been strictly quality checked in factory before sending out.

PACKING & SHIPPING

PAYMENT 

COMPANY INFORMETION

Shanghai Hexin Survey Instrument Co., LTD has 8 years' experience in geodetic surveying and cadastration surveying, we are a professional and leading enterprise in the surveying industry in MainlandChina. We specialize in the R&D and manufacturing and sales of all kinds of surveying products, including total station, electronic theodolite, electronic distance meter, automatic level, laser level, reflector prism, surveying  accessory, GPS receiver, mapping software, etc.The marketing model advocated by us is not a simple sense of "selling products", instead, pre-sales service, services  during operation and after-sales service are integrated in entire operating activities. It makes the customers feel that they purchased not only a commodity, but also a professional service.We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!

FAQ

Q:How to turn off voice broadcast of receiver?
A: a. Enter the WEBUI, find the voice switch in the settings page and turn it off.

b. Controller Software→Device→Device Setting, turn off the "enable voice", and click"ok"

Q: Can the base station and rover station be interchangeable?
A: The difference between the rover station and the base station is that the accessories are different, the function and hardware configuration are the same.You can use the controller to choose the working mode of the device and set it as the base station or rover station.

Q: What is CORS?
A: CORS is called a continuous operating reference station system. It can be understood as a bas e station that is erected at a fixed known point and works continuously for 24 hours and sends its own data to a specific serverthrough the network. The use of CORS operation eliminates the need for a base station, and CORS is equivalent to a base station in a normal network operation.