TOPCON Auto Level AT-B4A

TOPCON Auto Level AT-B4A

±2.0mm accuracy per 1km double-run leveling; magnetic damping compensator stabilizes line of sight quickly even in high-vibration sites for consistent precision.
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Description

Product Introduction

±2.0mm accuracy per 1km double-run leveling; magnetic damping compensator stabilizes line of sight quickly even in high-vibration sites for consistent precision.

24x magnification, 32mm objective aperture, erect image with 1°25′ field of view; 4″ resolution for clear long-distance readings, good visibility in strong sunlight.

Ultra-short 20cm minimum focus (from objective lens), ideal for confined spaces, trenches and indoor surveys

360° horizontal circle with clampless endless fine adjustment; direct 1°/1gon readings for fast angle measurement, dust-proof cover for durability.

IPX6 dust & water resistance (withstands strong water jets/heavy rain); operates from -20℃ to +50℃, prevents internal condensation for all-weather reliability.

 

Lightweight (approx. 1.7kg) compact design for one-hand operation; standard hard case for easy transport & setup in the field

 

Product Parameter (specification)

 

Category Item Specification
Telescope Telescope Length 214mm
Imaging Erect Image
Objective Aperture 32mm
Magnification 24X
Field of View (at 100m) 1°25′ (2.5m)
Resolution 4.0″
Minimum Focusing Distance 0.3m
Stadia Ratio 1:100
Stadia Additive Constant 0
Horizontal Circle Circle Diameter 99mm
Graduation Interval 1° / 1 gon
Automatic Compensator Compensating Range ±15′
Circular Bubble Vial Sensitivity 10′ / 2mm
Leveling Accuracy Standard Deviation of Elevation Difference per 1km Double-Run Leveling 2mm
Environmental & Protection Ingress Protection (IP) Rating IPX6
Operating Temperature Range -20℃ ~ +50℃
Storage Temperature Range -40℃ ~ +70℃
Dimensions & Weight Overall Dimensions (W × L × H) 122×214×140mm
  Weight 1.5kg

 

Product Feature And Application

Lightweight • stable

convenient • durable

· Full rangeofIPx6-ratedwaterresistance,suitable for various harsh envi-

ronments

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Magnetic damping compensator ensures fast, accurate, and stable measurements

· Accuracy up to ±2 mm

· Ultra-short measuring distance of 0.3 m, ideal for engineering applications

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Prodection Details

 

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Prodect Qualification

 

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Exihibition Show

 

product-790-1045

 

Deliver, Shipping And Serving

 

product-790-1423

 

Latest News

 

Shandong Surveying Information Technology Co., Ltd. is a professional manufacturer and one-stop supplier of surveying and mapping instruments, with nearly 20 years of industry experience. We specialize in the production of RTK receivers, automatic levels, total stations and theodolites, and also act as an authorized agent for multiple well-known industry brands, covering a full range of engineering surveying tools, measuring instruments and experimental equipment. We integrate production, global trade, technical support and after-sales service, committed to providing global customers with high-quality products and professional solutions. We look forward to cooperating with you!

 

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