Mountlaser High-Precision Surveying Collimator for Instrument Calibration

Calibration

Standard Collimator Series

4 Models

F550-2

Dual Tube · Horizontal

TypeDual Optical Tubes

StructureDesktop-Style

ApplicationPrecision Calibration

F550-3E

Triple Tube · Electronic

TypeTriple Optical Tubes

StructureDesktop Configuration

ApplicationMulti-Angle Alignment

F550-2A

Dual Tube · Floor-Style

TypeDual Optical Tubes

StructureFloor-Standing

ApplicationEnhanced Vibration Control

F550-3

Triple Tube · Floor-Style

TypeTriple Optical Tubes

StructureFloor-Standing

ApplicationHigh-Accuracy Multi-Axis

Precision

Top-Extension Type Collimators

4 Models

T550-2T

Top-Extension · 2T

DesignT-Type Top Extension

Tubes2 Optical + 1 Zenith

PurposeZenith Accuracy Check

F550-3ET

Electronic · Top-Extension

Configuration3-Tube + Top Extension

FeatureDigital Ready Interface

ApplicationAdvanced Calibration

F550-2AT

Vertical · Top-Extension

StructureVertical AT Design

Tubes2 + Top Extension

RangeFull Angle Calibration

F550-3T

Triple · Top-Extension

Total Tubes4 Tubes (3+1 Top)

GradeProfessional Laboratory

CapabilityMaximum Precision Testing

Digital

Digital Screen Series

3 Models

F550-3S

Small Screen

DisplayIntegrated Small LCD

Tubes3 Optical Tubes

FeatureReal-time Observation

F550-3LS1

Large Screen · Single

DisplayLarge External Monitor

ResolutionHigh-Resolution Output

Configuration3 Optical Tubes

F550-3LS3

Large Screen · 3 Split

Display3-Way Split Screen

Tubes3 Photoelectric Tubes

EfficiencySimultaneous Multi-Monitoring

Components

Collimator Accessories

3 Models

T550

Tube Unit

TypeReplacement Tube Unit

PurposeSpare Component

TB550

Base Tube

TypeTube with Adjustable Base

FeaturePhotoelectric Integration

F550

Main Unit

TypeCollimator Main Body

PurposeSystem Component

What's in the surveying box

Collimator

Composite board wooden box

Tube

Type-C Charging Kit SURVEYING COLLIMATORS

Manual

Forced centering plate

Product Specifications

F550-2P

F550-3E

F550-2A

F550-3

Auto Level Calibration Bench

Instrument Type

Auto Level Calibration Bench

Instrument Type

Auto Level Calibration Bench

Instrument Type

Auto Level Calibration Bench

Instrument Type

Number of Optical Tubes

Tabletop

Structure Type

Tabletop

Structure Type

Floor

Structure Type

Floor

Structure Type

Optical Down Plummet

Yes

Optical Down Plummet

No Lifting Tray (Included)

Tray

No Lifting Tray (Included)

Tray

No Lifting Tray (Included)

Tray

No Lifting Tray (Included)

Tray

Auto Level Calibration / Adjustment

Application

Auto Level Calibration / Adjustment

Application

Auto Level Calibration / Adjustment

Application

Auto Level Calibration / Adjustment

Application

Overview

Precision Optical Alignment System

Engineered with high-precision optical tubes, the calibration bench provides stable reference alignment for inspecting, calibrating, and adjusting auto levels with consistent and repeatable results.

Flexible 2-Tube and 3-Tube Configurations

Available in both 2-tube and 3-tube versions, the system supports different calibration requirements, allowing technicians to perform efficient testing across various auto level models.

Optional Zenith Observation Capability

Selected models are equipped with a zenith optical tube, enabling vertical observation and additional alignment verification for more comprehensive calibration procedures.

Tabletop and Floor-Standing Designs

Choose between compact tabletop models for limited workspace or robust floor-standing configurations designed for calibration laboratories, service centers, and manufacturing facilities.

Advanced Digital Display Solutions

Premium models feature integrated display systems and optoelectronic optical tubes, providing clearer observation, improved operational efficiency, and enhanced calibration accuracy for professional applications.

Have a question?

FAQ

If you have an issue or question that requires immediate assistance, you can click the button below.

ASK A QUESTION

What happens if the wrong prism constant is set? How do I correct the data?

Using an incorrect prism constant introduces a systematic offset into every distance measurement recorded during the survey. For example, if a −30 mm prism is used but the controller is set to −17.5 mm, every recorded distance will be 12.5 mm too long. The correction is calculated as: Δ = PC actual − PC set. Update the prism constant in your office software and recompute the project to automatically correct all coordinates.

Are standard circular prisms really more accurate than 360° prisms?

Yes. Standard circular prisms generally provide higher centering accuracy because they use a single precision corner-cube prism. Most 360° prisms consist of multiple prism elements, introducing additional alignment tolerances. However, for robotic topographic surveys, the productivity benefits of omnidirectional tracking usually outweigh the small accuracy difference. Standard prisms remain the preferred choice for control surveys, deformation monitoring, and industrial alignment work.

Can I use prisms from different brands with my total station?

Yes. Cross-brand prism usage is common throughout the surveying industry. The key requirement is entering the correct prism constant for the specific prism being used. Most measurement errors when mixing brands are caused by incorrect prism constant settings rather than optical incompatibility. Always verify whether the manufacturer uses a nominal or absolute prism constant and configure the total station accordingly.

Why can't my robotic total station lock onto the monitoring prism?

Common causes include ATR collimation errors, dirty optics, reflective environmental interference, incorrect tracking mode settings, or insufficient prism size for long-range observations. Start troubleshooting by cleaning both the instrument lens and prism, manually aiming at the prism center, and attempting a manual lock. If manual lock succeeds, perform ATR calibration and retest automatic tracking.

Why do reflectorless mode and mini-prism readings differ by 5 mm at close range with a steep vertical angle?

This difference is typically caused by a combination of reflectorless measurement geometry and prism orientation effects. At steep vertical angles, the laser beam strikes the target obliquely, causing the reflected signal centroid to shift. At the same time, a mini-prism that is not perfectly aligned with the instrument can introduce additional cosine-related errors. For critical elevation measurements, minimize vertical angles whenever possible and ensure the prism is accurately leveled and plumb.

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About Mountlaser

Mount Laser is a leading integrated Auto Level manufacturer specializing in surveying instruments and accessories, as well as laser levels and related solutions. Headquartered in Changzhou, Jiangsu Province, the company operates a 7,500 m² modern manufacturing facility and employs a dedicated team of over 150 skilled professionals. As a comprehensive solution provider, Mount Laser's product portfolio spans 13 core categories: Auto Levels, Calibration & Testing Instruments, Prisms, Surveying Accessories, Scanner Targets, GNSS, Surveying Poles, Leveling Staffs, Tripods & Bipods, Line Lasers, Rotary Lasers, Laser Level Accessories, and Agent Sales services. Committed to quality and innovation, Mount Laser serves as a trusted partner to surveying and construction professionals worldwide.

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