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FARO® Knowledge Base

Compensation, Calibration, and Certification Standards for FARO Devices

Overview

The terms compensation, calibration, and certification apply to how the accuracy of a FARO® device is defined and maintained. Often these terms are used interchangeably to mean compensation. But, each term means something very specific. To understand these terms, how they apply to your FARO device, and how you can get the most accurate measurement performance, see the sections below.

Compensation

A process used to adjust the performance of a measurement tool, keeping its performance within a stated accuracy range. 

FARO provides two levels of compensation adjustments: Minor compensation adjustments that you can do yourself and complete compensations adjustments that can only be done at a FARO Service Center

Do it Yourself: Most FARO devices have both manual processes and integrated features that enable you to make small accuracy adjustments. Refer to your device setup/configuration, or if another operator used the device before you (the way you use the device may be different than the previous operator), or your work environment changes in some way (such as you move the device to a different work location), or if you have accuracy concerns.

FARO Service Center: It takes special equipment and training to algorithmically and mechanically compensate your FARO device. FARO Service Centers and technicians are fully equipped and trained to ensure your device meets original manufacturer's accuracy specifications as stated in the device tech sheet.   

Calibration

A test or series of tests that compare measurement values to known standards, typically defined and documented by an industry or developed and documented by a manufacturer based on stated quality requirements. The result of a calibration is a listing of comparison deviations. Results are considered passing if deviations are within the stated specification for the device. Deviations may be shown in a report.

FARO provides two levels of calibration comparisons: Test comparisons that you can do yourself and in depth certifiable calibration tests that can only be done at a FARO Service Center

Do it Yourself: Most FARO devices have both manual processes and integrated features to check if the device is performing according to the accuracy technical specifications stated in the device tech sheet. Refer to your device user manual for accuracy test instructions. It is recommended that you use accuracy test processes and features to check the results of the do it yourself compensation features, or when you have accuracy concerns. How often you do these tests depends on your corporation's quality requirements and processes. 

FARO Service Center: ISO accredited FARO Service Centers provide standardized device calibration, ensuring that your device has been correctly and reliably calibrated. To review accreditation details, click here. All FARO devices are calibrated using artifacts that are traceable to the International System of Units (SI) through NIST or another recognized National Metrological Institute that is a participant of the International Committee for Weights and Measures (CIMP) Mutual Recognition Agreement. More information on the Mutual Recognition Agreement between National Metrological Institutes of different countries can be found here: http://www.bipm.org/en/cipm-mra/.   

Certification

A document provided after a calibration is completed that shows the calibration comparisons, deviations, and pass/fail results. Accredited FARO Service Centers provide a calibration certificate whenever you send your FARO device in for servicing, compensation, calibration, and certification. This certificate validates that your device adheres to calibration standards and procedures that apply to your device. See the list of FARO products below to review the ISO accreditation and the applicable calibration procedures used for your device. 

LSCalibrationCertificate.PNG

FARO Service Center Compensation, Calibration, and Certification 

Your FARO device is a precision measurement tool. When you treat it according to the use and care instructions stated in the device user manual, it is designed to maintain its accuracy when exposed to the stresses and impacts in typical work environments. However, to ensure the repeatable accuracy of your FARO measuring devices, it is a best practice to periodically send your device to a FARO Service Center to get a complete and thorough compensation, calibration, and certification. How often you send in your device depends on your corporate quality policies and procedures for ensuring the performance of measurement devices. 

It is a best practice to always keep your warranty up to date. When you purchase a warranty, you get one free calibration and certification with every year of warranty purchased. Click here for information about warranties. 

To comply with the conditions stated in your warranty, only send your device to a FARO Service Center. The technicians at the service center perform a series of tests, a factory compensation, and a factory calibration using patented proprietary hardware and software to optimize the performance of your FARO device and ensure your device meets all the original factory technical specifications.

When your device is returned to you, you receive a calibration certificate that documents the calibration comparisons, deviations, and pass/fail results. 

FaroArms® and ScanArms® with Laser Line Probes

  • There are two types of compensation for FaroArms and ScanArms that you can do yourself: FaroArm compensation and probe compensation. For details and instructions, refer to the user manual for your model.
  • There are two types of do-it-yourself tests that provide results that enable you to assess the accuracy of your measurement processes: SPAT test and volumetric test. For details and instructions, refer to the user manual for your model.
  • It is a metrology industry best practice to perform a compensation whenever you change probes. The compensation determines the center of the probe tip relative to the FaroArm coordinate system. For the Quantum Series FaroArms, the kinesthetic mount maintains a high-level of accuracy as you change from one probe to another and may not require compensation. As you change probes for the Quantum Series FaroArms, compare the measurements you get without compensation and accuracy tests to your project quality specification to determine if you must compensate probes as you change from one to another. 
  • When FARO factory technicians perform a compensation, the true dimensions and kinematics of the FaroArm are determined and stored in the FaroArm memory. 

NOTE: The Design ScanArm is not a metrology-grade measurement tool, so it does not need to be sent to a FARO Service Center for certification. To access the accuracy of your Design ScanArm, you can perform the do-it-yourself compensation and accuracy tests at any time. Refer to your user manual for details. If your Design ScanArm has sustained damage or you are concerned about its accuracy, you may request to send it in for repair. All repairs for your Design ScanArm are governed by FARO's ISO 9001:2015 accreditation.

Standards

Model Calibration
Procedure
ISO
9001:2015
ISO/IEC
17025:2005
QuantumS
QuantumM
QuantumE
ISO-10360-12:2016 for FaroArms
Edge, Prime, Fusion, Platinum, Quantum, Titanium, Gage Blue Tooth ASME B89.4.22 for a FaroArms and ScanArms including these tests.
  • Effective Diameter Test
  • Single Point Accuracy Test
  • Volumetric Performance Test.

Click here to see a sample report.

Gage Plus, Gage Standard, Power Gage ISO 10360
Laser Line Probe (LLP) FARO Blu™ V6, HD V6 Optional upon request
ISO 10360-8 Annex D when serviced with a QuantumS FaroArm
Laser Line Probe (LLP) HD V6*, Edge ES V5, Edge V4 In North America, FARO proprietary process that uses traceable known measurement artifacts to confirm LLP meets published specifications
  In other regions, might be optional upon request
FARO proprietary process that uses traceable known measurement artifacts to confirm LLP meets published specifications and is ISO 17025:2005 accredited

* HD V6 when serviced alone or with a FaroArm other than the QuantumS

Click here to review accuracy standards and technical specifications contained in model-specific techsheets.       

Laser Trackers

  • The ASME B89.4.19 System Calibration is a standardized method of calibrating a Laser Tracker using NIST traceable artifacts. It was officially released by the American Society of Mechanical Engineers in December 2006, several years after the FARO Laser Tracker was developed and began production. The standard consists of a comparison of the ADM system of the Laser Tracker (and IFM system if equipped) to a NIST traceable interferometer as well as scale bar measurements at specific locations and with specific geometries.
  • The B89 calibration provides a more complete Laser Tracker calibration certificate then the standard certificate. It is 12 pages long and contains 6 pages of Laser Tracker measurements, but will only be performed on a Laser Tracker after successful completion of the standard calibration. One primary reason for this is that the B89 standard requires all the angular accuracy measurements be performed at a distance of 6 meters or closer and uses only one sized SMR. The testing that goes along with the FARO standard calibration method does more extensive accuracy checks at further distances with multiple sized SMR's.
  • If you request the entire B89.4.19 procedure, it is not included in your warranty. 

Standards

Model Calibration
Procedure
ISO
9001:2015
ISO/IEC
17025:2005
Vantage Series and Vantage FARO proprietary process that uses traceable known measurement artifacts and ASME B89.4.19, clause 6.4 only
  Optional upon request 
Entire B89.4.19 procedure
ION®, Xi, X, Si  FARO proprietary process that uses traceable known measurement artifacts to confirm tracker meets published specifications
 
  Optional upon request
Entire ASME B89.4.19 procedure can be performed

Click here to review accuracy standards and technical specifications contained in model-specific techsheets.

3D Imagers

  • The user manual for your model Cobalt has step-by-step instructions about how you can compensate your Cobalt. 
  • The Cobalt 3D Imager does not have to be sent back to the FARO factory for periodic calibration and certification unless you want to have it certified. This certification is optional and is not covered by your warranty. 
  • The matching dot plate for the Cobalt 3D Imager does require periodic calibration and certification. FARO factory technicians certify your dot plate using high-accuracy photogrammetry and traceable scale bars. When the dot plate is returned to you, you get a new calibration file. Load this file to your system before you do a compensation.
    Cobalt Dot Plate

Standards 

Model Calibration
Procedure
ISO
9001:2015
ISO/IEC
17025:2005
Dot Plates FARO proprietary process that uses traceable known measurement artifacts to confirm imager meets published specifications  
Cobalt All Models IDI/VDE 2634-2:2002

Click here to review accuracy standards and technical specifications contained in model-specific techsheets.

Laser Projectors

Model Calibration
Procedure
ISO
9001:2015
ISO/IEC
17025:2005
All Models FARO proprietary process that uses traceable known measurement artifacts to confirm projector meets published specifications  

Click here to review accuracy standards and technical specifications contained in model-specific techsheets.

See Also

3D Laser Scanners

  • Click here for instructions about how to use do-it-yourself Onsite Compensation to adjust your Focus70/150/350. 
  • Click here for details about what is covered when you send in your Laser Scanner for factory compensation, calibration, and certification. 

Standards

Model Calibration
Procedure
ISO
9001:2015
ISO/IEC
17025:2005

-FocusS 70/150/350

-Focus3D X HDR 30/130/330

-Focus3D X 30/130/330

FARO proprietary process that uses traceable known measurement artifacts to confirm scanner meets published specifications  

-FocusM 70

-Focus3D S 20/120

-Focus3D 20/120

FARO proprietary process to confirm scanner meets published specifications  

Click here to review accuracy standards and technical specifications contained in model-specific techsheets.

Scan Localizers

The Scan Localizer does not required compensation, calibration, or certification. However, it can be repaired or serviced, which is certified ISO 9001.

Model ISO
9001:2015
ISO/IEC
17025:2005
All Models  

Click here to review accuracy standards and technical specifications contained in model-specific techsheets.

See Also

3D Hand-Held Scanners

  • Click here for do-it-yourself instructions about how to compensate your Freestyle Hand-Held Scanner.  
  • Click here to view a video about how do-it-yourself compensation is done. 
  • See the Freestyle User Manual for instructions about how to calibrate your Freestyle. 

Standards

Model Calibration
Procedure
ISO
9001:2015
ISO/IEC
17025:2005
All Models FARO proprietary process that uses traceable known measurement artifacts to confirm scanner meets published specifications  

Click here to review accuracy standards and technical specifications contained in model-specific techsheets.