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ROMER Absolute ArmMaximum performance portable measurement
Metrology on the go.
The ROMER Absolute Arm. Absolutely groundbreaking.
ROMER portable measuring arms have fundamentally changed coordinate metrology by
going where traditional measuring machines can’t. For workpieces that are large, difficult
to move, or cannot be moved to an offline inspection station, dimensional inspection at the
point of production is essential. With ROMER arms, you take the CMM to the part, instead
of taking the part to the CMM. The ability to quickly measure parts wherever and whenever
required allows manufacturers to ensure quality, control processes, reduce scrap and
eliminate re-work.
With more than twenty years of development in portable arm technology, ROMER
products lead the industry with innovative, lightweight systems designed to make
portable metrology fast, easy and affordable. Manufacturers in more than 100 industries
worldwide rely on ROMER products to deliver essential inspection information quickly in
circumstances where traditional measuring methods are impractical or impossible.
The ROMER Absolute Arm is the latest ROMER innovation. Drawing design inspiration
from the entire Hexagon Metrology product family, and all ROMER arms that came before,
the ROMER Absolute Arm is the lightest, most accurate, most flexible ROMER arm ever.
Whether utilizing a traditional tactile probe, modern internal scanner or external scanning
system, there is always a solution with ROMER.
ROMER – absolutely portable CMMs.
Typical Measuring Applications
Plate and Fabricated Metal
Stamped and punched metal components
Molded parts
Dies, molds, forms and patterns
Structural and ornamental metalwork
Composite materials
Machined castings
Tubes and tube assemblies
Vehicle body and chassis
Tanks/Boilers
Fiberglass structures
Typical Industries
Automotive OEM and components
Automotive Interiors
Aerospace OEM and components
Heavy Equipment OEM and components
Ship and Boat Building
Defense OEM and parts
Machinery Manufacturing
Furniture Manufacturing
Civil Engineering
Windpower OEMs
Appliances
Typical Industries
Automotive OEM and components
Automotive Interiors
Aerospace OEM and components
Heavy Equipment OEM and components
Ship and Boat Building
Defense OEM and parts
Machinery Manufacturing
Furniture Manufacturing
Civil Engineering
Windpower OEMs
Appliances
ROMER Technology.Measurable Benefits.
By definition, portable metrology devices must be accurate and reliable in less than
favorable production conditions. The core technologies used to build every Absolute Arm
were chosen based on the experience of thousands of units in the field that must be
reliable and accurate in real-world use. Innovative new technologies have been added
based on their proven performance in other Hexagon Metrology products. With the new
Absolute Arm, ROMER delivers maximum innovation with minimum risk.
Absolute Encoders
A first in the world of portable measuring arms: The ROMER Absolute Arm features
proprietary absolute encoders in its primary axes, so the arm always “knows” the
position of its joints. The result is the first portable measuring arm which does not
require any kind of homing procedure before starting measurement. When the arm is
turned on, it’s ready to go.
Lighter, Stiffer, More Accurate
From the carbon fiber tubes to the simplified dual yoke joint housings, the Absolute Arm
was designed to be the lightest, yet stiffest ROMER arm we’ve ever built. The base 2.5
meter arm weighs just 17 pounds, fifteen percent lighter than similar 2.4 meter arms.
Combined with the improved accuracy from the absolute encoders, it’s also the most
accurate ROMER arm to date.
Absolute Flexibility
The all-new ROMER Feature Pack concept unfolds the full potential of a portable
measuring arm. Utilizing a common docking connector to the base of the arm, feature
packs allow you to add, remove, or change features on an arm as required. As new
feature packs are released, an Absolute Arm can be upgraded in the field with new
capabilities.
Feature Pack Options for Absolute Arms:
• Mobility Pack: A rechargeable battery and WiFi transmitter allows completely
wireless use of the Absolute Arm.
• Scanning Pack: Allows connection of laser scanning systems.
• “No Pack” Option: The Absolute Arm is completely functional without a feature
pack, using a 110/220v power connection.
RDS Communication
The new RDS arm communication and diagnostics software runs in the Windows
notification area and is instantly available whenever needed. Intuitive program operation
facilitates probe calibration management and includes a diagnostics function for
checking the measuring accuracy of the arm.
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RROIROMER Return On InvestmentROMER arm systems produce results you can measure. Many ROMER owners discover benefits
so dramatic, the return on investment can be calculated in months, not years. Benefits may include:
• Faster and more accurate inspection than traditional manual methods.
• Replacement of costly and inflexible dedicated gaging.
• Reduced setup time for machines or fixtures.
• Minimizing production wait time because results are available faster.
• Scrap and rework reductions via in-process or on-machine inspection.
• More efficient documentation, eliminating manual data entry.
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ROMER Absolute Arm. Inspection accuracy in its most mobile form.
1. Patented Infinite Rotation in the principle axes allows access to difficult to reach areas.
2. Kinematic Probe Joint, the same type used in Hexagon Metrology bridge CMMs, provides
repeatable connection of probes, with no need for recalibration. Automatic probe
recognition allows you to store hundreds of calibrated probe profiles for instant recall.
3. Compact Head is easy to hold, and is used to inspect parts or to interact with the software
when in “mouse mode”. Integrated work light and digital camera graphically document setups.
4. Patented SpinGrips are infinitely rotating, low-friction hand hold positions for better user
ergonomics. SpinGrips allow the arm to “float” in the operator’s hands, maximizing accuracy
and minimizing user fatigue.
5. Absolute Encoders improve overall accuracy and eliminate “homing” procedures.
6. Carbon Fiber Tubes provide a lightweight, stiff structure that is thermally stable.
7. Low Profile Zero-G Counterbalance balances the arm’s weight for easy, operation with
effortless control, even above and below the arm’s centerline. Better ergonomics means lower
operator fatigue and better measuring results.
8. Integrated handle and lifting point under counterbalance allow for easy carrying.
9. Feature Packs plug into the base and provide interchangeable and upgradeable add-on
capabilities such as WiFi connection, battery power, scanning and more.
10. Universal thread mount base attaches to a variety of available base and stand options
including magnetic bases. (shown)
2 3 8 9
The Absolute Arm - 6 Axis Tactile Probe
Designed with 6 axes of infinite rotation, the ROMER Absolute Arm is ideal for multiple applications on a wide array of workpieces. The absolute portability of a ROMER arm means you can put it to work all around your facility to take on varied tasks such as:
Large Part and Assembly InspectionWhen moving the part is impractical or impossible, a ROMER arm can be taken to the location where dimensional measurements are required. Verification of single parts or entire assemblies is fast and convenient. The Absolute Arm is now available in the largest size ever: an industry first 14.8 foot (4.5m) measuring volume, to take on the biggest tasks.
First Article InspectionFaster than traditional methods of taking parts elsewhere; first article checks can take place right on the shop floor so production can keep moving.
3D AlignmentPrecise 3D positioning of parts for assembly, setting up tooling and fixturing, and verification of position are all possible with an Absolute Arm.
On-Machine Inspection and Verification: Using a ROMER arm on the bed of a machining center, critical dimensions can be inspected before further processing takes place. Ideal for materials that would deform if removed from the machine.
Incoming Quality ControlArriving parts can be inspected right on the dock, for immediate feedback if supplied parts meet critical specifications.
Metrology on the GoThe best part of a ROMER Absolute Arm is it’s totally portable, so you can put it to work doing any or all of the above tasks anytime and anywhere. It’s like having your own mobile metrology lab.
ROMER Scanning Systems - from Points to Point Clouds.
When equipped with laser scanning technology, the ROMER Absolute Arm opens up new worlds of possibility. Laser scanning technologies have changed the way many companies think about part inspection and also enabled entirely new methods of product design, part inspection and quality control.
While a traditional tactile arm produces relatively low density data by taking points one at a time, laser scanning produces high density “clouds” of 3D points in just minutes. Point clouds in the millions or tens of millions of points are not uncommon. Point cloud data can be compared to a CAD model, used to create a CAD model, or used to reproduce a physical 3D model of the part. Since laser scanners produce large quantities of high-density data very quickly, high quality data collection is extremely fast for even the largest parts.
Traditional inspection of features such as circles, planes, slots and other geometric characteristics is possible by performing feature extraction from the scan data. CAD to Part comparison of scanned data can also be shown as a colored “weathermap” showing areas of deviation from nominal across the entire part at a glance. It’s an excellent way to evaluate how and where the surface of a part deviates from the nominal.
The ROMER Absolute Arm takes laser scanning mobile. The portability of a ROMER laser scanning system means that you can scan large scale objects quickly and easily. In some cases, you can set up the arm inside or underneath a part or assembly to scan areas inaccessible with other scanning methods.
Why choose non-contact laser scanning?
The possibilities for 3D laser scanning are limited only by your imagination. Common applications include:
Inspection and validationLaser scanning produces a 3D point cloud for cloud-to-CAD comparison, feature recognition for dimensional inspection, and GD&T analysis.• Verifying a part meets CAD, for incoming inspection, inprocess inspection or final validation.• Verify tool & die wear or rework.• Contour measurement, comparing parts to corresponding CAD models, 2D cross-sections or 3D topographical mapping.• Inspection of the mating of two parts
Reverse EngineeringSmall or large parts can be quickly digitized and the resulting 3D model can be converted to CAD that describes a sample or prototype part. Reverse Engineering software is used to import the scanned point cloud, manipulate, mathematically smooth and combine the scanned data so a representative surface model can be created.• Create a 3D model for further CAD design modification.• Create a “legacy” or “golden” part for repair or restoration work where no CAD or part drawing exists.• Create an “as-built” model of a tool so wear over time can be compared.• Competitive part/product analysis.• Scan surfaces to create a 3D model to design a part that will mate perfectly. Ideal for automotive aftermarket design applications.
Rapid PrototypingA sample part or physical model is scanned and converted to an STLfile representation of the part, which can then be reproduced with a 3D printer.
Copy MillingProducing a duplicate of a sample part directly from the point cloudscan data. CAM software is used to read the scan cloud data andproduce machining instructions for machine tools.
Historical Preservation3D scans of priceless artifacts can be created without touching them. This aids in archival, preservation or restoration work, and also allows the creation of a 3D record, model or copy.
Shaded Point Cloud
Polygonized Point Cloud
Feature Inspection
CAD to Part “Weathermap”
GD&T Inspection
Captions for 1 2 3 upper right
The Absolute Arm - 7 Axis with Internal Scanner
The ROMER Absolute Arm SI is the first ROMER arm with a laser scanner integrated directly into the wrist. All the benefits of laser scanning are combined with the Absolute Arm’s class-leading standard features. This completely integrated scanning system is factory calibrated and certified as a system to B89 specifications. The scanner requires no warm up time; coupled with no requirement for homing procedures means an operator can be up and scanning in just moments. Single button semi-automatic laser power control allows scanning of different surface types without compromising accuracy.
With the scanning control and batteries incorporated into a Feature Pack for the scanning system, the entire system is self-contained.The ultra portable, low weight scanning system is balanced with the Zero-G counterbalance for user ergonomics and ease of use for precise control of scanning paths. Many operators will find the system can be operated comfortably with one hand.
Quick Facts:• Fully integrated– no additional cables or controller box• 30,000 points per second scanning• Semi-automatic laser power and exposure control• No warm-up time• Scanning system certified to B89.4.22• No coating or surface preparation necessary• Scanning and probing interchangeable, automated probe recognition• Available in measuring ranges from 6.6 ft (2 m) to 14.8 ft (4.5m)
1 2Fast Startup. Absolute encoders, no warm up
scanners, and auto probe recogni-
tion means you can power up and
just start measuring.
System Calibration. Scanning system is calibrated to
B89 as a single unit for performance
confidence.
Reasons to Choose ROMER
The Absolute Arm - 7 Axis for External Scanners
The ROMER Absolute Arm SE for external scanners is a 7 axis portable inspection system designed for use with interchangeable external laser scanners, such as the CMS108, that use a TESA kinematic joint (TKJ) connection. The benefits of choosing the 7 axis external scanner configuration include the ability to share a single scanner among multiple devices, including arms of different sizes or a stationary device such as a bridge or gantry CMM. When sharing a scanner, the arm is still usable even if the scanner is on another device, because the arm is a fully functional tactile measuring system without a scanner attached. Some users actually prefer the 7 axis “pistol grip” configuration for tactile inspections.
Owners of existing scanners with a TKJ joint can upgrade to the latest ROMER technology by purchasing a new arm and attaching the existing scanner. As new scanner technologies are released, an upgrade is as simple as changing a probe.
Quick Facts: • Designed for interchangeable laser scanners, such as the CMS108 available from ROMER or third parties• Share one scanner between multiple devices • Internal cabling• Open platform for future upgrades with TESA connectors and Feature Pack technology• Balanced operation with Zero-G counterbalance• Available in measuring ranges from 6.6 ft (2 m) to 14.8 ft (4.5m)
4 5Interoperability. Software packages that work with
other Hexagon Metrology products
ensure interoperability and easier
training.
Innovation. More than 20 years experience
in portable metrology design and
innovation.
3Ergonomics. Easy to hold, maneuver and use,
ergonomic features are designed
for operator comfort, safety and
measuring accuracy.
PC-DMIS® Portable. Software for tactile or scanning inspection.
With the world’s largest installed base of any measurement and inspection software,
PC-DMIS is the ideal match for ROMER portable CMMs whether implementing tactile or
scanning measurement solutions. PC-DMIS Portable is fast and intuitive to learn, especially
for users already familiar with the PC-DMIS environment on any type of measuring device.
Used for portable inspection with or without a CAD model, the powerful capabilities of PC-
DMIS deliver inspection information quickly and accurately.
The PC-DMIS Portable interface is specifically designed for the arm user, with larger
menus, buttons, and a virtual keyboard which allows direct interaction with PC-DMIS
without touching the computer when using the arm in “mouse mode”. PC-DMIS Portable
makes it easy for operators to inspect parts in comparison to CAD models in real-time,
generate inspection programs and produce clear, concise CAD-to-part reports.
Quick start GUI — Commonly used functions are grouped together into one
compact interface for ease and speed of access.
Automatic programming — Part programs are automatically created during
inspection, for recall and later re-use. Guided inspection routines with visual
cues and comments are easily created for repetitive inspections.
Guess mode — PC-DMIS automatically recognizes feature types as you
measure — just measure a circle and it’s recognized as a circle.
Automatic nominals — Feature nominal values are automatically retrieved
from the CAD file during measurement, no manual data entry is required.
Any-order measure — Lets operators probe or scan parts in the most
convenient and efficient order without having to follow the steps of an
inspection routine. The software keeps track of what is measured and only
evaluates dimensions when all of the necessary information is available.
Aligning contoured parts — PC-DMIS Portable quickly aligns even
the most complex parts. A range of algorithms for best fit and iterative
alignments are included.
Sheetmetal measurements — PC-DMIS Portable offers an optional library
of sheetmetal measurement routines.
CAD file compatibility — PC-DMIS has translators for all major CAD formats,
plus optional direct CAD interfaces, which read and use the native CAD
formats, without translation.
Customizable reporting tools — Customizable inspection reports are
created automatically. Compatibility with Microsoft Excel™, PDF and RTF
formats. Data for SPC analysis can be automatically transferred in real
time to the DataPage+ SPC package.
PC-DMIS Portable allows
for a multitude of scanning
measurement solutions.
Colormaps in conjunction with
streamlined programming and
powerful reporting tools are
some of the features available.
A multiple point scan can be
taken by simply dragging the
probe over the part with the
button depressed.
↑Collected Point Clouds
↑Meshed Point Clouds
↑Meshed with Curve Network
↑B-Splines
↑NURBS Surfaces
PC•DMIS Reshaper software, the points to mesh solution.
Scanned data created by the ROMER Absolute Arm can be applied to a wide variety of applications beyond simple measurement. Hexagon Metrology’s very own PC-DMIS Reshaper software offers a specialized set of tools using this data to create high quality 3D models for reverse engineering, CAD-comparison, or part duplication.
Online or offline, PC-DMIS Reshaper is capable of connecting live to a measuring device for data collection or can function as a stand-alone application for the processing, meshing and editing of point cloud data. By taking the various point clouds, cleaning the clouds to eliminate irrelevant data and meshing the data into a 3D model, PC-DMIS Reshaper is capable of creating NURBS surfaces and exporting data into a wide variety of 3D file formats.
PC-DMIS Reshaper Capabilities Include:
Point Cloud Processing
• Manage the largest point clouds easily • Manipulate, edit, merge, and separate point clouds
• Easily register, align and best fit clouds • Remove extraneous data and reduce noise
Meshing Capabilities
• Reduce and optimize polygon mesh data
• Optimize meshing along high curvature areas
• Smooth, repair, and deform shapes in 3D for mesh adaptation
• Fill holes to bridge missing data
3D Control and Inspection
• Import files in IGES and STEP formats • Compare surfaces and contours
• CAD-comparison mapping of surfaces in color with variable scales and movable data flags
Reverse Engineering
• Model parts in 3D for further CAD design or adaption
• Create a “legacy” or “golden part” where no CAD or part drawing exists
• Analyze competitive parts and products
• Preserve 3D records of artifacts for archival or historical purposes
• Output high quality 3D mesh model for rapid prototyping, tool path generation, animation, simulation, finite element analysis, control and inspection, sectioning, etc.
• Generate Nurbs surfaces for further CAD design or adaptation
Specifications are subject to change without notice. Go to http://us.romer.com for latest information.Working temperature: 32°F – 122°F (0°C – 50°C) Storage temperature: -22°F – 158°F (-30°C – 70°C)Humidity: 10% – 90% non-condensing Operational elevation: 0-6600 ft. (0-2000 m)Power requirement: Universal worldwide voltage 110-240 Certification: CE compliant
Point Repeatability Test (also known as Single Point Articulation Test, or S.P.A.T.): Results analyzed via Range/2 method. The probe is placed within a trihedral seat or conical socket, and individual points are measured from multiple approach angles with maximum articulation of all of the principal joints. Each individual point measurement is analyzed as a range of deviations about the average value for the point locations. This test is to assess the arm’s ability to provide similar values of a point coordinate, when the arm is articulated through the maximum possible range of motion for that single point.
Volumetric Performance Test: Results analyzed via Range/2 method. Volumetric length accuracy is determined by using certified length standards that are measured at various locations and orientations throughout the measuring volume. This test most accurately represents the reasonable expectations for machine performance in practical measur-ing applications. The Volumetric Length Accuracy Test is the most appropriate test for determining machine accuracy and repeatability since it involves measuring a certified length standard many times in several locations and orientations and compares the resultant measurements to the actual length.
Configurations 73 Series6 Axis Arm
75 Series6 Axis Arm
73 SeriesExternal Scanner
75 Series External Scanner
73 SeriesInternal Scanner
75 SeriesInternal Scanner
Zero G Counterbalance with Lock
Standard Standard Standard Standard Standard Standard
SpinGrips N/A Standard N/A Standard N/A Standard
TesaTKJ Connector Standard Standard Standard Standard Standard Standard
3 TESA Hard Probes Standard Standard Standard Standard Standard Standard
Feature Pack Optional Mobility Pack Scanning Pack Scanning Pack Scanning Pack Scanning Pack
Digital Camera N/A Standard N/A N/A N/A N/A
LED Worklight N/A Standard N/A N/A N/A N/A
Calibration Sphere Standard Standard Standard Standard Standard Standard
NIST Traceable Length Standard Bar
Optional Standard Optional Standard Optional Standard
Hard Case Standard Standard Standard Standard Standard Standard
Dust Cover Standard Standard Standard Standard Standard Standard
BaseBolt-down base
plateMagnetic
Bolt-down base plate
MagneticBolt-down base
plateMagnetic
Application Software PC-DMIS Portable PC-DMIS PortablePC-DMIS Portable
or PC-DMIS Reshaper
PC-DMIS Portable or
PC-DMIS Reshaper
PC-DMIS Portable or
PC-DMIS Reshaper
PC-DMIS Portable or
PC-DMIS Reshaper
Utility Software RDS RDS RDS RDS RDS RDS
ROMER Absolute Arm Product Line Specifications
Scanning System Accuracy Test: This test most accurately represents the reasonable expectations for machine performance in practical measuring applications while using the laser scanning method. The test methodology is based upon the B89 specification for hard probing, in the absence of specific guidelines for laser scanners. The test consists of measuring a matte grey sphere with 5 different arm articulations. In each articulation of the arm the sphere is scanned from 5 different directions such that the majority of the sphere is scanned. The result is the maximum 3D center to center distance of the 5 spheres.
Specifications are subject to change without notice. Go to http://us.romer.com for latest information.Working temperature: 32°F – 122°F (0°C – 50°C) Storage temperature: -22°F – 158°F (-30°C – 70°C)Humidity: 10% – 90% non-condensing Operational elevation: 0-6600 ft. (0-2000 m)Power requirement: Universal worldwide voltage 110-240 Certification: CE compliant
Performance Data
Model Measuring Range Point Repeatability Volumetric Accuracy Arm Weight
73 Series
7315 4.9 ft. (1.5 m) ±0.0010 in. (0.025 mm) ±0.0015 in. (0.037 mm) 15.6 lbs. (7.1 kg)
7320 6.6 ft. (2.0 m) ±0.0012 in. (0.030 mm) ±0.0017 in. (0.042 mm) 16.3 lbs. (7.4 kg)
7325 8.2 ft. (2.5 m) ±0.0015 in. (0.038 mm) ±0.0020 in. (0.051 mm) 17.0 lbs. (7.7 kg)
7330 9.8 ft. (3.0 m) ±0.0026 in. (0.065 mm) ±0.0037 in. (0.095 mm) 17.6 lbs. (8.0 kg)
7335 11.5 ft. (3.5 m) ±0.0037 in. (0.095 mm) ±0.0051 in. (0.130 mm) 18.3 lbs. (8.3 kg)
7340 13.1 ft. (4.0 m) ±0.0047 in. (0.120 mm) ±0.0059 in. (0.149 mm) 19.0 lbs. (8.6 kg)
7345 14.8 ft. (4.5 m) ±0.0059 in. (0.150 mm) ±0.0067 in. (0.170 mm) 19.6 lbs. (8.9 kg)
75 Series
7520 6.6 ft. (2.0 m) ±0.0006 in. (0.016 mm) ±0.0009 in. (0.023 mm) 17.0 lbs. (7.7 kg)
7525 8.2 ft. (2.5 m) ±0.0008 in. (0.020 mm) ±0.0011 in. (0.029 mm) 17.6 lbs. (8.0 kg)
7530 9.8 ft. (3.0 m) ±0.0013 in. (0.033 mm) ±0.0019 in. (0.049 mm) 18.3 lbs. (8.3 kg)
7535 11.5 ft. (3.5 m) ±0.0017 in. (0.043 mm) ±0.0024 in. (0.061 mm) 19.0 lbs (8.6 kg)
7540 13.1 ft. (4.0 m) ±0.0024 in. (0.061 mm) ±0.0030 in. (0.075 mm) 19.6 lbs (8.9 kg)
7545 14.8 ft. (4.5 m) ±0.0028 in. (0.070 mm) ±0.0032 in. (0.082 mm) 20.3 lbs. (9.2 kg)
6 Axis Absolute Arm for Tactile Measurements
Performance Data
Model Measuring Range Point RepeatabilityProbing Volumetric
AccuracyArm Weight
73 Series SE
7320SE 6.6 ft. (2.0 m) ±0.0017 in. (0.044 mm) ±0.0024 in. (0.061 mm) 17.4 lbs. (7.9 kg)
7325SE 8.2 ft. (2.5 m) ±0.0019 in. (0.049 mm) ±0.0027 in. (0.069 mm) 18.1 lbs. (8.2 kg)
7330SE 9.8 ft. (3.0 m) ±0.0033 in. (0.085 mm) ± 0.0043 in. (0.110 mm) 18.7 lbs. (8.5 kg)
7335SE 11.5 ft. (3.5 m) ±0.0043 in. (0.108 mm) ±0.0054 in. (0.136 mm) 19.4 lbs. (8.8 kg)
7340SE 13.1 ft. (4.0 m) ±0.0047 in. (0.120 mm) ±0.0066 in. (0.168 mm) 20.1 lbs. (9.1 kg)
7345SE 14.8 ft.(4.5 m) ±0.0061 in. (0.156 mm) ±0.0078 in. (0.198 mm) 20.7 lbs. (9.4 kg)
75 Series SE
7520SE 6.6 ft. (2.0 m) ±0.0009 in. (0.023 mm) ±0.0013 in. (0.033 mm) 18.1 lbs. (8.2 kg)
7525SE 8.2 ft. (2.5 m) ±0.0011 in. (0.028 mm) ±0.0015 in. (0.039 mm) 18.7 lbs. (8.5 kg)
7530SE 9.8 ft. (3.0 m) ±0.0019 in. (0.048 mm) ±0.0026 in. (0.066 mm) 19.4 lbs. (8.8 kg)
7535SE 11.5 ft. (3.5 m) ±0.0024 in. (0.061 mm) ±0.0037 in. (0.093 mm) 20.1 lbs. (9.1 kg)
7540SE 13.1 ft. (4.0 m) ±0.0029 in. (0.074 mm) ±0.0042 in. (0.106 mm) 20.7 lbs. (9.4 kg)
7545SE 14.8 ft. (4.5 m) ±0.0035 in. (0.088 mm) ±0.0050 in.(0.126 mm) 21.4 lbs. (9.7 kg)
7 Axis Absolute Arm for External Scanning
All specifications according to B89.4.22 and VDI/VDE 2617-9.
Performance Data
Model Measuring Range Point RepeatabilityProbing Volumetric
Accuracy
Scanning System Accuracy (with RS1
Scanner)Arm Weight
73 Series SI
7320SI 6.6 ft. (2.0 m) ±0.0017 in. (0.044 mm) ±0.0024 in. (0.061 mm) 0.0031 in. (0.079 mm) 18.3 lbs. (8.3 kg)
7325SI 8.2 ft. (2.5 m) ±0.0019 in. (0.049 mm) ±0.0027 in. (0.069 mm) 0.0033 in. (0.084 mm) 19.0 lbs. (8.6 kg)
7330SI 9.8 ft. (3.0 m) ±0.0033 in. (0.085 mm) ± 0.0043 in. (0.110 mm) 0.0047 in. (0.119 mm) 19.6 lbs. (8.9 kg)
7335SI 11.5 ft. (3.5 m) ±0.0043 in. (0.108 mm) ±0.0054 in. (0.136 mm) 0.0058 in. (0.147 mm) 20.3 lbs. (9.2 kg)
7340SI 13.1 ft. (4.0 m) ±0.0047 in. (0.120 mm) ±0.0066 in. (0.168 mm) 0.0071 in. (0.181 mm) 20.9 lbs. (9.5 kg)
7345SI 14.8 ft. (4.5 m) ±0.0061 in. (0.156 mm) ±0.0078 in. (0.198 mm) 0.0084 in. (0.214 mm) 21.6 lbs. (9.8 kg)
75 Series SI
7520SI 6.6 ft. (2.0 m) ±0.0009 in. (0.023 mm) ±0.0013 in. (0.033 mm) 0.0023 in. (0.058 mm) 19.0 lbs. (8.6 kg)
7525SI 8.2 ft. (2.5 m) ±0.0011 in. (0.028 mm) ±0.0015 in. (0.039 mm) 0.0025 in. (0.063 mm) 19.6 lbs. (8.9 kg)
7530SI 9.8 ft. (3.0 m) ±0.0019 in. (0.048 mm) ±0.0026 in. (0.066 mm) 0.0033 in. (0.083 mm) 20.3 lbs. (9.2 kg)
7535SI 11.5 ft. (3.5 m) ±0.0024 in. (0.061 mm) ±0.0037 in. (0.093 mm) 0.0040 in. (0.101 mm) 20.9 lbs. (9.5 kg)
7540SI 13.1 ft. (4.0 m) ±0.0029 in. (0.074 mm) ±0.0042 in. (0.106 mm) 0.0047 in. (0.119 mm) 21.6 lbs. (9.8 kg)
7545SI 14.8 ft. (4.5 m) ±0.0035 in. (0.088 mm) ±0.0050 in.(0.126 mm) 0.0054 in (0.138 mm) 22.3 lbs. (10.1 kg)
7 Axis SI Absolute Arm with Internal Scanner
All specifications according to B89.4.22
73 Series SE
7320SE 6.6 ft. (2.0 m) ±0.0017 in. (0.044 mm) ±0.0024 in. (0.061 mm) 0.0030 in. (0.075 mm) 17.4 lbs. (7.9 kg)
7325SE 8.2 ft. (2.5 m) ±0.0019 in. (0.049 mm) ±0.0027 in. (0.069 mm) 0.0031 in. (0.080 mm) 18.1 lbs. (8.2 kg)
7330SE 9.8 ft. (3.0 m) ±0.0033 in. (0.085 mm) ± 0.0043 in. (0.110 mm) 0.0044 in. (0.113 mm) 18.7 lbs. (8.5 kg)
7335SE 11.5 ft. (3.5 m) ±0.0043 in. (0.108 mm) ±0.0054 in. (0.136 mm) 0.0055 in. (0.140 mm) 19.4 lbs. (8.8 kg)
7340SE 13.1 ft. (4.0 m) ±0.0047 in. (0.120 mm) ±0.0066 in. (0.168 mm) 0.0068 in. (0.172 mm) 20.1 lbs. (9.1 kg)
7345SE 14.8 ft. (4.5 m) ±0.0061 in. (0.156 mm) ±0.0078 in. (0.198 mm) 0.0080 in. (0.203 mm) 20.7 lbs. (9.4 kg)
75 Series SE
7520SE 6.6 ft. (2.0 m) ±0.0009 in. (0.023 mm) ±0.0013 in. (0.033 mm) 0.0021 in. (0.053 mm) 18.1 lbs. (8.2 kg)
7525SE 8.2 ft. (2.5 m) ±0.0011 in. (0.028 mm) ±0.0015 in. (0.039 mm) 0.0023 in. (0.058 mm) 18.7 lbs. (8.5 kg)
7530SE 9.8 ft. (3.0 m) ±0.0019 in. (0.048 mm) ±0.0026 in. (0.066 mm) 0.0031 in. (0.078 mm) 19.4 lbs. (8.8 kg)
7535SE 11.5 ft. (3.5 m) ±0.0024 in. (0.061 mm) ±0.0037 in. (0.093 mm) 0.0038 in. (0.96 mm) 20.1 lbs. (9.1 kg)
7540SE 13.1 ft. (4.0 m) ±0.0029 in. (0.074 mm) ±0.0042 in. (0.106 mm) 0.0045 in. (0.114 mm) 20.7 lbs. (9.4 kg)
7545SE 14.8 ft. (4.5 m) ±0.0035 in. (0.088 mm) ±0.0050 in.(0.126 mm) 0.0052 in (0.133 mm) 21.4 lbs. (9.7 kg)
Configurations Integrated Scanner RS1 CMS108
Max. Point acquisition rate
30,000 Points/s 30,000 Points/s
Points per Line 1000 Max. 2000
Line Rate 30 Hz Max. 53 Hz
Line width 65 mm 124mm/ 60mm/ 24mm
Stand off 150 mm ± 50 mm 180mm ±40mm
Point spacing (min) 0.046 mm Min. 0.025mm
Laser power control Semi-automatic - per line Automatic (per point)
Accuracy (2 sigma) 30 µm 20 µm
Weight 340 g 398g/14oz
Controller Feature Pack External Controller
Laser Safety Class 2M Class 2
Working Temperature 41ºF - 104ºF (5°C - 40ºC) 10° - 42° C (50° - 108° F)
RS1 Integrated Scanner and CMS108 Specifications
7 Axis SE Absolute Arm with CMS108
ROMER Customers Explain the Benefits of Portable MetrologyPortable metrology users across many industries use ROMER arms for many
different reasons, to solve a wide variety of manufacturing problems.
Here are some of their experiences:
Improving Speed and Flexibility
“The complexity of the exterior lighting designs has increased, with flowing shapes and compound angles it makes
it important that we find the best ways to integrate these with the body during assembly so that the fit is correct
from the beginning. We use a lot of portable technology like the ROMER arms in these problem-solving activities in
part because of the portability.”
— Chris Purdy, GM Manufacturing Engineering 3D Scanning Group
“The ROMER PCMM allows us to measure complex parts in a greatly simplified manner. Measurements that
were often time consuming and difficult are now fast and easy. When we are able to inspect parts faster, it affects
our overall productivity. When a machinist brings me a complete part, I can get back to them very quickly to tell
them if their setup is good, so they can continue running the part. You do not want a machine or an operator
sitting idle for long.”
— Greg Steele, Quality Inspector, Hycomp Compressor
“The arm’s versatility sold itself. Our 3D Measurement capability sped up our in-process inspection and delivery
has increased”
— John Hamel, Quality Assurance Manager, Astronics-Luminescent Systems, Inc.
Scrap and Cost Reduction
“When we consider ROI on this purchase, we have reduced setup on inspection by nearly 40%. Just a few years
ago, our scrap per unit produced was at its historical lowest level. This year, we have lowered the rate down to 1/6
of what it was.”
— Joe Dombkowski, Forge Manager, Smith & Wesson
“The ROMER system comes into play every day to verify dimensional controls that were implemented [on the Car
of Tomorrow chassis] for safety and cost containment”
— Jerry Kaproth, Safety Coordinator, NASCAR
Product Design & Development Enhancement
“Time to market is one of our biggest pushes; we cannot take five or six years to design a product. Giving the
engineer a tool that would allow them to spot check their products immediately appealed to the group. For
continuous improvement and shortening time to market, work simply can not sit around in the queue. So the self-
serve model without the programming upfront is key to our effort.”
— Alex Rizzuti, Lead Engineer, ESCO Corporation
“For this type of work, it is definitely an advantage to have an arm. You can get an idea, go measure it, and have your
results in just a couple of minutes. On the other machine, you have to consider what you want to measure, how you
are going to measure it, write an inspection program, and then finally in the fullness of time, you get can get results.”
— John C. Ziegert, Professor, Clemson University International Center for Automotive Research
73 Series SE
7320SE 6.6 ft. (2.0 m) ±0.0017 in. (0.044 mm) ±0.0024 in. (0.061 mm) 0.0030 in. (0.075 mm) 17.4 lbs. (7.9 kg)
7325SE 8.2 ft. (2.5 m) ±0.0019 in. (0.049 mm) ±0.0027 in. (0.069 mm) 0.0031 in. (0.080 mm) 18.1 lbs. (8.2 kg)
7330SE 9.8 ft. (3.0 m) ±0.0033 in. (0.085 mm) ± 0.0043 in. (0.110 mm) 0.0044 in. (0.113 mm) 18.7 lbs. (8.5 kg)
7335SE 11.5 ft. (3.5 m) ±0.0043 in. (0.108 mm) ±0.0054 in. (0.136 mm) 0.0055 in. (0.140 mm) 19.4 lbs. (8.8 kg)
7340SE 13.1 ft. (4.0 m) ±0.0047 in. (0.120 mm) ±0.0066 in. (0.168 mm) 0.0068 in. (0.172 mm) 20.1 lbs. (9.1 kg)
7345SE 14.8 ft. (4.5 m) ±0.0061 in. (0.156 mm) ±0.0078 in. (0.198 mm) 0.0080 in. (0.203 mm) 20.7 lbs. (9.4 kg)
75 Series SE
7520SE 6.6 ft. (2.0 m) ±0.0009 in. (0.023 mm) ±0.0013 in. (0.033 mm) 0.0021 in. (0.053 mm) 18.1 lbs. (8.2 kg)
7525SE 8.2 ft. (2.5 m) ±0.0011 in. (0.028 mm) ±0.0015 in. (0.039 mm) 0.0023 in. (0.058 mm) 18.7 lbs. (8.5 kg)
7530SE 9.8 ft. (3.0 m) ±0.0019 in. (0.048 mm) ±0.0026 in. (0.066 mm) 0.0031 in. (0.078 mm) 19.4 lbs. (8.8 kg)
7535SE 11.5 ft. (3.5 m) ±0.0024 in. (0.061 mm) ±0.0037 in. (0.093 mm) 0.0038 in. (0.96 mm) 20.1 lbs. (9.1 kg)
7540SE 13.1 ft. (4.0 m) ±0.0029 in. (0.074 mm) ±0.0042 in. (0.106 mm) 0.0045 in. (0.114 mm) 20.7 lbs. (9.4 kg)
7545SE 14.8 ft. (4.5 m) ±0.0035 in. (0.088 mm) ±0.0050 in.(0.126 mm) 0.0052 in (0.133 mm) 21.4 lbs. (9.7 kg)
Responding to needs throughout industry for portable, flexible
solutions for measurement and inspection applications, ROMER’s
co-founder patented and marketed the first multi-axis articulated
arm for tube inspection in 1973. Today’s ROMER arms are direct
descendants of that first invention. Decades of continuous
innovation have made ROMER products the technological leader
in the portable arm market.
Portable coordinate measuring machines for industrial production,
assembly, research and development is the ROMER brand’s
specialty in the global Hexagon Metrology offering. The power of
Hexagon Metrology’s global sales, service and support network
ensures that your investment in ROMER products is secure no
matter where in the world your business takes you.
ROMER. Metrology on the go.
ROMER, a brand of
Hexagon Metrology, Inc.
250 Circuit Drive
North Kingstown, RI 02852 USA
Phone: 800-274-9433
Fax: 401-886-2727
E-mail: [email protected]
http://us.ROMER.com
© Hexagon Metrology, Inc. 2011
Features and specifications in this brochure
may change without notice.
Printed in USA - October, 2011
#990151 - For use in the North American Market Only
ISO 9001:2000 and 17025 certified