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Portable 3D Measurement and Inspection  Products/Services

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Romer® Portable CMM's

 

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Metrology product family, and all ROMER arms that came before, The ROMER Absolute Arm is the lightest, most accurate, most flexible ROMER arm ever. Portable metrology devices not only need to be accurate, they must be reliable in less than favorable production conditions. The technologies used to build every Absolute Arm are chosen based on the experience of thousands of units in the field that are required to perform accurately, every time. The accuracy of a portable arm is, in fact, the sum of its parts.

 

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Features


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  1. Patented Infinite Rotation in the principle axes allows access to difficult to reach areas, while avoiding damaging the arm against rotational hard stops.
  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 to graphically document setups.
  4. Patented SpinGrips are infinitely rotating, low-friction "approved" hand hold positions for better user ergonomics. SpinGrips allow the arm to "float" in the operator's hands, reducing stress on the arm thus maximizing accuracy and repeatability while minimizing user fatigue.
  5. Absolute Encoders improve overall accuracy and eliminate all complicated "homing" procedures.
  6. Aerospace grade 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, and more.
  10. Universal thread mount base attaches to a variety of available base and stand options including magnetic bases.

Feature Pack Options for 6-Axis Absolute Arms:

  • Mobility Pack: A rechargeable battery and WiFi transmitter allows completely wireless use of the Absolute Arm.
  • "No Pack" Option: The Absolute Arm is completely functional without a feature pack, using a 110/220v power connection.

Configurations

 

The ROMER Absolute Arm 73 and 75 series offer two different levels of performance and features to suit most inspection requirements.

 

73-Series 75-Series
Absolute Encoders Included Included
Zero-G Counterbalance with Lock Included Included
SpinGrips N/A Included
TESA TKJ Connector Included Included
3 TESA Hard Probes Included Included
Feature Pack Optional ROMER Mobility Pack
Digital Camera N/A Included
LED Worklight N/A Included
Certified Calibration Sphere Included Included
NIST Traceable Length Standard Bar Optional Included
Hard Case Included Included
Dust Cover Included Included
Base Bolt-down base plate Magnetic
Travel Case Included Included
Application Software PC-DMIS Portable PC-DMIS Portable
Utility Software RDS RDS



Specifications

6-Axis ROMER Absolute Arm Probing Specifications – 73 series

 

Model3 Measuring Range Probing
Point Repeatability1
Probing
Volumetric Accuracy2
Arm Weights

7315

1.5 m / 4.9 ft. ± 0.025 mm / 0.0010 in. ± 0.037 mm / 0.0015 in. 7.1 kg / 15.6 lbs.

7320

2.0 m / 6.6 ft. ± 0.030 mm / 0.0012 in. ± 0.042 mm / 0.0017 in. 7.4 kg / 16.3 lbs.

7325

2.5 m / 8.2 ft. ± 0.038 mm / 0.0015 in. ± 0.051 mm / 0.0020 in. 7.7 kg / 17.0 lbs.

7330

3.0 m / 9.8 ft. ± 0.059 mm / 0.0023 in. ± 0.075 mm / 0.0030 in. 8.0 kg / 17.6 lbs.

7335

3.5 m / 11.5 ft. ± 0.079 mm / 0.0031 in. ± 0.100 mm / 0.0039 in. 8.3 kg / 18.3 lbs.

7340

4.0 m / 13.1 ft. ± 0.099 mm / 0.0039 in. ± 0.125 mm / 0.0049 in. 8.6 kg / 19.0 lbs.

7345

4.5 m / 14.8 ft. ± 0.120 mm / 0.0047 in. ± 0.150 mm / 0.0059 in. 8.9 kg / 19.6 lbs.

 

6-Axis ROMER Absolute Arm Probing Specifications – 75 series

 

Model Measuring Range Probing
Point Repeatability1
Probing
Volumetric Accuracy2
Arm Weights

7520

2.0 m / 6.6 ft. ± 0.016 mm / 0.0006 in. ± 0.023 mm / 0.0009 in. 7.7 kg / 17.0 lbs.

7525

2.5 m / 8.2 ft. ± 0.020 mm / 0.0008 in. ± 0.029 mm / 0.0011 in. 8.0 kg / 17.6 lbs.

7530

3.0 m / 9.8 ft. ± 0.030 mm / 0.0012 in. ± 0.044 mm / 0.0017 in. 8.3 kg / 18.3 lbs.

7535

3.5 m / 11.5 ft.

± 0.040 mm / 0.0016 in.

± 0.057 mm / 0.0022 in.

8.6 kg / 19.0 lbs.

7540

4.0 m / 13.1 ft. ± 0.055 mm / 0.0022 in. ± 0.069 mm / 0.0027 in. 8.9 kg / 19.6 lbs.

7545

4.5 m / 14.8 ft. ± 0.070 mm / 0.0028 in. ± 0.082 mm / 0.0032 in. 9.2 kg / 20.3 lbs.

All specifications according to B89.4.22.

1 The Point Repeatability Test is the reference test to determine measurement arm repeatability with ball probe. The cone is in front of the machine. Points are measured from multiple approach directions. The average point and the deviation of each point to the average center are calculated. The result is the maximum range divided by two.

2 The Volumetric Accuracy Test is the most representative test for volume measurement accuracy. A gage block with a known and certified length is measured several times throughout the working volume. This gage block is installed in different positions and measured depending on multiple approach directions. The result is the maximum deviation of the measuring distance less the theoretical length.

 

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Click Here to download the ROMER Absolute Arm brochure.

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