Surface Roughness Tester

Surface Roughness Tester

Mitutoyo Surface Roughess Tester

Surface Roughness Tester

The new Surftest® SJ-210 portable surface roughness tester combines high accuracy and measurement speed with numerous innovative features creating a new class leader in surface inspection.

  • 2.4” color LCD display includes backlighting and over-size fonts
  • Display direction can be changed to be read vertically or horizontally right and left -handed
  • Color tolerance judgments, evaluation curves and all data can be displayed in one of 16 languages
  • Self-timed measurement supported
  • Security management supports password protected function locks
  • A micro-SD card supports high-volume portable data storage – up to 10,000 results can be stored
  • Screen capture to memory card also supported
  • Optional footswitch can be used for touch-free measurement
  • Multiple output options include RS-232C and USB for maximum versatility

Phase II Surface Roughness Tester

Surface Roughness Tester

The newest addition to our state-of-the-art surface roughness testers /profilometers, the SRG-4600 will instill the highest level of confidence in your production, shop floor or QC lab. Extended memory and output coupled with many updated useful functions, the SRG-4600 surface roughness tester/profilometer is clearly the new leader in ultra accurate surface roughness/profile testing. These surface roughness testers/profilometers are distinguished by a high level of accuracy, multiple parameters and simplicity of operation. Extremely sensitive and highly accurate readings from this Phase II surface roughness tester/profilometer is offered via 9 popular surface roughness scales including Ra, Rq(Rms), Rt, Rz and Rmax.

The new diamond stylus is hypersensitive and sophisticated enough to allow for a .001 (um) micron display resolution. The SRG-4600 surface roughness tester/profilometer can utilize an easy interface to allow for changes of in/mm (uin/um), cutoff length, sampling length, parameters, level of test(stylus position), digital filters and more! Surface roughness measurement results are displayed as large characters on the LCD screen for easy recognition.

Battery powered portability allows the SRG-4600 surface roughness tester/profilometer to mobilize productivity throughout the shop.Further, a wireless Bluetooth auto-start comes standard with each unit. Optional Micro Printer is available, as well as optional stand and software.

GAR Precision REference Standard-Calibrated

Surface Roughness Tester

The GAR Precision Reference Standard shows actual patch mean values certified by the National Institute of Standards and Technology.

The GAR Precision Reference Standard provides an economical calibration tool which permits the technician to calibrate surface analyzing equipment to its peak efficiency. It is the only calibration block on the market to show the actual patch mean values of low and high microinch surfaces and certified by the National Institute of  Standards and Technology. (N.I.S.T.).

The surface of the Precision Reference Standard consists of a series of parallel, uniform, “V-shaped” grooves having an included angle of 150° between the sides. Since the surface character of the Precision Reference Standard is unlike normally machined surfaces, it is not recommended for use in visual and tactual comparison.

The Precision Reference Standard is rectangular in shape, (2 1/2″ x 3 3/4″), made of electroformed nickel and is rhodium plated for superior abrasion resistance.
The  Precision Reference Standard is supplied in a leather case and includes certification traceable to N.I.S.T.

Individually serialized, calibrated and certified reference standards are also available.

Method of Calibration used as reported by N.I.S.T.

The patch mean values identified on the border of the standard is the roughness average (Ra) obtained from five measurements taken in the areas defined in the  sketch shown. The sketch applies to both patches by simply rotating the standard 180°. These values represent the average surface roughness of each trace using 0.0004″ (0.010mm) radius diamond stylus and a 0.030″ (0.8mm) roughness width cutoff, in accordance to the American National Standards Institute (ANSI) specification titled: “Surface Texture, Surface Roughness, Waviness and Lay”. ANSI/ASME B46.1

The Specimen under test was calibrated by a one-step transfer from the appropriate master using a stylus type instrument. Five measurements were made over each of five areas distributed over the whole specimen.

Reports of Calibration by U.S. Department of Commerce, National Institute of Standards and Technology

The property of  surface roughness in the 125 microinch range and below is maintained by N.I.S.T. by means of master roughness specimens conforming to ANSI B46.1. The master specimens were calibrated by measuring their surface profile with a stylus instrument which in turn was calibrated by a interferometrically measured step. The areas under the profile curves were then measured and the roughness average computed. The accuracy of this measurement is  2% for the 119.5 and 1 microinch for the 16.1.