Portable Surface Roughness Tester

The L.S. Starrett Company’s portable SR100 surface roughness tester determines surface roughness of large components, structures and is a great tool to audit batch production prior to shipment and production line process control.

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The L.S. Starrett Company’s portable SR100 surface roughness tester determines surface roughness of large components, structures and is a great tool to audit batch production prior to shipment and production line process control. 

Weighing only 7 oz., the tester features a gage range of 0.008” and an accuracy of 5 percent of reading plus 4µin.  The tester separates into two pieces to measure surface roughness. Using a base to ensure stability, the bottom half of the unit travels across the measurement surface and sends an electrical signal to the SR100’s upper half. The hand-held upper has a large LCD display and controls. It digitizes the signal from sensor unit and sends it to a microprocessor where it calculates the parameters using standardized algorithms.

The tester uses an infra-red link between the upper and lower units to provide remote, cable-free operation up to a distance of 1 meter. In addition to measuring basic roughness parameters Ra and Rz, the tester also measures advanced Rp, Rv and Rt parameters. It is easy to use, right out of the box and requires little or no operator training, the company says.

Other features include a 5-second cycle time, switch between inch and metric mode without re-measuring, and automatic shutoff after 5 minutes. The tester is user friendly with initial configuration set to minimize problems of use by multiple operators and a simple, reliable calibration routine. The complete package includes the two-piece assembly, calibration standard, batteries, operation guide and a carrying case.  

 

 

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