SRG-4000

SRG-4000 PORTABLE SURFACE ROUGHNESS TESTER PROFILOMETER

The latest in state-of-the-art surface roughness testers profilometer, the SRG-4000 is designed with the shop environment in mind. These surface roughness testers profilometer 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 are offered via multiple surface roughness profilometer parameters, Ra, Rq(Rms), Rt and Rz.

The diamond stylus is hypersensitive and sophisticated enough to allow for a .001 (um) micron display resolution. The SRG-4000 surface roughness testers profilometer 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! Measurement results are displayed as large characters on the LCD screen for easy recognition.

Battery powered portability allows the SRG-4000 surface roughness testers profilometer to mobilize productivity throughout the shop.

Optional accessories available for the SRG-4000 surface roughness testers profilometer include:

• 2um Stylus
• Extension Rod
• Stand
• NIST certified surface roughness standard

Features:

• Menu driven operating system
• 4 Different roughness parameters
• Inside/Outside Diameters
• Stylus position indicator
• RS 232 output to printer/PC
• Extended memory functions

Technical Specifications:

Roughness Parameters	Ra, Rz, Rq, Rt
Assessed Profiles	Primary profile(p), Roughness profile(R) tp curve (Mr)
Conformance Standards	ISO/DIN/JIS/ANSI
Measuring System	Metric μm, Imperial μ inch
Display Resolution	+/-20 μm = 0.001 μm +/-40 μm = 0.002 μm +/-80 μm = 0.004 μm
Display Range	Ra, Rq: 0.005 μm up to 16 μm Rz, Rt: 0.02 μm up to 160 μm
Pick Up Measuring Range:	+/- 80 μm
Sensor Specifications	5 μm Diamond Tip Stylus
Sensor Angle	90°
Contact Force	4mN (0.4gf)
Display features	Stylus position sensor Battery level indicator Direct display of parameters Direct printing Auto-off with auto store
Data output	RS 232 to printer/PC
Cut-off lengths	0.25mm/0.8mm/2.5mm
Tracing length Lt	1.3mm – 17.5mm
Digital Filter	RC, PC-RC, GUASSIAN, D-P
Detector	Diamond tip radius 5 μm
Power	Li-Ion battery
Working temperature	5-40 degrees C
Dimensions	139mm x 56mm x 48mm
Weight	450g

Surface Roughness Tester Measurement Profilometer Guide

Surface roughness, for purposes of this forum, is the result of some machining process and its effect on the material surface in question.

Skid type surface roughness testers are common instruments used on the shop floor. A diamond stylus is traversed across the specimen and a piezoelectric pickup records all vertical movement. Peaks and valleys are recorded and converted into a known value of a given parameter.

Parameters differ in how they approach looking at peaks and valleys. The most popular parameter is “Ra”. Ra is commonly defined as the arithmetic average roughness. While the Ra parameter is easy and efficient, there are other parameters that can be more specific and useful depending on the application requirements. It is the parameters that enable us to define surface roughness.

Today, for the purpose of checking Ra values, the use of portable, hand held, surface roughness testers are not only economical, but are digital and easy to use. These surface roughness testers are a given necessity for any shop floor that receives work with Ra requirements.