R-4000 Surface Roughness Tester with Display of Computed Profile

The R-4000 surface roughness tester is able to display computed profile on the screen, so as to picture the roughness of tested surface. There are various optional sensors to satisfy different requirements. Our price-performance ratio is even higher many mainstream models, such as SJ-301 and TR-220. The roughness measuring device is suitable for measuring the surface roughness of multiple machining components on the spot. The surface roughness meter may calculate corresponding parameters in accordance with selected measurement conditions. Its LCD clearly displays all the measuring results and graphs.

Functions and Features
1. High-precision inductive transducer
2. The surface roughness tester is capable of displaying 15 roughness parameters.
3. With rapid speed and low power dissipation, it makes use of a digital signal processor to process and control data.
4. It uses mechanical-electrical integration design, and comes with small size, light weight and easy operation.
5. Its high-quality Li-ion battery is proud of large capacity and no memory effect. Therefore, the roughness measuring device is able to continuously work for more than 20 hours.
6. After connecting to a printer, it can print measured parameters and profiles.
7. Through its standard USB ports, it realizes the communication with a PC.
8. The device may be equipped with a curved surface sensor or a small bore sensor to meet different demands.
9. The surface roughness tester can be applied in conjunction with a deep slot sensor to measure the roughness of slot bottom or steps.
10. Menu operation mode
11. Graphical display function
12. Position indication of sensor stylus
13. Auto power-off with memory function
14. Multiple language options

Main Parameters
1. Measured parameters: Ra, Rz, Ry, Rq, Rt, Rp, Rs, Rv, Rms(Rq), Rmax, Rm, R3z, Rsk, Rpc, Rmr
2. Surface roughness standard: ISO/DIN/JIS/ANSI
3. Resolution: 0.01um/ /-20um, 0.02um/ /-40um, 0.04um/ /-80um
4. Precision: ≤±10%
5. Repeatability: ≤6%
6. Measuring range:
1) Ra, Rq:0.01-40um
2) Rz, Ry, Rp, Rt, R3z, Rm:0.02-160um
3) Sm,S:2-4000um
4) Rsk:0-100%
7. Maximum stroke: 0.7in (17.5mm)
8. Sampling length: 0.009/0.03/0.09inch (0.25/0.8/2.5mm)
9. Speed
1) 1mm/s (sample length: 2.5mm),
2) 0.5mm/s (sample length: 0.8mm),
3) 0.135mm/s (sample length: 0.25mm)
10. Sensor: Inductive transducer
11. Stylus type: Diamond stylus with the radius of 5um
12. Filter: RC, PC-RC, GAUSSIAN, D-P
13. Output: USB
14. Operating temperature: 41℉-104℉ (5℃-40℃)
15. Weight: 0.97lb (440g)
16. Dimension: 119*47*65mm
17. Power supply: Li-ion rechargeable battery
18. Automatic shut

Technical Parameters
1. The surface roughness tester can measure plane, slope, inner diameter and outer diameter.
2. It is able to measure groove and concave surface that are wider than 0.16"(4mm).

Optional Accessories
1. Precision stand
2. 90° stylus
3. Deep slot stylus
4. Small bore stylus
5. Curved surface stylus
6. Extension rod