This is a high accuracy instrument for measuring surface roughness. It can be used on variety of machining parts and operates on various surfaces, not only flat but also outer cone, outer cylinder, curved, pinholes, grooves, recesses grooves and axle etc.

Application
Portable Surface Roughness Tester allows surface roughness measurement both on metal and non-metal work-piece. It is suitable for machining and manufacturing, quality control, inspection departments, especially for measurement on large and heavy work-piece, assembly line on site. The is a Non Destructive Testing instrument, damage won’t caused to testing piece.

Main Feature
 Mechanics and ergonomics design, small size, light weight, easy to operation;
 Drive unit can be either stored inside main unit or split from it, which enables freely adjustable test in each direction, such as up, side, etc;
 DSP chip control and data processing, high speed, low power consumption;
 22 Parameters: Ra ,Rz, Rq, Rt, Rp ,Rv, R3z, R3y, Rz(JIS), Rs, Rsk, Rsm, Rku, Rmr, Ry(JIS), Rmax,RPc, Rk, Rpk, Rvk, Mr1, Mr2;
 Measurement range up to 160μm (can be optional to 320μm);
 3.5 inches color graphic LCD touch screen, wide viewing angle, excellent readability and an intuitive rich display, it includes a backlight to improve visibility in
   dark environments;
 Can be operated using buttons or touch screen;
 Supported operating via mobile APP and printing via Bluetooth connection (optional);
 Built-in lithium-ion rechargeable battery and control circuit, high capacity, no memory effect, it works over 50 hours while fully charged, and there is remaining
   charge indicator, charging hint;
 Large capacity data storage, 100 item of raw data and wave-forms can be stored;
 Real-time clock setting and display for easy data recording and storage;
 With auto sleep, auto power off, power-saving features;  Reliable circuit and software design to preventing the motor stuck;
 Language: Chinese and English switch freely;  All parameters or any of the parameters which set by users can be printed;
 Optional accessories: Bluetooth capability, curved sensor, pinholes sensors, measurement, stand, extension rod, printer;
 Portable Surface Roughness Tester complies with international standards ISO, DIN, ANSI, JIS.

Technical Specification
Measurement Range : The Z axis (vertical) ±80μm / ±160 µm（enhanced model） The X axis (Transverse) 20mm
Resolution : The Z axis (vertical) 0.01μm / ±20μm 0.02μm / ±40μm 0.04μm / ±80μm 0.08μm / ±160μm
Measurement item :  Parameter - Ra,Rz,Rq,Rt,Rp,Rv,R3z,R3y,Rz(JIS),Rs,Rsk,R sm,Rku,Rmr,Ry(JIS),Rmax,RPc,Rk,Rpk,Rvk, Mr1, Mr2)
                               :  Standard - ISO,ANSI,DIN,JIS
                               :  Graphic - Bearing area curve, Roughness profile, Primary profile
Filter : RC,PC-RC,Gauss,D-P
The sampling length(lr) : 0.25, 0.8, 2.5mm
Assessment length（ln）:  Ln= lr×n n=1~5
Sensor -  Measuring method : skidded
                Stylus tip :  Diamond, 90 cone angle, 5μmR
                Force :  <4mN
               Skid part : hard alloy, skid radius of curvature: 40mm
               Traversing speed : lr=0.25, Vt=0.135mm/s
                                              lr=0.8, Vt=0. 5mm/s
                                              lr=2. 5, Vt=1mm/s
                                              Return Vt=1mm/s
Accuracy : Less than ±10%
Repeatability : Less than 6%
Power supply :  Built-in Lithium ion battery
                          Charger: DC5 V, 800mA
Outline dimension : Main unit: 64*53*160mm
                                Drive: 23*27*115mm
Weight（main unit）:  Around 380g
Working Environment : Temperature: - 20℃ ~ 40℃
                                      Humidity: < 90% RH
Store and Transportation : Temperature: - 40℃ ~ 60℃
                                           Humidity: < 90% RH

Measuring Range
Parameter                                Range
Ra, Rq                                      0.005μm ~ 30μm
Rz, R3z, Ry, Rt, Rp, Rm          0.02μm ~ 320μm
Sk                                             0 ~ 100%
S,Sm                                         1mm
tp                                               0 ~ 100%

Standard Configuration ·
Main unit 1 piece · Sensor Drive 1 piece · Standard Sensor 1 piece · Calibration block and bracket 1 piece · Height adapter 1 piece · Power adapter 1 set · Operating manual 1 set