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Digital Portable Metal Surface Roughness Tester Automatic Switch Off With High Accuracy

Place of Origin Made in China
Brand Name SADT
Certification ISO
Model Number SR220
Minimum Order Quantity 1
Packaging Details Carrying case with carton
Delivery Time within 3 days after receipt of advanced payment
Payment Terms T/T in advance, Western Union, Paypal

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Product Details
Measuring Range Z Axis (Vertical):320μm (Ra=80μm); X Axis (Horizontal):17.5mm Parameters Ra, Rq, Rz, Rt
Standards ISO, ANSI, DIN, JIS Sampling Length (lr) 0.25 / 0.8 / 2.5mm
Dimension 112×50×47mm (L×W×H) Weight Approximately 360g
Warranty 1 Year Power Supply Built-in Lithium Ion Battery, AC Adapter 5V, 1000mA
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Product Description

Portable metale Surface Roughness Tester With High Accuracy and software to PC


Digital surface roughness tester SR220

SR220 of digital surfaces roughness tester is a small handheld instrument with big LCD, high accuracy and various parameters. It can be used in the laboratory, inspection area or wherever on-site surface roughness testing is required. The measuring data of SR220 can be output to PC or micro printer.



● 28 para meters:Ra, Rq, Rz, Rt, Rp, Rv, RS, RSm, Rz(JIS), Ry (JIS), RSk, R3z , Rmax , Rpc, Rmr, Rku, RΔa , RΔq, Rδc, Ry, Rk , Rpk, Rvk, Mr1, Mr2, A1, A2, V0;

● 320μm wide range high accuracy inductance probe;

● Four filtering methods of RC, PC-RC, GAUSS and D-P;

● Compatible with four standards of ISO, DIN, ANSI and JIS;

● 128×64 2.7” dot matrix OLED displays all para meters, graphs and menu;

● DSP chip is used to control and process data with high speed and low power consumption;

● Built-in lithium ion chargeable battery and control circuit;

● With internal memory chip, it can store 20 groups of measuring data, usingextend SD cardtoextnedun limited memory ;

● Built-in remote control module, can take measurments romotely;

● Design of mechanical and electrical integration is adopted to achieves mallbulk, light weight and easy usage;

● Can be connected to Bluetooth micro printer to print all parameters and graphs;

● Built-in standard micro-USB interface enables communication with PC;

● Automatic switch off, memory and various prompt instructions



Model   SR220
Measuring range Z Axis (Vertical) 320μm (Ra=80μm)
X Axis (Horizontal) 17.5mm
Resolution Z Axis (Vertical) 0.01μm/±20μm
Measurement item Parameters Ra, Rq, Rz, Rt, Rp, Rv, RS, RSm, Rz(JIS), Ry(JIS), RSk, R3z, Rmax, Rpc, Rmr, Rku, RΔa, RΔq, Rδc, Ry, Rk, Rpk, Rvk, Mr1, Mr2, A1, A2, V0;
Standards ISO, ANSI, DIN, JIS
Graphic Roughness profile, Material ratio curve, Direct profile
Filter RC, PC-RC, Gauss, D-P
Sampling length (lr) 0.25 / 0.8 / 2.5mm
Assessment length(ln) Ln= lr×n n=1~5
Probe principle Differential inductance
Stylus Natural Diamond, 90° cone angle, 5μm tip radius
Force <4mN
Skid Ruby, Longitudinal radius 40mm
Traversing speed lr=0.25, Vt=0.15mm/s
lr=0.8, Vt=0. 5mm/s
lr=2. 5, Vt=1mm/s
Return Vt=1mm/s
Accuracy   Less than or equal to ±10%
Repeatability   Less than or equal to 6%
Power supply   Built-in Lithium ion battery, AC adapter 8.4V, 800mA
Dimension   112×50×47mm (L×W×H)
Weight   approximately 360g


Standard package

Main unit 1

Standard probe 1

Calibrate specimen 1

Specimen plate 1

Charger 1

Data transfer cable 1

Remote controller 1

Screw driver 1

Operation manual 1

Carrying case 1