Handheld Stable Surface Roughness Tester With High Accuracy For Shop Floor
 
 
SR210 / SR220 portable 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.
Key features:
 
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;
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;
Design of mechanical and electrical integration is adopted to achieve small bulk, light weight and easy usage;
 
 
Specifications
 
| Model | SR210 | SR220 | |
| 
			  Measuring range  | 
			Z Axis (Vertical) | 320μm (Ra=80μm) | |
| X Axis (Horizontal) | 17.5mm | ||
| Resolution | Z Axis (Vertical) |  0.01μm/±20μm 0.02μm/±40μm 0.04μm/±80μm 0.08μm/±160μm  | 
		|
| Measurement item | Parameters | Ra, Rq, Rz, Rt | 
			  Ra, Rq, Rz, Rt, Rp, Rv, RS, RSm, Rz(JIS),  | 
		
| Standards | ISO, ANSI, DIN, JIS | ||
| Graphic | 
			  Roughness profile, Material ratio curve,  | 
		||
| 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 5V,1000mA  | 
			Built-in Lithium ion battery, AC adapter 8.4V, 800mA | |
| Dimension | 112×50×47mm (L×W×H) | ||
| Weight | approximately 360g | ||