Surface roughness: Surface roughness Mitutoyo SJ-201 / SJ-301, Mitutoyo roughness measuring instrument SJ401/402 Features 
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 No part of the aircraft nose skid, the surface of thread, micro-section measurement of surface shape differences are not beat it. 

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 If equipped with DAT function, can enhance the level of work to make it easier. 

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 High-precision drive with the Department of + decomposition can be detected, which can be ultra-high precision measurement. 

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 Rich in parameters, and roughness can be mapped national specifications. 

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 Large LCD with touch screen, high maneuverability. 




 Performance parameters 

 Metric 

 Model 

 SJ-401 
 SJ-401 
 SJ-402 
 SJ-402 

 NO 
 100V AC 
 178-956-3 
 178-946-3 
 178-95-3 
 178-940-3 

 110V AC 
 178-956-3C 
 178-946-3C 
 178-958-3C 
 178-940-3C 

 120V AC 
 178-956-3A 
 178-946-3A 
 178-958-3A 
 178-940-3A 

 230V AC 
 178-956-3D 
 178-946-3D 
 178-958-3D 
 178-940-3D 

 240V AC 
 178-956-3E 
 178-946-3E 
 178-958-3E 
 178-940-3E 

 Force 
 0.75mN 
 4mN 
 0.75mN 
 4mN 

 Pan range 
 25mm 
 25mm 
 50mm 
 50mm 

 Measuring range 
 800μm, 80μm, 8μm (maximum 240μm, including the optional probe) 

 Detector 
 Probe :178-395 / 178-390 * 

 Detection method: trolley / rail measure 

 Tip: Diamond, 60 ° / 90 ° * (tip radius 2μm/5μm *) 

 Evaluation profile 
 Probe shell: optional rail / trolley 

 P, R, W (waveform contour filter) DIN4776,, 

 Evaluation parameters 
 RA, RY, RZ, RT, RP, RQ, 

 RV, SM, S, PC, R3Z, MR, 

 RPK, RVK, SC, RK, MR1, MR2 

 LO, PPI, R, AR, RX, A1, A2, VO