Surface Roughness Tester SRT-6200

Model:SRT62001.FEATURESThis instrument is compatible with four standards of  ISO, DIN, ANSI and JIS and is widely used in production site to measure surface roughness of various machinery-processed parts, calculate corresponding parameters according to selected measuring conditionsand clearly display all measurement parameters.When measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism inside the tester. The sensor gets the surface roughness by the sharp built-in probe. This roughness causes displacement of the probe which results in change of inductive amount of induction coils so as to generate analogue signal, which is in proportion to the surface roughness at output end of phase-sensitive rectifier. The exclusive DSP processes and calculates and then outputs the measurement results on LCD. * Very easy to operate * Multiple parameter measurement: Ra, Rz* Highly sophisticated inductance sensor* Built-in lithium ion rechargeable battery and control    circuit with high capacity* Small in size, light in weight and easy to use* Can communicate with PC computer for statistics,    printing and analysing by the optional cable and the    software for RS232C interface.*Manual or automatic shut down. The tester can be     switched off  by pressing  the Power key at any time.    On the other hand, the tester will power itself off    about 5 minutes after the last  key operation.2．SPECIFICATIONSDisplay： 4 digits, 10 mm LCD, with blue backlightParameters:  Ra, RzDisplay  Range            Ra:   0.05-10.00um/1.000-400.0uinch           Rz:   0.020-100.0um/0.780-4000uinchAccuracy: Not more than 10%Fluctuation of display value: Not more than 6%Sensor :          Test Principle: Inductance type         Radius of Probe Pin: 10um         Material of Probe Pin: Diamond         Measurement Force of Probe: 16mN(1.6gf)         Probe Angle: 90°         Vertical Radius of Guiding Head: 48mmMaximum driving stroke:  17.5mm/0.7inchCutoff length (l): 0.25mm / 0.8mm / 2.5mm  optionalEvaluation length:  1~5 cut off  optionalDriving speed:          sampling length = 0.25mm   Vt=0.135mm/s         sampling length = 0.8mm    Vt=0.5mm/s         sampling length = 2.5mm    Vt=1mm/s         returning                                Vt=1mm/sResolution : 0.001μm    if reading ＜10μm                      0.01μm    if 10μm≤reading＜100μm                      0.1μm    if reading ≥100μm                               Power Li-ion battery: rechargeableOperating conditions:  Temp. 0-50℃                                      Humidity <80% Size：140x57x48 mm  (5.5x2.2x1.9 inch)     Weight: about 420 gAttachment:Standard Sensor RP-100Groove Stylus SRP-110curvature Probe SRP-120Extension Rod   SER-150Mesurement Stand   SRS-1Standard Sample Plate    SSP-180Cable and Software for RS-232/USBBluetooth  interface