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Surface Roughness Testers SRT-6200

Features
This 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 conditions and 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.
 
Specifications:
Display: 4 digits, 10 mm LCD, with blue backlight
Parameters: Ra, Rz
Display Range:
Ra:   0.05-10.00um/1.000-400.0uinch
Rz:   0.020-100.0um/0.780-4000uinch
Accuracy: Not more than 10%
Fluctuation of display value: Not more than 6%
Sensor:
Test Principle: Inductance type
Radius of Probe Pin: 10m
Material of Probe Pin: Diamond
Measurement Force of Probe: 16mN(1.6gf)
Probe Angle: 90
Vertical Radius of Guiding Head: 48mm
Maximum driving stroke: 17.5mm/0.7inch
Cutoff length (l): 0.25mm / 0.8mm / 2.5mm  optional
Evaluation length: 1~5 cut off  optional
Driving 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/s
Resolution:  0.001m, if reading 10m
                    0.01m, if 10mreading100m
                     0.1m, if reading 100m
Power Li-ion battery: rechargeable
Operating conditions:  Temp. 0~50
                                     Humidity <80%
Size: 140x57x48 mm (5.5x2.2x1.9 inch) 
Weight: about 420 g
 
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