Model:SRT6200
1.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.
2．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: 10um
         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 : 0.001μm    if reading ＜10μm
                      0.01μm    if 10μm≤reading＜100μm
                      0.1μm    if reading ≥100μm                              
Power Li-ion battery: rechargeable
Operating conditions:  Temp. 0-50℃
                                      Humidity <80%
Size：140x57x48 mm  (5.5x2.2x1.9 inch)    
Weight: about 420 g
Attachment:
Standard Sensor RP-100
Groove Stylus SRP-110
curvature Probe SRP-120
Extension Rod   SER-150
Mesurement Stand   SRS-1
Standard Sample Plate    SSP-180
Cable and Software for RS-232/USB
Bluetooth  interface