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   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

Standard Delivery

Main Unit                      1
Carrying Case              1
Standard Sensor          1
Standard Sample Plate 1
Power Adapter              1
Operation Manual         1
Screwdriver                   1
Adjustable Leg              1
Sensor Protector           1

Optional Accessories

Cable and Software for RS-232
Extension Rod
Measurement Support

Special pick-up for grooves,bores and holes