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JD220 Surface Roughness Tester

Measurement parameters: Ra, Rz, Rq, Rt
Length of time (mm) : 6
Sampling length (mm) : 0.25, 0.80, 2.50
Evaluation length (mm) : 1.25, 4.0
Value error: plus or minus 15%
Measurement range (mm) : Ra: 0.05 ~ 10.0 Rz: 0.1 ~ 50
Show value volatility: < 12%
  • detailed
  • Technical index

Main feature:    

*Shell used to pull aluminum mold design, durable, anti-electromagnetic interference ability significantly, in line with the design of the new trend.

*Using high-speed DSP processor for data processing and calculation, measurement and computation speed is greatly improved.

*Liquid crystal display wide temperature using OLED color display, popular high brightness, no visual angle, is suitable for various occasions.

*The lithium ion rechargeable battery, can work for a long time, no memory effect, can while charging, charging time is short, long battery life.

* Using a dedicated charger or computer USB port for charging, convenient and quick.

*Real-time monitoring of lithium battery power and display, and to remind users to charge with charging progress indication.

*Automatic shutdown function and low power design of software and hardware of the instrument with long working hours, suitable for field use.

*The surface roughness of metal and non-metallic.

*Pocket-size & economically price

*Large measuring range suitable for most materials

*Optimized electric circuit design with transducer structure-design, high integrate power.

*It could test ex-circle, flat surface, conical surface and also test groove larger than 80*30mm.


Technical Specification:

*Testing parameters:Ra, Rz, Rq, Rt

*Measuring range (um):Ra, Rq: 0.05-15.0

                                    Rz, Rt : 0.1-50.0


*Sample length (mm):0.25, 0.80, 2.50

*Evaluation length(mm):1.25, 4.0, 5.0

*Stroke length (mm):6

*Indication accuracy:0.01

*Indication error:±(7-10)%

*Variability:<12%

*Power:Rechargeable li-battery

*Stylus static force:≤ 0.016N

*Force measuring rate of change:≤ 800N/m

*Working temperature:-20℃40℃

*Relative humidity:<90%

*Weight of Host:200g

*Size:106mm*70mm*24mm


Standard configuration:

*Host                                            1

*Calibration block and bracket      1

*Charger                                       1

*Data line                                      1

*Operating manual                        1

*Warranty card                              1

*Certificate of approval                  1

*Instrument case                           1