MEWOI-TRT7200 Surface Roughness Meter Tester

OEM/ODM Testing Instruments Manufacturer

  • Main Features:: Roughness Measurement
  • Model No.:: MEWOI-TRT7200
  • Name:: MEWOI-TRT7200 Surface Roughness Meter Tester

Contact Us for QuotationEmail:mewoi@mewoi.comWhatsapp: +8618620373879

MEWOI-TRT7200 Surface Roughness Meter Tester



MEWOI-TRT7200 Roughness meter 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.


* Be compatible with four standards of ISO, DIN, ANSI and JIS.
* 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.
* Manual or automatic shut down.
* Metric /Imperial Conversion.
* Use USB/RS-232 data output to connect with PC.
* Provide Bluetooth data output choice.


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.


StandardsGB/T6062,ISO4287,DIN4768,JIS B,ANSI46.1
Measuring Range
Ra:0.05~10.00µm      Rz:0.020~100.0µm
 /1.000~400.0µinch      /0.780~4000µinch
Fluctuation of Display Value<<6%
SensorRadius of Probe Pin10µm
Material of Probe PinDiamond
Measurement Force of Probe16mN(1.6gf)
Probe Angle90º
Vertical Radius of Guiding Head48 mm
Maximum Driving Stroke17.5mm/0.7inch
Cutoff length(l)0.25mm,0.8mm,2.5mm
Driving SpeedSamplingWhen Length=0.25mm,Vt=0.135 mm/s
When Length=0.8mm,Vt=0.5mm/s
When Length=2.5mm,Vt=1mm/s
Profile Digital FilterRC,PC-RC,GAUSS,D-P
Evaluation Length1~5L Optional
Data Memorize-------
Operating ConditionsTemp:0~50ºC   Humidity:<80%RH
Power SupplyBuilt -in Rechargeable Li-ion Battery
Dimensions140x52x48 mm
Standard AccessoriesMain Unit
Standard Sample Plate SSP-100
Standard Sensor SSP-100
Small Screwdriver
Power Adapter
Carrying Case ( B09 )
Operation Manual
Optinal AccessoriesRS-232C Cable with Software
Bluetooth Adapter with Software
Extension Rod SER-150
Groove Stylus SRP-110
Curvature Probe SRP-120
Measurement Stand SRS-1


Model No.Measuring ParametersRangeAccuracyResolutionProfile Digital FilterEvaluation LengthMemoryPower SupplyOthers



Ra、Rz(ISO)、Ry、Rq、Rt、Rp、Rv、Rz(JIS)、Rmax、 R3z、RSk、RS、RSm、RPc、Rk、Rpk、Rvk、Mr1、Mr2Ra:0.05~12.5µm     Rz:0.020~160.0µm<<±10%,Fluctuation:<<6%0.001RC,PC-RC,GAUSS,D-P1~5L OptionalYesRechargeable



Ra,RzRa:0.05~10.00µm  Rz:0.1~50.0µm<<±15%,Fluctuation:<<10%0.001/0.01/0.1---1~2L Optional---4x1.5V AA



Ra,RzRa:0.05~10.00µm    Rz:0.020~100.0µm<<±10%,Fluctuation:<<6%0.001/0.01/0.1RC、PC-RC、GAUSS、D-P1~5L Optional---Rechargeable
MEWOI-KD320-Surface-roughness-gauge.80.jpgMEWOI-KD320Ra, Rz, Rq, Rt

Ra, Rq: 0.05-15.0

Rz, Rt : 0.1-50.0

±(7-10)%0.01RC、PC-RC、GAUSS、D-P1.25, 4.0, 5.0---Rechargeable
MEWOI-KD330-surface-roughness-gauge.80.pngMEWOI-KD330Ra, Rz, Rq, Rt

Ra, Rq: 0.05-15.0

Rz, Rt : 0.1-50.0

±(7-10)%0.01RC、PC-RC、GAUSS、D-P1.25, 4.0, 5.0---Rechargeable
MEWOI-KD420-surface-roughness-gauge.80.jpgMEWOI-KD420Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr, Rx;

Ra: 0.005-16.000

Rz: 0.02-160.00

MEWOI-KD450-surface-roughness-gauge.80.01.jpgMEWOI-KD450Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr, Rx;

Ra: 0.005-16.000

Rz: 0.02-160.00