Surface Roughness Tester MR-RT25D

The METERDI Surface Roughness Tester MR-RT25D is a portable, handheld instrument designed for fast and accurate surface roughness measurement. Its user-friendly design makes it ideal for shop floor use and mobile measurements. The device delivers stable accuracy, easy operation, and a broad range of surface roughness assessments.

Description

The MR-RT25D is engineered for industrial settings, allowing precise roughness measurement of various machinery-processed parts. It evaluates surface textures according to both national and international standards. The tester provides digital and graphical results on its OLED display and supports Bluetooth printing and mobile app control for enhanced usability. Its small size, light weight, and ergonomic design ensure convenience in any working environment.

Key Features

  • Electromechanical Integration: Combines display, driver unit, and sensor in one, ensuring compact size and portability.
  • Multiple Parameters Supported: Measures Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, Rz(JIS), Rs, Rsk, Rsm, Rku, Rc, Ry, Rmax, Rmr, RPc, Rk, Rpk, Rvk, Mr1, and Mr2.
  • Graphical Profiles Display: Shows primary profiles, assessed roughness profiles, and load curves for detailed analysis.
  • Wide Measurement Range: Supports a large measurement range of up to 320µm, covering multiple industrial applications.
  • 3.5-Inch Color OLED Display: The 480*320 dot matrix display offers adjustable backlight and excellent readability, even in dark environments.
  • 4 Profile Filters Supported: Provides Gauss, RC, PC-RC, and D-P filters for enhanced measurement precision.
  • DSP Chip for Data Processing: High-speed data processing with low power consumption, thanks to the advanced DSP chip.
  • Battery Life: Equipped with a 3000mAh lithium-ion rechargeable battery, offering over 50 hours of continuous operation.
  • Battery Indicator: Graphically displays battery level and charging progress to keep the user informed.
  • Data Storage: Stores up to 100 items of raw data and measured profiles for future reference.
  • Real-Time Clock: Allows for real-time clock settings and display, ensuring easy data recording and organization.
  • Energy Efficiency: Comes with automatic sleep and shutdown features for power conservation.
  • Motor Stuck Prevention: Reliable circuit and software design to prevent motor malfunction during operation.
  • Intuitive Interface: Displays a wide range of tips, measurement results, menu prompts, and error messages for ease of use.
  • Standards Compliance: Adheres to ISO4287, ANSI B46.1, DIN4768, and JIS B601 standards, ensuring accurate and reliable results.
  • Computer and Printer Connectivity: Connects to computers and printers for data transfer and report printing.
  • Customizable Printing: Print all or selected parameters based on user preferences.
  • Optional Accessories: Supports additional accessories like curved surface pickup sensors, hole sensors, minute hole sensors, extension rods, printers, and analysis software for expanded functionality.

Highlights

  • Compact Design: Small, lightweight, and easy to use for mobile and on-site roughness measurements.
  • Electromechanical Integration: Combines the main display, driver unit, and sensor in a composite structure.
  • Multi-Parameter Measurement: Measures Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, Rz(JIS), Rs, Rsk, Rsm, Rku, Rc, Ry, Rmax, Rmr, RPc, Rk, Rpk, Rvk, Mr1, Mr2.
  • Graphical & Digital Display: Results shown digitally and graphically on a 3.5-inch color OLED screen.
  • Wide Measurement Range: Capable of measuring up to 320µm, suitable for a wide variety of parts.
  • Bluetooth & Mobile App Support: Wireless operation with Bluetooth printing and app control.

Specification

Name Content
Measurement Range The Z axis (vertical) 320µm (-160µm~160µm) / 12600μin (-6300μin~+6300μin)
The X axis (horizontal) 17.5mm/0.69″
Resolution ratio The Z axis (vertical) 0.002μm/±20μm 0.004μm/±40μm
0.008μm/±80μm 0.02μm/±160μm
Measurement item Parameter Ra Rz Rq Rt Rc Rp Rv R3z R3y Rz(JIS) RyRs Rsk Rku Rmax Rsm Rmr RPc Rk Rpk Rvk

Mr1 Mr2

Standard ISO4287,ANSI b46.1,DIN4768,JISb601
Graphic Primary profile, Roughness profile, load curves
Filter RC,PC-RC,Gauss,D-P
LCD dimensions 3.5-inch 480*320
The sampling length(lr) 0.25,0.8,2.5mm
Assessment length(ln) Ln= lr×n    n=1~5
Sensor Principle The displacement differential inductance
Stylus Natural Diamond, 90B cone angle, 5µm tip radius
Force <4mN
Skid Ruby,Longitudinal radius 40mm
Traversing speed lr=0.25, Vt=0.135mm/s
lr=0.8,  Vt=0. 5mm/s
lr=2. 5,  Vt=1mm/s
Return,  Vt=1mm/s
Accuracy ±(5nm+0.1A)  A: Ra of calibration test block
Repeatability No more than 3%
Power supply Built-in3.7VLithium ion battery,Charger :DC5V,800mA/3hour
Working Time More than 50 hours
Size( L*W*H) Display Unit 158*55*52mm
Drive Unit 115*23*27mm
Weight About 400g
Working Environment Temperature:- 20℃ ~ 40℃Humidity:< 90% RH
Store and Transportation Temperature:- 40℃ ~60℃Humidity:< 90% RH

Delivery Scope

  • 1 x Surface Roughness Tester MR-RT25D
  • 1 x Sensors
  • 1 x Adjustable height support feet
  • 1 x Calibration block
  • 1 x Block bracket
  • 1 x Extension cable
  • 1 x Touch pen
  • 1 x Charger
  • 1 x USB charging cable
  • 1 x Operating manual
  • 1 x Certificate
  • 1 x Guarantee card
  • 1 x Box
  • 1 x Calibration Certificate (at additional cost)

Downloads

Accessories

The METERDI Surface Roughness Tester MR-RT25D is a portable, handheld instrument designed for fast and accurate surface roughness measurement. Its user-friendly design makes it ideal for shop floor use and mobile measurements. The device delivers stable accuracy, easy operation, and a broad range of surface roughness assessments.

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