MR200 Mattel Roughness Tester

Product Description

product description

The MR200 portable roughness meter is an upgraded product carefully developed by Mattel. The product uses the current processor and a 2.7-inch OLED display, which significantly improves the user's roughness test experience. The hardware design is exquisite, the data processing rate is high, and the protection measures are Perfect, with many advantages in one, it has been favored by users since its inception. It has a super long-range design and a detection range far beyond that of similar products. It can meet the needs of various users through MICRO-USB interface or standard Bluetooth module and SD storage Card, can realize wireless remote control start and measurement; support on-site Bluetooth printer wireless communication, mass storage of data through PC. It is widely used in the quality control of various precision metal processing and manufacturing processes. It is a professional precision instrument necessary to improve the production qualification rate and save costs.

Functional use

A hand-held instrument required for production environment and mobile measurement.

working principle

This instrument uses the needle trace method to measure the surface roughness of the workpiece

When measuring the surface roughness of the workpiece, the sensor is first placed on the measured surface of the workpiece, and then the instrument is started for measurement. The precision drive mechanism inside the instrument drives the sensor to slide along the measured surface at a constant speed. The sensor passes through the built-in sharp The stylus feels the roughness of the measured surface. The roughness of the measured surface of the workpiece will cause displacement of the stylus, which changes the inductance of the sensor's inductance coil, thereby generating an analog signal proportional to the measured surface roughness at the output of the phase-sensitive detector. The signal enters the data acquisition system after amplification and level conversion. The ARM chip performs digital filtering and parameter calculation on the collected data, and the measurement results are given on the OLED display. You can connect to a Bluetooth printer wirelessly to print all the measurement parameters, you can also communicate with a PC through a data cable, and use computer software to further analyze the data.

Working conditions

Ambient temperature: operating temperature -20℃～＋50℃

Storage temperature: -30℃～＋70℃

Relative humidity ≤90%

There is no strong vibration, no strong magnetic field, no corrosive medium and serious dust in the surrounding environment

Instrument characteristics

28 measurement parameters: Ra, Rq, Rz, Rt, Rp, Rv, RS, RSm, Rz (JIS), Ry (JIS), RSk, R3z, Rmax, RPc, Rmr, Rku, RΔa, RΔq, Rδc, Ry ; Rk, Rpk, Rvk, Mr1, Mr2, A1, A2, V0

Using 320μm large-range high-precision inductive sensor

Four filtering methods: RC, PC-RC, GAUSS, D-P

Compatible with four standards: ISO, DIN, ANSI, JIS

Using a 2.7-inch large screen 128×64 dot matrix OLED display, no backlight, no dead spots, can display all parameters, outline graphics and Chinese and English menus

Use today's most mainstream chip for instrument control and data processing

Built-in memory can store complete data of 20 groups of measurements

External SD card can expand mass storage data

Built-in wireless remote control module for remote measurement

Built-in standard bluetooth module, can connect to bluetooth printer wirelessly, print all parameters and outline graphics

Built-in standard MICRO-USB interface, can communicate with PC, can use special software to analyze and manage measurement results

Built-in lithium polymer rechargeable battery and charging protection circuit

Mechatronics design, smaller size, easy to carry

With automatic shutdown of power saving function, each operation has prompt information

Complete accessories, optional surface sensor, deep groove sensor, small hole sensor, very small hole sensor, tooth surface sensor, small column, fine-tuning platform, extension rod, lateral transfer rod and other accessories

Operation method and matters needing attention

Handheld measurement

After inserting the sensor into the instrument, measure directly on the surface of the workpiece. In addition to setting the correct measurement conditions, you should also pay attention to:

a. The main body of the sensor should be kept horizontal

b. The sliding direction of the sensor should be perpendicular to the processing texture of the workpiece.

Use height ruler column

a. Carefully insert the standard sensor into the instrument, and then install it on the connecting part of the column, and confirm that it is locked;

b. Adjust the carriage of the column to a position slightly higher than the surface of the workpiece, and descend until the sensor touches the workpiece. This process must be operated carefully, especially when the sensor is about to touch the workpiece;

c. Adjust the main body of the sensor to the visual level and observe whether the position of the stylus is near the center;

d. When raising and lowering the sensor, be sure to pay attention to the direction, the wrong drop will damage the sensor.

Indicating value calibration

①Measure multi-line pattern template;

②Read Ra value;

③Compare with the model value. Precautions

1. Be especially careful when plugging or unplugging the sensor. Take care not to touch the guide and contact pins. These are the key parts of the entire instrument. Try to hold the root of the sensor guide bracket (the front of the main body) to plug and unplug.

2. When the sensor is used up, it should be packed into the box in time

Instrument care and maintenance

When there is an abnormal phenomenon in the instrument, please refer to the fault index table first to eliminate common faults, such as failure to measure, abnormal LCD display, excessive error, keyboard operation failure or confusion, etc., please do not disassemble or adjust any fixed assembly zero without authorization. Parts should be handed over to the after-sales maintenance department of our company for inspection, repair and disposal. Scan the following two-dimensional code to enter the public platform for online repair