The Bentsen roughness tester (BMT surface roughness tester) is a device that accurately measures the surface roughness of materials and is widely used in fields such as mechanical manufacturing, automotive industry, and electronics industry. It provides data on surface roughness by measuring the microscopic irregularities of the surface, which is used to evaluate the quality, wear resistance, smoothness, and other properties of the product.
Operating procedures for Bentsen roughness tester
1、 Preparation work
Check equipment:
Ensure that the power supply of the tester is normal, the appearance of the instrument is not damaged, and the sensor is not contaminated.
Check if the display screen and operating interface of the instrument are working properly.
Ensure that the test probe is not damaged or bumped, and check if the probe is clean.
Calibration instrument:
Before use, the instrument must be calibrated. Usually, instruments are equipped with standard calibration blocks for setting reference values.
During calibration, place the standard roughness block on the measuring platform of the instrument and start the instrument for automatic calibration to ensure accurate measurement results.
Select measurement parameters:
According to the measurement requirements, set appropriate measurement parameters, such as:
Measurement range (Ra, Rz, Rt, etc.)
measure length
scanning speed
Different standards and requirements may require the selection of different parameter settings.
Clean test samples:
Ensure that the surface of the test sample is free of dust, oil stains, or other impurities to avoid these substances affecting the measurement results.
You can use a cleaning cloth or air blow to clean the surface of the sample.
2、 Measurement operation
Place the sample:
Place the test sample on the measuring platform of the tester. Ensure that the sample surface is flat and fixed. Unstable parts can be fixed using sample fixtures.
Select testing mode:
Select the appropriate testing mode based on the size and shape of the sample. It is generally divided into manual and automatic modes.
Manual mode: requires the operator to manually adjust the probe position, suitable for irregular or small samples.
Automatic mode: The instrument automatically adjusts the probe for scanning, suitable for standard and regular samples.
Start testing:
Start the instrument for testing, and the tester will automatically scan the surface of the sample to measure its micro roughness. The sensor moves along the surface of the sample and records surface irregularities in real-time.
During the measurement process, avoid vibration or interference to avoid affecting the results.
Read result:
After the measurement is completed, the instrument will display the surface roughness parameters, such as Ra (arithmetic mean roughness), Rz (ten point height), etc. Select appropriate roughness indicators for analysis based on specific requirements.
If necessary, the data can be exported or printed out for further analysis and recording.
3、 Data Processing and Analysis
data analysis
Conduct product quality analysis based on the measured roughness values (Ra, Rz, Rt, etc.). The lower the roughness value, the smoother the surface, usually indicating better machining accuracy.
Compare the test values with the design or process requirements to evaluate whether the surface quality of the product meets the standards.
Result recording and reporting:
Record the test results in the measurement report, which should include the following content:
Basic information of the test sample (such as model, number, size, etc.)
Measurement results (roughness parameter)
Measurement conditions (such as measurement length, scanning speed, etc.)
Instrument calibration status and usage date
Generate electronic or paper reports as needed for reference by relevant departments or clients.
4、 Post operation and maintenance
Cleaning and maintenance:
After each use, the sensors, probes, and work platform of the instrument should be cleaned to keep the equipment clean.
Regularly check the battery level of the instrument to ensure that the equipment is always in good working condition.
Regular calibration and testing:
Measuring instruments need to be calibrated regularly to ensure measurement accuracy. It is recommended to regularly calibrate or send the instrument to a professional testing institution for maintenance according to the requirements of the instrument manual.
Record the operation status of the instrument:
Establish an instrument usage log to record the time, personnel, and testing conditions of each use, in order to track the operating status of the instrument and identify potential issues.
5、 Safety precautions
Operating environment:
When using the Bentsen roughness tester, ensure that the operating environment is clean and tidy to avoid debris entering the instrument and affecting measurement accuracy.
Avoid excessive vibration or impact during the measurement process.
Power management:
Ensure that the power supply is functioning properly during use to avoid low battery levels or unstable power supply.
When not in use, turn off the instrument to extend its lifespan.
Prevent misoperation:
During the measurement process, ensure that the operator is familiar with the operating procedures of the instrument to avoid equipment damage or inaccurate measurements caused by misoperation.
summary
The Bentsen roughness tester can efficiently and accurately measure the surface roughness of materials through precise probe scanning technology. The correct operating procedures include equipment preparation, setting test parameters, reading and analyzing data, and post maintenance of equipment. Strictly following the operating procedures can ensure the accuracy of measurement results and the long-term stable operation of the instrument.