Hey there! As a supplier of electronic tensile testers, I often get asked about how to check the load accuracy of these machines. It's a crucial aspect, especially if you're relying on accurate test results for quality control, research, or any other application. So, in this blog, I'm gonna walk you through the steps to check the load accuracy of an electronic tensile tester.
Why Load Accuracy Matters
First off, let's talk about why load accuracy is so important. An electronic tensile tester is used to measure the force required to break or deform a material. This data is used in a wide range of industries, from manufacturing to research. If the load accuracy of the tester is off, the test results will be inaccurate, which can lead to bad decisions. For example, if a manufacturer uses inaccurate test results to determine the strength of a product, it could lead to product failures, which can be costly and even dangerous.
Tools You'll Need
Before we start checking the load accuracy, you'll need a few tools. You'll need a calibrated load cell or a set of calibrated weights. A calibrated load cell is a device that measures force and is calibrated to a known standard. Calibrated weights are, well, weights that are calibrated to a known mass. You'll also need a data acquisition system or a computer to record the test results.
Step 1: Check the Machine's Calibration Certificate
The first step is to check the machine's calibration certificate. Every electronic tensile tester should come with a calibration certificate that shows the machine's accuracy at the time of calibration. This certificate will tell you the machine's accuracy within a certain range of loads. If the machine is out of calibration, you'll need to have it calibrated by a qualified technician before you can check the load accuracy.
Step 2: Set Up the Machine
Once you've checked the calibration certificate, it's time to set up the machine. Make sure the machine is properly installed and leveled. Check the machine's software and make sure it's up to date. You'll also need to set up the test parameters, such as the test speed, the test type (tensile, compression, etc.), and the load range.
Step 3: Install the Calibrated Load Cell or Weights
If you're using a calibrated load cell, install it in the machine's load frame. Make sure the load cell is properly aligned and secured. If you're using calibrated weights, hang them from the machine's crosshead or load frame. Make sure the weights are evenly distributed and that the machine can handle the total weight.
Step 4: Perform a Zero Check
Before you start the test, perform a zero check. This means setting the machine's load reading to zero with no load applied. This will ensure that the machine is reading accurately from the start.
Step 5: Perform the Test
Now it's time to perform the test. Start the machine and apply a load to the specimen or the calibrated load cell/weights. Record the load reading on the machine's display or the data acquisition system. Repeat the test at different load levels within the machine's specified range. Make sure to record the load readings at each level.
Step 6: Compare the Results
Once you've completed the test, compare the recorded load readings with the known values of the calibrated load cell or weights. If the readings are within the machine's specified accuracy range, then the machine is accurate. If the readings are outside the specified range, then the machine may need to be calibrated or repaired.
Step 7: Document the Results
It's important to document the test results. Keep a record of the load readings, the test parameters, and the date of the test. This documentation will be useful for future reference and for quality control purposes.
Using Our Electronic Tensile Testers
At our company, we offer a range of high-quality electronic tensile testers, including the SN-3E Universal Testing Machine, the SN-DE Universal Testing Machine, and the SN-1E Universal Testing Machine. These machines are designed to provide accurate and reliable test results. They come with advanced features such as easy-to-use software, high-resolution displays, and a wide range of load capacities.
Conclusion
Checking the load accuracy of an electronic tensile tester is an important part of ensuring the reliability of your test results. By following the steps outlined in this blog, you can easily check the load accuracy of your machine. If you have any questions or need further assistance, don't hesitate to contact us. We're here to help you get the most out of your electronic tensile tester.
If you're in the market for a new electronic tensile tester or need to upgrade your existing machine, we'd love to talk to you. Our team of experts can help you choose the right machine for your needs and budget. Contact us today to start the conversation and let's find the perfect solution for your testing requirements.
References
- ASTM E4 - Standard Practice for Force Verification of Testing Machines
- ISO 7500 - Metallic Materials - Verification of Static Uniaxial Testing Machines
