In the use of electronic universal testing machine, it also contains a large number of button keys, so what are the uses of these button keys?

1. Before using the tensile testing machine, check whether the connection of each part of the instrument is correct, and then turn on the power switch,.

2. Press the "displacement, descent" key to observe whether the lower tool is descending. If it is ascending, stop the machine immediately and reverse the phase.

3. According to the length of the "specimen", adjust the distance of the fixture with the "displacement, rising eight area false mouth, falling" button.

4. Install the two ends of a test piece in the fixture and fix it well.

5. Press the button of "stop and start CLR", the instrument will enter the status of "record and store", and the status indicator will be on.

6. Press the "displacement, descent" button, and the instrument will automatically enter the test procedure. When the tensile force of a specimen collected by the instrument is greater than 3N, the displacement recording starts to record automatically, and continues to record with the test machine. When the tensile force decreases 5N at the moment when the specimen is torn off, the tensile force and displacement are immediately recorded by the instrument and remain unchanged, and at the same time, the displacement stops.

8. Press the "function, save set" key, the instrument will record the data collected in this test and save it into the computer to make the instrument enter the next test.

9. Repeat 2-7 items, every 5 times as a group. When the fifth test is completed, after pressing the "function, save set" key, the value displayed by the computer is the average value of the test group this time.

10. When the second and third groups of experiments are needed, the "power supply, reset" key must be pressed to reset the instrument before the test can be continued.

In addition, the professional operator of the electronic universal testing machine told us that if the value is not correct in the test, press the "stop, start CLR" key directly, then the test data will not be recorded, and then do the test after finding out the reason. The average value of the test must be 5 times in a row before it can be obtained.