Electronic universal material testing machine verification operation process - Database & Sql Blog Articles

Test - lowercase jpg

Kaixin micro test

Test probe P100-M3

First, electronic

Universal material testing machine

, the test of the test force.
1. Connect the power supply of the electronic universal material testing machine. After the electronic universal material testing machine works normally, place the dial gauge standard dynamometer (hereinafter referred to as the standard dynamometer) on the workbench to adjust the electronic universal material testing machine. The zero point and balance of the pointer must meet the requirements of paragraph 1.5 of the JJG 139-1999 "Tension, Pressure and Universal Testing Machine" verification procedures.
2. Pre-compression standard dynamometer. When the test force is added to the 1/3 range, check whether the table positioning guide wheel or the positioning column can rotate or have clearance. Otherwise, the standard dynamometer should be adjusted. After the requirements are met, the pressure is pre-stressed three times to the maximum test force of the stage. . After replacing the standard dynamometer, you need to re-check by 1 and 2.
3. The verification range of the electronic universal material testing machine starts from 20% of the maximum test force before each stage of the range, and the verification point must not be less than 5 points. It should be selected as uniformly as possible, generally with 20%, 40%, 60%, 80%, 100% corresponds to the 0.5-level test machine recommended to rotate the dynamometer to 90 ° or 180 ° position in the third measurement.
Second, the test force test value verification.
1. When applying the test value, the test force should be stable. It should be applied slowly before being added to the test point to facilitate accurate reading.
2. The relative error of the indication value and the verification state of the relative value of the repeatability of the indication value must be consistent with the state of use.
3. Verification of the relative error of the indication value and the return stroke: continuously increase and decrease the force measurement on the lowest and highest range of the test machine, and the obtained result shall comply with the regulations in Table 3.
4, when the electronic universal material

Testing Machine

When the self-weight of the test instrument cannot be balanced, the self-repetition can be used as a starting point.
3. The data processing of the verification results shall be carried out in accordance with the provisions of 5.1 to 5.3 in Articles 3 and 7 of the Regulations.
4. After the verification work is completed, the verification and verification personnel shall carefully check the verification and test results records. After verification and verification, they shall be signed separately as the basis for issuing the verification certificate and test report and for the purpose of filing for future reference.
5. After the verification work is finished, turn off the power, remove the standard dynamometer, dial indicator, and attachment certificate, and put them into the box.