How to check the ball valve pressure tester correctly?
The electronic tensile testing machine has been used for a long time, and it is normal that the electronic tensile testing machine or force value that causes environmental test speed is allowed due to improper use; However, some companies do not know how to check and correct, which brings inconvenience to the work. The following is a brief introduction to the electronic tensile testing machine, a simple and intuitive test method. 1. Strength test of ball valve pressure tester: open the interface after calibration by the computer program of the ball valve pressure tester. According to the start of the test, use the computer to display the power value, record the standard weight of the fixture hanging, and calculate the difference between the standard weight and the fixture hanging, and the error should not exceed ± 0.5%. 2。 Speed test of ball valve pressure tester: first record the initial position of the cross arm of the tester and select the speed value in the control panel (use a standard ruler to measure the arm travel). b. The starting station and the electronic stopwatch use the time Z minute, the stopwatch arrival time and the stop button press. According to the stopwatch time, the recorded value is the travel speed of the cross arm per minute (mm/min). Observe the difference between the cross arm travel value and the straightedge, and calculate the cross arm travel error as. Do not exceed 1%. Correction method for force value of ball valve pressure tester:
After entering the computer program, open the interface for correction. According to the start of the test, gently lift the standard on the fixture, use the computer to record and display the power value, and calculate the difference with the standard weight. The error should not exceed ± 1%. Correction of force value of ball valve pressure tester:
After entering the computer program, open the interface for correction. According to the start of the test, gently lift the standard on the fixture, use the computer to record and display the power value, and calculate the difference with the standard weight. The error should not exceed ± 1%. Speed correction of ball valve pressure tester:
The initial position of a recorder cross arm, select the speed value in the control panel (use a standard ruler to measure arm travel). One minute entry station and electronic stopwatch start timing, arrival time, press the stop button of the machine, according to the stopwatch time, the recorded value is the cross arm stroke rate per minute (mm/min), observe the difference between the crossarm travel value and the ruler, and calculate the difference between the crossarm error should not exceed ± 1%.