How to adjust the zero of the hydraulic universal testing machine and matters needing attention

How to adjust the zero of the hydraulic universal testing machine and matters needing attention

The hydraulic universal testing machine needs to be adjusted to zero in order to get accurate test results, then the test method is as follows:





Test method:


1. Turn on the test equipment, computer, and control software;


2. For the hydraulic universal testing machine, select the appropriate range according to the sample, adjust the oil delivery valve to raise the cylinder piston, and repeat it several times. When the piston is rising and not under pressure, observe the computer's test at this time Whether the force value is zero, if it is not zero, click the hardware adjustment button to adjust the zero point;


3. When the zero point is too large, adjust the zero point first, and then reset the software to zero in each gear;


4. When the cylinder is not raised, the test force shows a negative value, which is a normal phenomenon, please do not adjust the zero point;


5. The adjustment of the zero point should be carried out after the extensometer is clamped on the sample and the test piston is in a static state;


6. Under normal circumstances, the speed regulator has adjusted the zero point of the sensor, and each time it is started, the system will automatically calibrate the start zero point, without the need for the user to adjust it;


7. The user can use the hardware zero adjustment button to adjust the hardware zero point, and the system will automatically record the new zero point adjustment value;


8. The zero point is not adjusted for non-step measurement.


Matters needing attention:


1. Please close the oil delivery valve in time. The oil delivery valve should be closed in time after shutting down before starting the machine. Loading, unloading and oil return must be carried out slowly to prevent shock;


2. After the sample of the hydraulic universal testing machine is tightened, the position of the clamp cannot be adjusted;


3. During use, the load of attention value and the movement of the beam should not exceed the maximum range;


4. After starting the machine, if there is any abnormality, you can press the emergency stop switch to turn off the testing machine.


The above is how the hydraulic universal testing machine zero adjustment and precautions shared by the editor, I hope it can help everyone!



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