Zero adjustment method and precautions for use of the screen display hydraulic universal testing machine

by:Sinowon     2021-07-17
Zero adjustment method and precautions for use of the screen display hydraulic universal testing machine





The screen display hydraulic universal testing machine is a hydraulic material testing machine that can perform various tests such as tension, compression, and bending. The hydraulic universal testing machine is used for tensile, compression, bending and shear tests of various metal and non-metal materials, as well as special tests of some products. Do you know about the hydraulic universal testing machine? Let’s talk about the hydraulic universal testing machine. Let's take a look at the zero adjustment method and precautions of the testing machine.


Zero adjustment method:


1. Open 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 clear the software in each gear separately


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 at a standstill.


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


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


Mechanical equipment is essentially the same. Only by mastering the correct methods for the coordinated operation of different components can the entire experimental process be smoother and the experimental data more accurate.


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 impact


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


The above is the introduction of the zero adjustment method and precautions of the on-screen hydraulic universal testing machine. I hope it can be helpful to you.



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