Electronic universal testing machine is the product of the combination of modern electronic technology and mechanical transmission technology. It is composed of measuring system, driving system, control system, computer and other structures. The large-scale precision testing instrument, which gives full play to the respective advantages of Electromechanical, can carry out tensile, compression, bending and other performance tests on various materials, and has the characteristics of wide measurement range, high precision and fast response. Reliable and efficient. The connection of the hydraulic system is an indispensable part of the use of the electronic universal testing machine. Let's introduce the connection and maintenance precautions of the hydraulic system of the electronic universal testing machine. The connection mode is as follows:

1. First remove the binding materials at each part of the hydraulic universal tensile testing machine, and clean the inside of the oil pipe with clean kerosene, especially the connecting thread of each oil pipe. Check whether the gasket at the joint is complete. If it is damaged, install it with a new gasket attached to the testing machine to prevent oil leakage under high pressure.

2. The staff shall use a suitable wrench to connect each oil pipe. If it is seamless copper pipe, it shall be connected to the host, and the spacing shall be adjusted by the movement of the console to connect the control console end.

3. Open the iron door of the hydraulic control box, you can see the screen oil filter, which will be injected into the oil tank during oil filling. Hydraulic oil is usually used for the testing machine. Hydraulic oil with high viscosity should be used in summer and low temperature in winter. It is recommended to use hydraulic oil with low viscosity.

4. The electronic universal test machine can not work normally if the amount of oil is too small. Too much oil will cause hydraulic oil leakage from the working cylinder port. Therefore, pay attention to the oil level when refueling.

Precautions for maintenance of electronic universal testing machine

1. When repairing fine instruments and meters, if small parts are accidentally bounced off, you should first judge that they can fly to the right place. Do not look east or west. Magnet scanning and visual field scanning can be used for searching. When using logic pen and oscilloscope to detect signals, pay attention not to make the probe contact the two measuring pins, because the essence of this condition is to form a short circuit when powered on. In order to better understand the parameters and forms of the key points in the use of the universal tensile testing machine, the software developer specially designed a set of software, which can correctly carry out process adjustment and production control.

2. Please be careful not to plug and unplug all kinds of control boards and plugs.

3. When inspecting the internal circuit of the instrument, if the contact of the device element and the circuit board are coated with insulating varnish, the common hand sewing needle can be welded on the probe of the multimeter when measuring the parameters of each point, so as to pierce the paint layer and measure each point directly without stripping the paint layer in a large area.

4. When inspecting the instrument in wet conditions, it is necessary to use a multimeter to measure whether each point of the printed circuit is sluggish, because the primary problem in this condition is copper foil corrosion. Because under the power on condition, the plug-in and pull-out joint system board will have a strong induced electromotive force. At this time, the immediate return voltage is very high, which can easily damage the responsive control board and plug.

5. The data can be queried in multiple directions, which can make managers understand the transformation trend of quality control.