WAW Series Computer Control Electro-hydraulic Servo Universal Testing Machine

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Main functions
This series machines are widely used for tension, compression, bending and shearing test of metal materials and also used for compression and bending test of nonmetal materials, such as cement, concrete and so on. Equipped with simple auxiliaries, it can be used for mechanical property testing of fastener, wire rope and components. They are perfect testing instrument project quality testing section, universities and colleges, research institution and industrial and mining enterprise.
Product features
1>Control card adopts advanced neural adaptive PID control algorithm, and truly realizes three closed-loop digital control. 2. Data acquisition system consists of or channels high precision A/D conversion channel. The maximum resolution of 1/200000. There is no subsection of all process,meanwhile,it can have 4 subsections according to customers’requirement.
3> Select BB, AD and Xilinx original brand integrated devices and digital design.
4> Built-in large scale CPLD programmable device with high-speed computation capability and real-time processing digital signal.
5> Integrated dual roads precision instrument programmable amplifier, digital zero and automatic smooth shifting.
6.>Select high quality imported servo valve block, all control signals photoelectric isolation, 24V DC and safe and reliable. 7. Max Test software runs on Windows98/2000/XP operating system; equipped with a special Windows system for Test Chinese intelligence package, the testing machine can process test result and then output test report and the characteristic curve design.
8.>Real-time record and dynamic display test curve.
9.>Provide programmable automatic testing procedures and users can edit their own test steps according to the requirements of test.
10.>Adopts human-computer interaction to analyze and count performance indicators of materials. It has both automatic and manual modes.
11>Adopts standard database to manage test data and support batch test.
12>Customer can add test methods and rules for his needs

Q:The greater the accuracy of a pressure gauge, the higher or lower the accuracy of the measurement, or the difference between the two: The greater the accuracy of the pressure gauge, the lower the accuracy of the measurementThe degree of accuracy is the smallest unit of value that can be measured. The greater the value, the lower the accuracy.

Q:What do you think of the air conditioner liquid pressure gauge? How much pressure does it add?: Pressure gauge installed in the liquid inlet and gas tank in the middle, the specific pressure forgotten, and did not go for a long time, it seems to be 2.8, I can not remember

Q:What are the procedures for checking the pressure gauge in that department?.: Quality Supervision Bureau

Q:The 3 lines of the remote pressure gauge are connected to an external potentiometer of the frequency converter. What parameters can be adopted to adjust the pressure? Thank you: Frequency converter to "advanced parameters", in the PID function to set the corresponding parameters, such as: set the channel, feedback channel, control structure, pressure meter range, upper and lower limit values, etc.. With keyboard control or external terminal control operation and stop, panel potentiometer adjust the pressure

Q:What are the differences between axial pressure gauges and radial pressure gauges?: Difference：The radial pressure gauge, the axial pressure gauge difference mainly looks at the pressure gauge thread joint position, the thread joint under the dial plate is radial, with the dial plate vertical is the axial.Brief introduction:The pressure gauge is axial, that is, the pressure gauge, the threaded joint and the dial are vertical. In the control and measurement process, due to the mechanical axial pressure gauge elastic sensitive element has the characteristics of high mechanical strength and convenient production, which has been more and more widely used mechanical axial pressure gauge.The radial pressure gauge is very easy to install, particularly suitable for installation in the valve, widely used in all kinds of water system, chemical industry, petroleum industry, shell: stainless steel, surface: glass, pressure gauge: tube spring element.

Q:Fix a false SUPOR electric pressure cooker E4 fault, after inspection, the pressure switch is not in good contact. Replacement repair, but do not know how to adjust, worry about not repair to the original machine state will explode! Ask the heroes what coup adjustment!!!: Debugging method: remove the plastic bottom cover of electric pressure cooker, the pressure detecting switch of electric pressure cooker replaced, with screwdriver to adjust when the switch is closed completely, just when the counter clockwise N circle, the amount of water in the pot (about 500ML), installed inside the pot and tighten the lid, small iron the exhaust port also should be installed. The electric heating to boil water for a while, see the smoke vapor from the exhaust hole, and for a while, a lot of smoke and steam, issued a hissing sound, then to unplug the power line from the bottom of the pot, carefully put the pressure detecting switch clockwise slowly adjust, immediately stop when the switch is off. Then, on the inner pot of electric heating to boiling water, I saw a slight water vapor vent out, over a period of time to the state of insulation. (picked out on the Internet. I wonder if it's testing.)

Q:What does the pressure gauge "radial back" and "axial front" mean? What's the side of the ordinary pressure gauge?: The radial pressure interface is parallel to the dial of the pressure gauge, i.e., the pressure port is below the dial,The axial pressure interface is parallel to the center axis of the dial of the pressure gauge, i.e., the pressure port is behind the dial,A pressure gauge is usually a flat cylinder,"With the front" means the mounting edge is in the front. After installation, the pressure surface is close to the instrument panel and embedded."Behind" refers to the mounting edge at the back. After installation, the pressure surface protrudes from the thickness of a gauge on the instrument panel.

Q:2.5mpq and 6mpq models of pressure gauges are used, please teach master: Is there a mistake in your pressure unit? It should be Mpa. The pressure gauge is usually a direct thread connection, and then the pressure of the system is detected. I don't know which way you want it

Q:How to determine the accuracy level of a pressure gauge?: The accuracy levels of the precision pressure gauges are 0.1, 0.16, 0.25 and 0.4 respectively. The accuracy levels of the general pressure gauges are 1, 1.6, 2.5 and 4 respectively. The method of selecting the accuracy level of the pressure gauge shall be based on the requirements of the production process, economic, practical and testing methods, and the accuracy grade shall be determined according to the allowable error of the minimum pressure measured. Precision class calculation method: the actual error value / actual range * 100% out of the figures, remove the number, get the number close to the above numerical value, the accuracy level is how much

Q:What are the thread connections of the pressure gauges?: There are three sizes of M10*1, M14*1.5 and M20*1.5 specifications

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