PWS Series Electric-hydraulic Servo Dynamic& Static Universal Testing Machine

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Ⅰ、Main functions
WDS series are suitable for tensile, compression, bending,cutting shearing and tearing test of rubber peeling and tearing plastic, electrical wire and cable, composite, profiled bar, waterproof roll, etc. They are essential testing instruments for quality testing section, university and college, research institution and industrial and mining enterprise.
Ⅱ、Product features
This machine equips alternating servo motor for driving crossbeam and imported photoelectric encoder for displacement measure. The controller adopts flush type monolithic computer structure and is equipped multitask operating system and built-in powerful test control software, which includes the test system with measuring, controlling, calculating and saving functions. This machine has the following performances: Automatically calculating stress, elongation rate, tensile strength and modulus of elasticity；automatically preserving all of 16 groups testing data；automatically recording the value of extremal vertex, breakpoint, appointed value of force and elongation；testing result can be scanned by pages and printed；the third class purview management；real-time electronic clock, and automatically recording the testing date and time.
Ⅲ、Technical Specification:

Type parameters	WDS-50
Measuring range of force (kn)	1-50
Accuracy of testing force	±1% of indicated value
Resolution of crosshead displacement Measurement	0.01 mm
Speed range of crossbeam	0.1 mm/min～500 mm/min，step less speed regulation and arbitrary setting
Effective testing space (mm)	700
Power supply	380V±10%，50Hz
Working environment	10℃-30℃,
Main configuration	Imported servo motor and speed adjustment system, precision photoelectric encoder.
Overall dimension of host machine (mm)	740×500×1680
Weight (kg)	450

Q:The composition of the pressure gauge?: The pressure gauge mainly has following parts and components: joint, spring tube, seal piece, movement, connecting rod, dial, pointer, lining ring, watchcase, watch glass, cover ring. The key components are joint, spring tube and core.

Q:What pressure gauges are used in a pressure vessel?: Pressure gauges for 0-0.1Mpa range for normal pressure vessels. If the pressure is small, you can use the Kpa table.The selection of pressure gauges has the following requirements:(1) the pressure gauge selected must be adapted to the medium in the pressure vessel. Because some mediums are corrosive to the material used in the pressure gauge, it should be noted that the material used in the pressure gauge cannot be physically and chemically reacted with the medium in the pressure vessel installed.(2) the accuracy of pressure gauges used in low pressure vessels shall not be lower than 2.5; the accuracy of pressure gauges used in medium and high pressure vessels shall not be lower than 1.5.(3) the limit value of the pressure dial scale should be 1.5-3.0 times of the highest working pressure, and the best choice is 2 times. Dial diameter should not be small, dry 100 mm.

Q:410 how about the pressure of the pressure gauge?: R-410A temperature see the red mark of the inner ring, the corresponding pressure is the two value of the outer ring, the outer ring is psi pounds, and the second circle is bar.- 1bar=1kgf/cm1psi=6.9kPa (1MPa=145psi)- 1MPa=10kgf/cm1MPa=1000kPaThe pressure corresponds to the temperature chamber. The temperature is known when the pressure is known and can be checked.

Q:How to choose a pressure gauge?: The first is selected according to the type of environmental characteristics, such as whether the need of explosion-proof, and then select the range, the general scale selection principle is that the pointer under normal pressure, shown in the 2/3 position is appropriate, margin; according to the actual demand, choose the suitable range of precision; the interface is needless to say. Good luck！

Q:How do you use this? How about two pointers? Don't use that kind of book. It's just as the saying goes, "take it step by step, how to use it. Thank you."!!!: Blue red yellow high, connected with a low voltage, connected with vacuum pump, blue red switch full open, vacuum pump work for 10 minutes, then the blue red switch closed, wait 10 minutes, see the table pointer has no change, no change can add refrigerant, the refrigerant pipe connecting the first yellow bottle. Che Zifa, the cold medium, yellow head spin open air open blue switch, will be added, such as pointer does not move, turn off the blue switch, air conditioning, open blue switch, with a good bottle, then turn off the blue switch, change the refrigerant, then how much should be.! The red tube switch is always closed! Remember!

Q:What are the types of pressure gauges? What is the principle of each? Who has other information about industrial hardware? Give it to me -- thank you: The oil pressure gauge can damp the shock absorption and avoid the interference of the pointer.

Q:I am doing water treatment works, water pump is connected with the back of my mechanical filter, know the maximum pressure pump working for 2.5MPa, so I want to be in place to install a water pump outlet pressure gauge, pressure gauge pressure range is how much?: I'm a pressure gauge. Let me tell you. I hope I can help you

Q:What are the precision grades of precision pressure gauges in our country?: According to the JJG49-1999 spring tube precision pressure gauge and vacuum meter verification regulation, the accuracy degree of the pointer precision pressure gauge is:0.6, 0.4, 0.25, 0.1, 0.06

Q:Cutting acetylene bottles on how there are 2 pressure gauges, which is an adjustable, adjustable number, and oxygen. Thank you!: There are two pressure gauges on the acetylene meter. One is a high pressure meter that measures the pressure in the bottle (i. e. the amount of acetylene in the bottle). Another piece of table is a low table, can be adjusted, which is cutting the required pressure, the pressure is related to the thickness of the plate according to the number ofAn oxygen meter is the same as an acetylene meter

Q:First, the water pump remote pressure gauge in the pipe without water, whether the pointer should refer to 0Second, when the inverter is not bad and does not work, whether the table of sliding resistance is bad, so that the frequency converter can not be induced without action. Thank you for your advice.: The pressure gauge (English Name: pressure gauge) refers to the elastic element as the sensitive element, measuring and indicating higher than ambient pressure meter is widely used, it almost all the industrial processes and scientific research. In the heat pipe network, oil and gas transmission, water supply system, vehicle repair and maintenance shop, and other fields can be seen everywhere. Especially in the control and measurement process, because the elastic sensitive element of mechanical pressure gauge has the characteristics of high mechanical strength and convenient production, the mechanical pressure gauge is widely used.

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