WDS Series Digital Display Type Electronic 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:What pressure gauges are used in a pressure vessel?: Normally, pressure vessels do not need to be fitted with pressure gauges.But if it really needs to be installed, it depends on how it is used. For example: instantaneous pressure may reach 0.4MPa, and the normal working pressure is 0.05MPa, then choose 0-0.6MPa pressure gauge on it. If there is no instantaneous pressure, use the 0-0.1MPa pressure gauge.

Q:Set up a factory. May I ask what equipment you need to build a pressure gauge factory?: As long as you buy accessories, you need very few equipment

Q:What are the requirements of the gas pressure test for the pressure gauge?: The maximum pressure shall not exceed the upper limit of the pressure gauge, preferably at the 2/3 position, and the measurement accuracy is relatively high. If the production needs to be calibrated by the technical measurement Institute, the validity shall be used within the period of validity. The watch list is better. The dial is larger. It looks clearer.

Q:What's in, Hg, VAC on the R134 air conditioner pressure gauge?: In.hg stands for inches in mercury, and cm.hg stands for centimeter hg. VAC - vacuum

Q:The working principle of the Bourdon tube pressure gauge: Bourdon tube pressure gauge is spring tube pressure gauge.Its working principle is that:The pressure gauge through the sensitive element in the table (Bourdon tube, bellows, bellows) of the elastic deformation, then the conversion mechanism of table movement will transfer to the pointer pressure distortion caused by pointer rotation to show pressure.

Q:What is the difference between 380V and 220V electric contact pressure gauge?: The difference between the 380V and 220V electric contact pressure gauges is that the rated voltage of the action coil is different. The rated voltage of the action coil of the 380V electric contact pressure meter is 380V, which can only be connected with the 380V voltage and is not connected to the 220V. 220V electric contact pressure meter action coil rated voltage is 220V, can only meet the 220V voltage, access to 380V will burn the coil.The rated voltage of the coil is 380V, the cross-sectional area of the conductor should be smaller, the coil number of coils should be more, and the operation current should be smaller. The rated voltage of the coil is 220V, the cross-sectional area of the conductor should be larger, the number of coils should be less, and the action current should be greater.

Q:What's the difference between a pressure gauge and a negative pressure meter?: A negative pressure meter is also a pressure gauge. It is only used to measure negative pressure. Negative pressure is relative to standard atmospheric pressure.

Q:What are the diaphragm materials for the diaphragm pressure gauge?: The biggest advantage of diaphragm pressure gauge is that it can select different diaphragm material according to different corrosion medium, so as to achieve the best corrosion resistance.At present, the diaphragm materials are commonly used tin bronze, SU316 stainless steel, titanium, tantalum, Monel, Hastelloy, PTFE etc..In the use of diaphragm pressure gauge, in addition to correctly select its structure form, the more important thing is to reasonably select the diaphragm diaphragm material. The so-called reasonable is to consider both its corrosion resistance, but also to consider the economy.For example, tantalum sheet and Hastelloy alloy have excellent corrosion resistance, but they are expensive and are only used in corrosive environments where other inexpensive materials are not suitable.

Q:Why should the pressure gauge be checked regularly?: The main interface to check whether there is debris or oil so as to avoid blocking the emphasis, safety factor

Q:For example, a 1.6 mpa. How do you measure it?!: Multimeter hit 2K (digital table), measuring remote table above three terminals in any two terminals: if it is 400 Ou mother, these two is high-end, low-end, and the rest that is the sliding end (middle end). Next, the access line, if the clock indicating pressure increases, while the display is declining, the high-end, low-end swap line.In general, three terminals, the bottom is the middle end, the middle is high-end, and the top is the low-end. Consistent with the electric contact pressure gauge.Have a try.

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