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:Can you use the precision pressure gauge of level 0.25, measuring range (0~10) and MPa to verify the general pressure gauge of level 1, measuring range (0~6) MPa? Why?: Yes, measurement pressure gauge inspection requirements, standard table accuracy requirements greater than or equal to 4 times

Q:What's the quota for the electric contact pressure meter?: National unified installation budget quota - tenth volumes (automatic control device and instrument installation engineering) - Chapter I process inspection instrument - two, pressure instrument, ---10-31 electric contact pressure gauge. It includes installation, wiring and debugging.This is a basic project, you can also add a cable head production, if there are instrument protection tube, explosion-proof flexible pipe, explosion-proof sealing joint, do not forget to apply other quotas.

Q:Is the boiler pressure gauge mandatory?: Is. Moreover, there are six months a year, some of which are examined once a year

Q:What does the belt stop of the pressure gauge mean?: [1] pins are commonly seen as pressure gauges with no negative pressure, and the pins are the zero of the pressure gauge. At this point, the pointer can not deflect below zero. This will reduce the chance of damage to the pressure gauge.[2] pressure gauge (English Name: pressure gauge) refers to the elastic element as the sensitive element, measuring and indicating higher than ambient pressure meter pressure gauge installation of Shanghai Wang ring 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.

Q:Measurement data, installed in the normal position, do not know whether to reverse installation, please professionals to help answer! Thank you Urgently!: Yes, the location does not affect the accuracy of the data

Q:What are the problems with the pressure meter?What are the good solutions to these problems in the pressure gauge?: Summarize the common faults and causes the pressure gauge, in the operation of only the exchange, because of different brands and types of pressure gauges were different. Personal recommendation if there is a problem of replacement or return to the supplier, procurement of new products, and send check calibration analysis as follows:A pressure gauge without indication. Reason: 1, pressure pipe on the cut off valve does not open; 2, pipe plug; 3, spring tube joint too much dirt siltation and plug; 4, spring tube cracking; 5, the center gear and fan tooth wear too much, and is not engaged.Two, pointer shaking large. Reasons: 1, the pressure of the medium to be tested; 2, pressure gauge installation position of vibration

Q:Fire hydrant pump, spray pump, starting pump, pressure gauge and spray pump, pressure switch is how to wiring?: The pressure gauge doesn't seem to be connected.It is a pressure switch switch, the 24V is introduced into the pressure switch, and then come out from the other end, connected to the 24V relay 13 feet, the negative 24V connected to the 24V relay 14 feet (13, 14, and then put on) a pair of normal relay contact is connected with the pump start line can be strong.

Q:How to control three-phase motor with electric contact pressure gauge: Electric contact pressure gauge contact capacity is about 1A, and the pressure gauge installation position basically has vibration phenomenon, unfavorable, so pull on contact, the first thing to consider is the pressure gauge and the measured pipe connected by a hose, pressure gauge and pressure gauge with fixed contacts to control the intermediate relay coil, often open contact of the intermediate relay to control the AC contactor coil, AC contactor main contact with motor.

Q:What's the function of the oil pressure gauge? Where does it fit?: For the vibration of the pump outlet, where the pressure meter for proof

Q:The injection molding machine doesn't have pressure, what's wrong with it and the pressure gauge doesn't reflect it?: Pump running properly, the system pressure is not, then focus on the pressure valve

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