• WDW Series Computer Control Type Electronic Universal Testing Machine System 1
WDW Series Computer Control Type Electronic Universal Testing Machine

WDW Series Computer Control Type Electronic Universal Testing Machine

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
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Supply Capability:
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Main functions:


 WDW series are suitable for tensile, compression, bending ,cutting, shearing and tearing test of rubber, plastic, electrical wire and cable, composite, plastic profiled bar, waterproof roll, etc. They may add test methods or rules according to customers’requirement .They are essential testing instrument for quality testing section, university and college, research institution and industrial and mining enterprise.


Product features:


1,This machine equips alternating servo motor for driving crosshead and imported photoelectric encoder for displacement measure.

2,This machine is accompany with the digital multi-channel closed loop control system which applicates the latest monitoring and control systems with lots of advanced professional and technical development. ,

3,Control software can automatically finger out routine data, such as tensile  modulus of elasticity, extend rate after rupture, non-proportional extend strength RP0.2, etc.

4,It can realize three closed loops control and real time display many testing curves of force-displacement, force-time, and stress-strain. These curves automatically switch. Testing process control and data processing conform to the requirements of GB.  

5,This machine has the following performances: Auto zero, auto gear shifting or no subsection, auto indication, auto save, unicontrol or multistep programmed control, auto stop, auto analysis or assistant manual analysis, batch test, testing result statistic, curve select and over load protection. And the machine is beautiful, multifunctional, and operates easily and reliably.

Q: Is the precision gauge out of scope?
Not always。 Beyond possible, not damaged. Excess may cause errors in the pressure gauge.
Q: How is the pressure gauge ABC divided?
1 when measuring the steady pressure, the normal operating pressure shall be 1/3 2/3 of the upper limit of the measuring range of the instrument,2 when measuring the fluctuating pressure (such as the pressure at the outlet of pumps, compressors and fans), the normal operating pressure shall be1/3~1/2 of upper limit of instrument measuring rangeThe normal operating pressure shall not exceed the upper limit of the instrument measuring range when the 3 sides are high and the pressure is greater than 4MPaValue of 1/2
Q: What is a back mounted pressure gauge and why is it called back loading?!
It should be the axial pressure gauge
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 working principle of the spring tube type pressure gauge is spring tube; under the action of pressure, the free end displacement, the displacement of the rod drives the transmission amplification mechanism, the pointer deflection, and indicate the pressure value on the scale.Bourdon tube pressure gauge is mainly composed of a threaded joint holder, spring tube, rod, screw, gear sector, small gear, hairspring, pointer, upper and lower clamping plate, dial, case, shell etc..The function of each component in the drive amplifier mechanism:(L) pull rod - transfer the displacement of the free end of the spring tube to the sector gear;(2) the sector gear converts the line displacement to angular displacement and then passes it to the pinion and has an amplification effect;(3) the pinion drives the coaxial pointer to rotate, indicating the measured pressure on the dial;(4) - the gossamer fan gear and small gear tooth profile keep one-way contact clearance contact two gear, in order to reduce the return difference;(5) adjusting the screw - changing the position of the adjusting screw can change the length of the short arm of the sector gear, so as to change the drive ratio;(6) the upper and lower clamping plates fix the components together to form a set of transmission mechanisms.The drive mechanism, also known as the movement, is the heart of the pressure gauge. Its function is to enlarge the displacement of the free end of the spring tube so as to achieve the purpose of easy reading.
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 is the range of use of a pressure gauge? Why is it at its measuring range of 1/3-2/3?
1, it is the characteristic of elastic element, at 1/3-2/3, the linear and accuracy of elastic element is best;2. To ensure that the maximum pressure is less than the overload pressure in the range of 2/3, for the sake of safety and instrument life;
Q: How to connect the three terminal points of the remote pressure gauge?
The three terminals of the remote pressure gauge are arranged like this, from top to bottom: 0 bit, 5V bit, middle position (that is, pointer moving contact). The 0 bit provides the pressure feedback signal with the center.
Q: Why isn't the pressure meter back to zero?
If the new watch has air in it, it should be let out, and the specific reference manual. The old watch says the watch is out of order.
Q: What's the quota for the electric contact pressure meter?
Ordinary is OK, electric contact can not load much current
Q: The role of a pressure gauge
The action is used to measure and indicate the magnitude of the pressure within the pressure product. Pressure products, if there is no pressure gauge, or pressure gauge fails, the pressure product pressure can not be expressed, thereby directly endangering safety. The pressure product is equipped with a sensitive and accurate pressure gauge, and the operator can correctly operate the pressure product with the pressure gauge to ensure safe and economical operation.The pressure gauge can accurately indicate the pressure of the steam in the pressure product. The operator can adjust the heating degree of the product according to the indicated value of the pressure gauge to ensure the safety of the gas supply and the safety of the pressure product.

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