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WD-E Electron universal testing machine(Three closed-loops)

WD-E Electron universal testing machine(Three closed-loops)
ProductNo: 008
ProductModel: WD-E
Description：

Applications:petrochemical industry, aviation and aerospace industries, wires and cables etc.
Maximum test force (N): 1000-1000k


  • Description
  • Technical Specifications
  • Product Literature
Testers of this series adopt a fully digitalized GTM-221Pro series computer control system. They use high-performance ADC technology to realize features such as high precision, wide measurement range, stepless configuration, and constant resolution ratios across the entire measurement range. The independent “amplification – A converter” circuit greatly reduces crosstalk incurred in case of weak signals, thereby increasing stability. These models divide the entire range into 500000 equal parts. In actual measurement, they are superior to testers employing a 6-gear amplification configuration. As to displacement measurement, a high-speed circuit is used to realize four-quadrant data collection via photoelectric encoding technology, which completely eliminates the adverse influence that may occur at a low speed due to dithering or direction change and as a result increases the measurement accuracy by 4 times. They are equipped with an EASYDO mobile control box, 5 function buttons, which correspond to going up, going down, stopping, operating and zeroing respectively, and lamps indicating the up or down movement of the test bench, of which all serve to facilitate users’ operation and use. A LCD display unit can be installed optionally on the standard model to display test parameters and results, in which case independent operation without the master computer’s involvement is possible.
The testers of this series employ a user software package, which adopts a modular multilevel structure suitable for large-scale software and incorporates such as MS ACCESS database , SQL technology,etc. Furthermore, the testers offer unique voice prompts informing the user of operation events, support multiple force sensors, multiple deformation sensors, running state control, and input of test parameters, and can adequately satisfy the requirements for various test methods adopted by the tester user (such as GB, ISO, DIN, ASTMD, JISK, etc.) when testing different materials or finished products. They can realize automatic force value calibration and automatic deformation calibration; can perform continuous testing by setting the test conditions for a batch of test samples only once; can modify parameter computation and customize test reports conveniently; can automatically calculate parameters such as the maximum test force, yield strength, upper and lower yield points, tensile and compression strengths, tensile (compression) stresses, elongation (compression) rates, elastic modulus, bending deflection, etc.; can display test curves in a real-time manner and store and analyze measured data; can store and retrieve test results freely; enable selection of various types of curve for reanalysis; can compare test curves in the same group by distinguishing the color of each curve upon superposition; allow the user to use the mouse to select parameter points on curves, select parameter points on curves, select a curve display mode, zoom in on local sections of curves, print curves, and generate a simulated WYSIWYG report display on the screen before printing a report; and, possess automatic rupture judgment and automatic return functions, as well as multiple protective modes. All these features help guarantee safe and reliable running of tests.
The model WD-E precision electronic universal tester can not only realize all the functionality, as mentioned above for the standard model, but it also enables closed-loop control of force value, deformation and position (abbreviated as three closed loops) and smooth switchovers between the three closed loops. By means of script-enabled control, it can even realize control of cyclic (fatigue) curves and any other curves, enabling the tester to control very complex tests. Additionally, this model can adopt a Maxtest hardware controller made in China so as to perform high-frequency sampling at a frequency of 250 times per second, which makes data collected more accurate and control imposed more precise. Up to 8 collecting channels are available for use, and independent control or online control when used in combination with a computer can be realized on this model.
 
 

Major Technical Specifications

Model and specifications

WD-1000
D/E

WD-2500
D/E

WD-5000
D/E

WD-10K
D/E

WD-20K
D/E

WD-30K
D/E

WD-50K
D/E

WD-100K
D/E

Maximum test force (N)

1000

2500

5000

10K

20K

30K

50K

100K

Effective measurement range (%)

D:1~100/ E:0.4~100

Accuracy of force readings (%)

D:≤±1.0; E:≤±1.0/≤±0.5

Resolution in measuring force

±1/500000

Test speed range (mm/min)

0.001-500

Accuracy of speed readings (%)

≤±0.50

Effective test span (mm)

340

410

550

Maximum crossbeam displacement (mm)

850

950

Accuracy of displacement readings (%)

≤±1.0

Deformation measurement (mm)

Large deformation: 0-800

Electronic extensometer：0-25，Gauge：50

Accuracy of deformation readings (%)

≤±0.5

Standard accessories (mm)

Brand-name computer with a mainstream configuration (including software and printer)

Brand-name computer with a mainstream configuration (including software and printer), φ100 spherical pressure-proof plate, electronic extensometer

φ60 pressure-proof plate

Bending head – folding support

Bending head – folding support

Scissor-shaped chuck

Textile chuck

Wedge-shaped chuck

Power   supply     (AC)

220V/400VA

220V/750VA

220V/1kVA

380V/2kVA

External dimensions: length × width × height (mm)

645×360×1500

792×515×1825

980×640×2050

Approximate weight (kg)

250

350

850
 
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