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High Elongation Extensometers – Model 3800

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Code: #29363

Supplier: TE Forcespeed Corporation

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  • The main body of this unique extensometer remains stationary during testing, held in position by the adjustable base included. Only the very light, small traveling heads move as the sample elongates during a test. These a sample with small spring clips. Each head pulls a cord out from the extensometer as the head moves. These models use high precision, low friction potentiometers, and, as a result, have a wide range of factory outputs. The extensometer is driven by an excitation voltage and has output proportional to the input. They with high level outputs (approximately 2-8 VDC) or ones that mimic strain gaged devices (2-4 mV/V). When strain gaged extensometers, the Model 3800 can be used with virtually any signal conditioning electronics strain gaged sensors. The potentiometers employ a hybrid wire wound around conductive plastic, which prove long term stability. The output from the extensometer is readily interfaced with most existing test controllers directly input to data acquisition systems and chart recorders.
    • May be left on through specimen failure. The main body is stationary with only the lightweight traveling heads movin
    • Includes high quality foam lined case.
    • Comes with an adjustable magnetic base for easy mounting.
    • Large measuring range to 500 mm (20 inches).
    • Low cost, high accuracy elastomer strain measurement.
     

  • Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
    Output: Either 2 to 8 VDC, depending on model (at 10 VDC input) or 2 to 4 mV/V, nominal, selectable at time of order
    Linearity: ≤0.15% of full scale measuring range
    Resolution: 0.18 mm (0.007 inches) for all measuring ranges
    Temperature Range: -40℃ to 100℃ (-40°F to 210°F)
    Cable: Integral, ultra-flexible cable, 2.5 m (8 ft) standard
    Operating Force: 20 grams typical, each head

 

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