High Elongation Extensometers – Model 3800
Designed for rubber, elastomer and high-elongation plastics testing for strains from 100%-2000%ε. Their unique design allows testing to failure and minimizes interaction with the sample.

WITH OVER 30 YEARS OF SERVICE
to the materials testing community, you know we will be there to stand behind our products when your critical application requires it.
38 EXTENSOMETER MODELS are available in many thousands of variations. Our focus on helping customers has led to the development of models to cover nearly any test method.
- May be left on through specimen failure.
- Applicable for testing to ASTM D412.
- The main body is stationary with only the lightweight traveling heads moving.
- Comes with an adjustable magnetic base for easy mounting.
- Large measuring range to 500 mm (20 inches).
- Includes the Epsilon Shunt Calibration System for on-site electrical calibration.
- Includes high quality foam lined case.
- Low cost strain measurement for testing high-elongation materials (>100%ε).
Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
Output: 2 to 4 mV/V, nominal; select at time of order
Accuracy: ±1 mm (±0.040 inches)
Resolution: 0.2 mm (0.008 inches)
Temperature Range: -40 °C to 100 °C (-40 °F to 210 °F)
Cable: Integral, ultra-flexible cable, 2.5 m (8 ft) standard
Operating Force: <200 grams typical per head
- Adapter kits to change gauge lengths.
- Connectors to interface to nearly any brand of test equipment.
Product Videos
Ordering Information
Click table options to configure
mm or inches | # |
---|---|
20.0 mm | -020M |
25.0 mm | -025M |
50.0 mm | -050M |
1.000 in | -0100 |
2.000 in | -0200 |
extension | # |
---|---|
+250 mm | -250M |
+500 mm | -500M |
+10.0″ | -100T |
+20.0″ | -200T |
Selected Tensile Measuring Range: _ _ _ _
Example: 3800-0100-100T: 1.0 inch gauge length, +10 inches measuring range (+1000% strain), temperature range of -40 °F to 210 °F
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Repairs/Service
If your unit is in need of service, calibration or repair, initiate the RMA process with us and we will be happy to assist.
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