Models 3911 Extensometer for Indirect Tensile Testing of Asphalt

Product catalog summary

Overview: The document describes the Model 3911 extensometer, designed for indirect tensile testing of asphalt, specifically for measuring resilient modulus. It highlights the advantages of the self-supporting design, which reduces errors from sample rocking and speeds up test setup.

Specifications:

Excitation: 5 to 10 VDC recommended, with a maximum of 12 VDC or VAC.
Output: 2 to 4 mV/V nominal, depending on the model.
Linearity: ≤0.20% of full scale measuring range.
Temperature Range: -40 °C to +100 °C (-40 °F to +210 °F).
Cable: 8 ft (2.5 m) ultra-flexible cable.
Specimen Size: Adjustable for 4 inch and 6 inch diameter specimens (100 mm and 150 mm).

Features:

Compatible with AASHTO TP31 and ASTM D4123 standards.
Full bridge, 350 ohm strain gaged design.
Meets ASTM class B-1 and ISO 9513, class 0.5 accuracy requirements.
Rugged, dual flexure design for improved performance.
Easy mounting with a breakaway feature for specimen fracture.

Options: Connectors for various test equipment and a shunt calibration module are available. The extensometer can be customized for special testing requirements.

Ordering Information: The Model 3911 is available in different measuring ranges, such as +0.030” (0.76 mm), +0.060” (1.50 mm), and +0.080” (2.00 mm). Customers are advised to consult the factory for additional ranges.

Catalog excerpts

Models 3911 Extensometer for Indirect Tensile Testing of Asphalt-1

Model 3911 Available Versions: Consult factory for additional ranges. Example: 3911-0006: +0.060 inches (1.50 mm)measuring range 3911 extensometer S PECIFICATIONS Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max. Output: 2 to 4 mV/V nominal, depending on the model Linearity: ≤ 0.20% of full scale measuring range, dependingon model Temperature Range: Standard is -40 C to +100 аC (-40 F to +210 аF) Cable: Integral, ultra-flexible cable, 8 ft (2.5 m) standard Specimen Size: Adjustable to fit both 4 inch and 6 inch diameter specimens (100 mm and 150 mm) > O PTIONS Connectors to interface to nearly any brand test equipment Shunt calibration module (see page 96) > 8.07205154.26.074.37111.5614.3 Contact Epsilon for your special testing requirements. TYPICAL 3911 DIMENSIONS:[mm] inches

Open the catalog to page 1