Model 7642

Model 7642

Model 7642

Product catalog summary
Overview: The document provides detailed information about the Model 7642 High Temperature Un-Cooled Extensometers, designed for use in environmental chambers at temperatures up to 700°C (1300°F) without cooling. These extensometers are suitable for testing composites, metals, and high-temperature polymers in various testing scenarios.
Specifications:
  • Temperature Range: Ambient to 700°C, with potential use up to 800°C.
  • Output: Analog output of +/-5VDC or +/-10VDC, and 24-bit high-speed Ethernet digital output.
  • Linearity: 11-point linearization with ≤0.1% FS typical linearity.
  • Resolution: <55 PPM (0.006%FS) RMS @4 kHz, <6 PPM (0.0006%FS) @100 Hz.
  • Cyclic Testing: Capable of >25 Hz, up to 100 Hz with small travel units.
  • Environment: Suitable for elevated temperature testing in dry air, inert/non-corrosive gases, or vacuum.
Features:
  • Can remain attached through specimen failure.
  • Improved performance at high temperatures with reduced size and weight.
  • Includes a digital controller with high-speed analog and digital outputs, web-based interface, and built-in calibration features.
  • Comes fully calibrated with electronics and user-specified voltage output.
  • Meets ASTM class B-1 requirements for accuracy, with ISO 9513 class 0.5 test certificates available.
  • Rugged dual flexure design for strength and improved performance.
Options:
  • Gauge length adapter kits for temperatures ≤ 300°C.
  • Connectors for interfacing with various test equipment brands.
  • Bulkhead adapters for vacuum chambers.
  • Dual-channel DT6229 controller available.
Ordering Information: The Model 7642 is available in various configurations of gauge length, measuring range, and temperature range. Custom configurations may be available upon request.
Contact Information: For more details or special testing requirements, visit www.epsilontech.com or contact Epsilon Technology Corp. in Jackson, WY, USA.
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Catalog excerpts

Model 7642-1

7642 High Temperature Un-Cooled Extensometers (700 °C) For use in environmental chambers where the entire extensometer must be exposed to elevated temperatures. These capacitive extensometers may be used up to 700 °C (1300 °F) without any cooling. These extensometers use a high-temperature capacitive sensor and do not require any cooling. They will operate up to the maximum temperature limit of most environmental chambers used in materials testing. The Model 7642-010M-025M extensometer Model 7642 is ideal for testing composites, metals and high temperature polymers in tensile, compression or cyclic testing. All units can be displaced in both compression and tension. The extensometer is supplied with the advanced DT6229 controller. The standard output is 0-10VDC analog signal, factory calibrated with the extensometer. This system provides a number of functional enhancements, including high speed digital output, built in calibration and tare functions, analog and digital filters, and more. The 7642 is readily interfaced with most existing test controllers, and may be directly connected to a data acquisition system or chart recorder, or directly to a PC. The 7642 may be used for strain controlled tests such as low cycle fatigue (LCF). Visit our website at www.epsilontech.com

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Model 7642-2

Ordering Information May be left on through specimen failure. Model 7642 Available Versions: ANY combination of gauge length, measuring range and temperature range listed below is available, except as noted. Other configurations may be available with special order; please contact Epsilon to discuss your requirements. • Improved performance at high temperature. • educed size and weight, and improved high frequency performance up to 100 Hz. R • Improved noise rejection. • Digital controller and power supply included. Provides high level DC voltage output with low noise. Easily interfaced to test...

 Open the catalog to page 2
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