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Model 3544 Circumferential Extensometers

Model 3544 Circumferential Extensometers

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Model 3544 Circumferential Extensometers

Product catalog summary

Features:

Full bridge, 350 ohm strain gaged design compatible with most test systems.
Adjustable for various specimen sizes by adding or removing chain links.
Rugged dual flexure design for enhanced strength and performance.
Includes a high-quality foam-lined case.
Self-supporting on the specimen and can be used with Model 3542RA axial extensometers.
Available versions for use in tri-axial confining pressure cells at high pressures and temperatures.

Specifications:

Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
Output: 2 to 4 mV/V nominal, depending on model.
Linearity: 0.25% to 0.30% of full scale measuring range, depending on model.
Temperature Range: Standard (-ST) is -40 °C to +100 °C (-40 °F to 210 °F).
Cable: Integral, ultra-flexible cable, 8 ft (2.5 m) standard.

Options:

Connectors for various test equipment brands.
Shunt calibration module available.
Horizontal, vertical, or user convertible orientations.

Applications:

Designed for concrete and rock compression testing or other large samples.
Measures change in circumference as the sample is compressed, providing accurate diametral strain measurement.
Custom roller chain mounts extensometer to specimen, expanding as diameter enlarges.
Self-supported with integral springs, adjustable for different specimen sizes.
Breakaway device protects extensometer during specimen rupture.
Versions available for tri-axial pressure cells, operating in oil environments up to 1360 bar at 200 °C (20,000 psi at 400 °F).

Ordering Information:

Model 3544 available in various diameter, measuring, and temperature ranges.
Example: 3544-200M-120M-ST for 50 mm to 200 mm diameter range, +12 mm measuring range, standard temperature option.

Designations:

Linearity options range from 0.25% to 0.30% depending on the model.
Temperature ranges from -265 ˚C to 175 ˚C available.
Diameter ranges from 50 mm to 200 mm (metric) and 2.00” to 8.00” (U.S.A.).

Catalog excerpts

Model 3544 Circumferential Extensometers-1

Technology Corp Model 3544 Available Versions: Any combination of diameter range, measuringrange and temperature range is available, except as noted. Diameter Range Օ U.S.A. Circumferential Measuring Range -0400 2.00 to 4.00Ԕ > DESIGNATIONLINEARITY S PECIFICATIONS Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max. Output: 2 to 4 mV/V nominal, depending on model Linearity 0.25% to 0.30% of full scale measuring range,depending on model Temperature Range: Standard (-ST) is -40 հ C to +100 C (-40 аF to 210 F) Temperature Range Cable: Integral, ultra-flexible cable, 8 ft (2.5 m) standard -LT -265 ЋC to 100 ڋC (-450 ڋF to 210 ڋF) > O PTIONS -ST -40 ڋC to 100 ڋC (-40 ڋF to 210 ڋF) -HT1 -40 ڋC to 150 ڋC (-40 ڋF to 300 ڋF) > 3544 with optional horizontal configuration. 1 Connectors to interface to nearly any brand of test equipmentShunt calibration module -HT2 -40 ڋC to 175 ڋC (-40 ڋF to 350 ڋF) > 1 (see page 96) -LHT -265 ڋC to 175 ڋC (-450 ڋF to 350 ڋF) > Horizontal, vertical or user convertible orientations 1 Short term use to 200 ڋ C (400 ڋ F) acceptable. Example: 3544-200M-120M-ST: 50 mm to 200 mmdiameter range, +12 mm measuring range, standard temperature option (-40 ڰC to 100 C) 3542RA and 3544 in test. VARIES WITHCONFIGURATION2.0652.3 Contact Epsilon for your special testing requirements. TYPICAL 3544 DIMENSIONS:[mm] inches 60 61 >

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Model 3544 Circumferential Extensometers

Model 3544 Circumferential Extensometers

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