TR tester, ET 01-II, for determination of low temperature characteristics by the temperature retraction procedure according to ISO 2921 and ASTM D1329.

The Elastocon TR tester has 6 test stations. It performs the test automatically by releasing the test pieces from their elongated state, ramping the temperature, measuring the length continuously and finally stopping the test when the samples have retracted enough.

Click image to enlarge.

The EC 17 Windows application, which is a part of the TR tester, helps the user setup the test and it continuously displays the results. The application can be used to view and compare multiple tests and produce reports as defined by the standards, with results such as TR₁₀, TR₃₀, TR₅₀ and TR₇₀ presented. The results can also be exported so that it can be opened in a spreadsheet application, for example.

We recommend the addition of our automatic cooling system with liquid nitrogen, ET 01.02. Read more about ET 01.02 here.

Pre-cooling of the cooling media will drastically reduce the amount of liquid nitrogen required. We recommend the ET 04 freezer for this purpose. Keep an extra batch of cooling media in the freezer to always be ready to make a new test. Read more about the ET 04 freezer here.

Standards

• ISO 2921
• ASTM D1329
• other equivalent standards

Temperature control

• Temperature range: -80 °C to +20 °C
• Accuracy: ± 0,5 °C
• Resolution: ± 0,1 °C
• Sensor: Pt 100, 1/3 DIN

Length measurement

• Indicators: 6 pc digital encoders
• Resolution: 0,1 mm
• Measuring range: 0–175 mm

Important specifications

• EC 17 software – Required for using ET 01‑II
• The rig is raised with the help of a pneumatic cylinder
• Specimen sizes: 25 to 100 mm
• Max extension: 250% (with 50 mm test piece)
• PLC with touch screen for real-time control of the instrument
• Temperature controller with 0,1 °C setpoint and RS232 interface
• Solid state relay for safe control
• Temperature sensor close to the samples
• The casing consists of steel, painted with epoxy paint

Included with ET 01-II

• Template 50 mm (default) for setting the test distance
• Computer (Windows)
• Support agreement 12 months
• Manual in English
• Stylus pen for the instrument touch screen
• Accredited calibration including certificate

Options for ET 01-II

• ET 01.02 – Automatic cooling with liquid nitrogen 
  – Read more about ET 01.02 here
• ET 01.03 – Grips for O-rings (both whole and cut)
• ET 01.04 – Extra templates for setting the test distance; 25 mm, 38 mm and 51 mm (for ASTM), or 100 mm (for ISO)
• ET 01.08 – Adjustable table 
  – Read more about ET 01.08 adjustable table here
• ET 04 – Ultra low temperature freezer -85 °C 
  – Read more about the ET 04 freezer here.
• EA 01 – Silent air compressor, 105 l/min  
  – Read more about EA 01 here

More information

Product brochure: Elastocon – Low temperature testers.pdf

Watch Elastocon's video about the TR tester