Elastocon AB

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, is computerized, and performs the test automatically after the cooling media has been cooled down, and the samples have been mounted. The instrument has an automatic release of the samples, after the pre-cooling time.

The computer controls both the temperature rise and measures the length change of the samples. The results are displayed in a graph and TR10, TR30, TR50 and TR70 values are calculated. The result can also be presented as a table with length change versus temperature. The TR-values and the table values can be exported to other software such as spreadsheets.

We recommend the automatic cooling system with liquid nitrogen that can be supplied.

Another useful option is the ET 04 freezer for precooling of the cooling media (usually ethanol), during nights or other times when the instrument is not in use. If the cooling media is pre-cooled, the amount of liquid nitrogen necessary to start the test will decrease remarkably.

Standards
The TR Tester performs well inside the apparatus requirements in ISO 2921 and ASTM D1329.

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: 0–150 mm
Important specifications
The rig is raised with the help of a pneumatic cylinder
Temperature controller with 0,1 °C setpoint and RS232 interface
Solid state relay for safe control
Temperature sensor close to the samples
Run-time meter (PLC)
The casing consists of steel, painted with epoxy paint
Included accessories with ET 01-II
Computer (Windows)
EC 12 software for the TR test
Support agreement 12 months
Manual in English
Necessary tools (e.g. stylus pen for PLC touch screen)
Accredited calibration including certificate
Options for ET 01-II
ET 01.02 – Automatic cooling with liquid nitrogen
ET 01.03 – Grips for O-rings (both whole and cut)
ET 01.04 – Extra Template 50 or 51 mm for setting the test distance

The EB 16-II Hot Set Tester is made for hot set testing of cable material according to IEC 60811-2-1 and other equivalent standards.

To avoid too high temperature loss when inserting and cutting the samples, the samples are introduced through a small opening in the top of the oven. To get a suitable working height and not shake the samples during insertion, the oven is fixed and the sample holder moves up and down by a servo motor driven screw system.

The oven has a controlled air exchange rate and low air speed which can be controlled by a flow meter, meeting the requirements for ageing ovens in IEC 60811-2-1.

Measurements are made through the window with a laser pointer mounted on a measuring scale placed on the door. The window can be taken apart for cleaning. When measuring the elongation with a push on a button on the scale, the measured values are entered into a spreadsheet template, via a Bluetooth connection.

The templates are for testing 3 flat samples, 3 round samples, 4 flat samples with possibility to have 2 different materials, and 4 round samples with possibility to have 2 different materials.

The set is measured outside the oven with a digital caliper also connected to the computer. A finished report can then be produced in a spreadsheet software.

Standards
The oven performs well inside the apparatus requirements in IEC 60811-2-1 and other equivalent standards.

Temperature range
 +40 °C to +250 °C

Useful volume
60 litres

Important specifications

• The sample holder moves up and down by a servo motor
• Special design with controlled air exchange rate and low air speed (<0,001 m/s), which is dependent on the air exchange rate only
• Temperature variation in time ± 0,25 °C
• Temperature variation in space ± 0,5 %
• Temperature controller with 0,1 °C setpoint
• Temperature indicator with sensor in the test space
• Solid state relay for safe control
• Adjustable over and under temperature limits with alarm
• Fixed over temperature fuse at 340 °C
• Over temperature safety relay
• Flowmeter with needle valve, for setting the air exchange rate
• The temperature, timers, alarms and movement are controlled by a micro PLC with colour touch screen
• Laser pointer for measuring the elongation
• Calliper for measuring the tension set
• Temperature controlled cooling fan for the electronics cabinet
• Run-time meter

Included accessories

• Clamps and weights for 8 samples are included as well as the computer (Windows)
• Necessary tools (e.g.stylus pen for PLC touch screen)
• Accredited calibration including certificate
• Manual in English

Spreadsheet template for testing and result report for
– 1 material, 3 samples
– 1 material, 3 samples – round material
– 2 materials, 2 samples per material
– 2 materials, 2 samples per material – round material

Not included accessories, needed for the hot set test

• a balance
• sample preparation instruments such as a cutting press, cutting dies, a marker, and a pair of scissors

Options

• EB 16.01 – 1 set of extra grips, weights and hook
• EB 16.03 – 8 sets of extra grips, weights and hook
• EC 11 – Monitor Software
• Network cables