The automatic relaxation and creep tester EB 18-II-3 has 3 test stations and an individual control of each test station as well as the temperature of each cell. The temperature range is between +40 to +200 °C. The EB 18‑II‑3 instrument perfoms tests according to ISO 188 method A, ISO 3384-1 method A, ISO 6914 method A, and ISO 899 with modified test specimen (no strain gauge required).
By default, the EB 18-II-3 instrument is delivered with compression plates and 1000 N load cells. Other accessories such as different loadcells, testing in compression in liquid, testing in air in tension and special clamps for testing in creep according to ISO 899-1 can be ordered separately.
A high temperature version with temperature up to +300 °C (EB 18-II-3HT) and a version with high force up to 2 000 N (EB 18-II-3HF) can also be supplied.
If testing at room temperature is wanted, the test can be performed with the rigs in their raised position in the hood instead of down in the cells of the oven.
The test rigs are based on our relaxation rig EB 02, but here the lowering and raising of the rigs as well as the compression or stretching of the samples are motor driven by a servo motor.
The test rigs are built into a cabinet made of polycarbonate with aluminium profiles, which provides the same temperature stability around the upper part of the rigs as our other continuous relaxation test systems. The oven is one of our high precision ageing ovens, and meets the international standard ISO 188 method A as well as other technically equivalent standards.
The EC 13 Windows application, which is a part of the EB 18‑II‑3 automatic relaxation and creep tester, helps the user setup the test and it continuously displays the results.
Easy to change between test methods
Both testing methods, stress relaxation and creep uses the same accessories. The shifting between the two test methods is done when the EC 13 software is started. Changing between compression and tension consist of a simple rebuilding of the rigs, thoroughly described in the manual.
Note: For the best performance of the instrument, we recommend a placement in an environment with a stable temperature between +10 to +30 °C.
Standards
- ISO 188 method A
- ISO 3384-1 method A
- ISO 6914 method A
- ISO 899 with modification
- other equivalent standards
Temperature range
+40 °C to +200 °C (EB 18-II-3, EB 18-II-3HF)
+40 °C to +300 °C (EB 18-II-3HT)
Important specifications
- EC 13 software – Required for using EB 18‑II‑3
- Temperature variation in time ± 0,25 °C
- Temperature indicator with sensor in each cell (PLC)
- Temperature controller with 0,1°C set point (PLC)
- Adjustable upper and lower temperature limits with alarm (PLC)
- Controlled from a micro PLC, with a colour touch screen
- Test names can be given in the PLC
- Special design with controlled air exchange rate and low air speed
- Built in air pump
- Alarm for low air pressure (PLC)
- Improved insulation reduces energy consumption, environmental impact and cost
- Cooling channels in the casing for low surface temperature
- Indication of power failure (PLC)
- Run-time meter (PLC)
- Countdown timer for each cell (PLC)
- Alarm history
- Microfilter for the air which removes 99,99 % of all particles over 0,1 μm
Included with EB 18‑II‑3
- All-in-one computer (Windows) with monitor, keyboard and mouse
- Support agreement first year
- Manual in English
- Tools such as a stylus pen for the instrument touch screen
- Accredited calibration including certificate
Optional accessories
For rebuilding the rigs to tension
- EB 02.02 Grips for testing relaxation in tension, according to ISO 6914
- EB 02.03 Load cell 100 N for tests in tension, including adapters
- EB 18-II.01 Clamp for creep test in tension, according to ISO 899-1
For testing in liquids
- EB 02.01 Container and pressure plate (with a hole in the centre) for measurement in liquids, according to ISO 3384
For flexural creep testing of plastics
- EB 02.29 Fixture for flexural creep by 3-point loading, according to ISO 899-2
More information
Product brochure: Elastocon – Stress relaxation and creep systems.pdf
Watch Elastocon's video about the automatic relaxation and creep tester
