Elastocon Gehman Tester ET02-II Manual
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Elastocon Gehman Tester ET02-II Manual

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Elastocon AB
Tvinnargatan 25
•
Phone: +46 33 323 39 00
Manual
Gehman Tester ET 02-II
© 2016-2020, Elastocon AB, SWEDEN
Content
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1.
2.
3.
4.
5.
6.
7.
Technical documentation supplied on USB flash drive
SE-507 30 Brämhult
•
info@elastocon.se
•
Sweden
•
www.elastocon.com
•
p. 3
p. 3
p. 5
p. 10
p. 17
p. 17
p. 17
p. 19
p. 19

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Summary of Contents for Elastocon Gehman Tester ET02-II

  • Page 1: Table Of Contents

    • Phone: +46 33 323 39 00 info@elastocon.se www.elastocon.com • • Manual Gehman Tester ET 02-II © 2016–2020, Elastocon AB, SWEDEN Content p. 3 p. 3 Installation of the Gehman Tester Freezing software p. 5 Using the Gehman Tester p. 10 p.
  • Page 2 Elastocon Manual – Gehman Tester ET 02-II Addition Combined TR, Gehman and Brittleness Tester When using our combined instrument there are some things that needs to be done before starting the test. • Change the rig manually by turning it clockwise or anti clockwise and lock it with the locking device.

  • Page 3: Use

    Elastocon Manual – Gehman Tester ET 02-II 0. Use Instrument to determine the relative stiffness characteristics of vulcanized or thermoplastic rubbers, also called the Gehman procedure. The test is done according to ISO 1432, ASTM D1053 method A, or technical equivalent standards. 1. Installation of the Gehman Tester 1.1 Unpacking...
  • Page 4 Elastocon Manual – Gehman Tester ET 02-II 1.2 Installation If the main plug does not fit your outlet, cut the cable and replace with a suitable grounded plug. The cable colours means: Brown = live, Blue = neutral and Yellow/Green = ground. This change should be done by an authorized person. Note: Remember to compare the outlet voltage and the voltage labeled on the instrument.

  • Page 5: Freezing Software

    Elastocon Manual – Gehman Tester ET 02-II 2. Freezing software 2.1 Installation LAN settings The Gehman Tester uses IPv4, which is an addressing system of communication by Ethernet. For proper communication between the Gehman Tester and the PC the connection must be set correctly according to how the Gehman Tester is connected.
  • Page 6 “Install Programs” to install the program. The program and other files will be installed in the application directory Elastocon Freezing along with calibration data. A working directory will be created with the path Elastocon Data\ Gehman Data). The program’s settings will be stored in the system directories for Windows.
  • Page 7 Elastocon Manual – Gehman Tester ET 02-II 2.2.1 Change calibration profile The instrument needs to be calibrated annually. If the calibration deviates too much from any calibration instrument used, a correction must be made. The current calibration file can be loaded into in a calibration software and the calibration can be adjusted. This software can be found on the installation USB flash drive and can be launched directly from the USB flash drive (FrezCal.exe).
  • Page 8 Elastocon Manual – Gehman Tester ET 02-II 2.3 Software commands and settings File menu (Alt+A) figure 2.3a New = Start a new measurement (Ctrl+N). Open = Open an old measurement (Ctrl+O). Close = Close a measurement file. Figure 2.3a Print test results = Printing of the report. Prints both the RM- values and the graph.
  • Page 9 Elastocon Manual – Gehman Tester ET 02-II 2.4 Calculations Go to the “Edit” menu and select “Calculations”, see figure 2.4. RM Editor Select the RM data if you would like to evaluate. RM Editor shows the present values for evaluation. To add a new RM value: Enter the new value in the “New value”...

  • Page 10: Using The Gehman Tester

    Elastocon Manual – Gehman Tester ET 02-II 3. Using the Gehman Tester Switch on the power to the Gehman Tester and the computer (in this order). The touch display will make a self test and then show the temperature in the bath. The process value is in red. Start the software Elastocon Freezing.
  • Page 11 Elastocon Manual – Gehman Tester ET 02-II 11. Remove the aluminium template. Look at the position in the software as the template has been removed. A small deviation from 0° angle is acceptable. About 5°. Any higher deviation must be corrected and the procedure must be repeated.
  • Page 12 Elastocon Manual – Gehman Tester ET 02-II 3.1.3 Cooling of the liquid If manual cooling is used (carbon dioxide) set the controller to -100 °C in the software from the tag ”temperature”, see figure 3.1.3. This is to avoid heating during the cooling. Note: If carbon dioxide ice is used, crush it well and do not add to much, as this may Figure 3.1.3...
  • Page 13 Elastocon Manual – Gehman Tester ET 02-II 3.2 Starting a test 3.2.1 Initializing a test Mount the test pieces in the clamps. Be careful and do not press to much on the upper clamp, since this may damage the rod.
  • Page 14 Elastocon Manual – Gehman Tester ET 02-II In the Freezing software, select “New” in the “File” menu. Fill in a file name for your test (you have to give every test piece a unique file name), see figure 3.2.1c. Then press the button “Save”. A new dialog box appears where you fill in the test data. Identification First give your test a name in “Sample ID” and then eventually some comments in the note field, see figure 3.2.1d.
  • Page 15 Elastocon Manual – Gehman Tester ET 02-II The 23 °C test in liquid Have the rig raised. Manually type the start temperature in the box “Start temperature for LIQUID 23 °C test”. Change the “Data acquisition delay” e.g. 10 second and/or “Additional time for twist motion” e.g. 1 second, if necessary.
  • Page 16 Elastocon Manual – Gehman Tester ET 02-II 3.2.3 Low temperature test If the 23 °C test was performed in LIQUID, raise the rig to the upper position. A new dialog appears, see figure 3.2.3a. Press OK. The dialog box “Start procedure (23 °C test)” will change to “Start procedure (Low temperature test)”, if the 23 °C test has been performed correctly.

  • Page 17: Temperature Calibration

    Elastocon Manual – Gehman Tester ET 02-II 4. Temperature calibration The controller and sensor are adjusted at delivery and calibrated according to the attached certificate. Calibration should be done annually. 5. Service and maintenance Empty the container when not using the Gehman Tester. To clean the container and remove test pieces etc. from the bottom, remove the plate holding the motor and pump.
  • Page 18 Elastocon Manual – Gehman Tester ET 02-II No power to the pneumatic valves or cryogenic valve. Switch of the main power and remove the power coard from the instrument. Remove the hatch from the right hand side of the instrument (two screws).

  • Page 19: Safety

    Elastocon Manual – Gehman Tester ET 02-II 7. Safety Warning! Be careful when handling the liquid, the dry ice or liquid nitrogen. Wear protective clothing and safety glasses. Warning! We strongly recommend to arrange a ventilation to take care of the vapours from the liquid.
  • Page 20 Elastocon Manual – Gehman Tester ET 02-II Support support@elastocon.se +46 33 323 39 34 Elastocon AB Tvinnargatan 25 SE-507 30 Brämhult Sweden • • Phone: +46 33 323 39 00 E-mail: info@elastocon.se • www.elastocon.com...

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