Detailed steps
1. Turn on the power, put down the pendulum, let the pendulum stand still, and then press "Angle Return to Zero";
2. Check whether the current angle in the upper left corner is all 0, if it is all 0, hang up the pendulum;
3. After hanging the pendulum, check whether the current angle of the upper left front is within the range of -150°C plus or minus 0.5°C. If so, press the "loss test" button (if there is no "loss test" on the operation interface but only " Shock test", please click the mode switch to switch it to "loss test"), if the angle is not within the range of -150℃ plus or minus 0.5℃, please adjust the four corners or move one position to make the instrument in a horizontal position ;
4. After the loss test is completed, hang the pendulum again, and press "Mode Switch" to make it into the "Impact Test" mode;
5. Clamp the spline and press "impact test" to complete the test.
Precautions
1. The test mode must be loss test when starting up. If it is not loss test, please press the mode switch;
2. Whenever the pendulum is hung, the angle must be within the range of -150°C plus or minus 0.5°C. If it exceeds this angle range, please adjust the position of the instrument or the height of the ground angle;
3. After the loss test is completed, please switch the mode to impact test immediately. Each loss test only needs to be tested once when the instrument is turned on. As long as the instrument is not turned off, the loss test does not need to be redone!
Analysis and treatment of common problems
common problem | Analysis and Solution | |
1 | LCD display is abnormal | 1. Please check that the wiring of the LCD control board is secure and there is no looseness. |
2 | The data results of the same batch of samples are quite different | 1. The sample has rough edges. Please remove the burrs before doing the test 2. The clamping of the sample is not correct. 3. The unstable manufacturing process of the sample used in the test results in unstable physical properties. In the manufacturing process of the sample, it is necessary to strictly control the manufacturing process of the sample strip. The plastic sample cannot be sampled in the first few molds, and the sample can only be taken after the injection molding machine works stably. 4. The notch depth of the sample is not uniform. Please check the Notch Maker. 5. When installing the sample, the corresponding width gasket or thickness gasket is not selected, so that the striking center of the pendulum does not coincide with the center of the sample 6. Check whether the pendulum is damaged or deformed. If so, please contact us |
3 | The impact toughness in the printed results does not match the manual calculation results | Specimen thickness and specimen width are reversed on input. This equipment is in accordance with ISO179-2000 and ISO180-2000, GB/T1843-2008 "Rigid Plastic Izod Impact Test Method", the program is set as the remaining width of the bottom of the sample notch = sample width - notch depth |
4 | The test results are quite different from the known impact toughness of the samples | 1. The range selection is wrong. Select the range corresponding to the pendulum on the LCD control box 2. The sample is placed in the wrong direction. Correct installation method The direction of the notch of the cantilever beam should be facing the knife edge of the pendulum |
5 | The printer is not working properly | 1. Check whether the connection with the LCD control box is well connected 2. Check whether the printer itself is normal, please refer to the product manual of the printer or contact the printer manufacturer |
6 | The control box is not working properly or not working | 1. The communication line is not connected properly. Please check the interfaces at both ends of the communication line. 2. The control board inside the box is loose. Please turn off the power, open the control box, check whether the connection plugs are loose, if so, please re-insert them. Under normal circumstances, please do not open the control box |
7 | The pendulum cannot be hung on the pendulum shaft of the host frame | 1. The shaft hole of the plug at the upper end of the pendulum is slightly deformed, causing the diameter of the shaft hole to be slightly smaller than the diameter of the pendulum shaft. Insert a wedge into the opening of the plug, tap it in lightly, and expand the shaft hole of the plug a little |
8 | Friction loss out of tolerance | It may be caused by the dirt or damage of the ball bearing. At this time, the bearing should be removed for cleaning or replacement. There should be no lubricating oil in the bearing before installation, and finally install and reset in the original position. |
9 | pendulum does not return to zero | Check the level of the pendulum base, check whether the pendulum is bent, and check whether the friction loss of the testing machine is out of tolerance. |
