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During the entire test, the gripper holding the specimen is fixed and the other is moved at a constant speed, so that the elongation of the specimen is proportional to the time. Principle: The sample of the specified size is stretched at a constant rate of elongation until it breaks off, and the breaking strength and elongation at break are recorded.
Second, the technical indicators test force range: 0 ~ 5000N
Test force accuracy: 1%
Stretching gauge range: 0 ~ 400mm
Sample clamp initial distance: 20mm
Power supply: 380V50HZ0.2KW
Third, the electrical control box button and display instructions rise - press this button, the upper chuck up movement, to automatically stop the decline in the upper limit - press this button, the upper chuck to move down, automatically stop to the lower limit Stop - press this button to stop the movement force of the upper chuck - it can display the sensor output force value in real time, and also can display the maximum value of the sensor output during the test; it can be pressed to switch between the real-time force value and the maximum value. Power switch - press the "1" instrument power, press the "0" instrument power off, the operation steps 1, open the power switch, preheat 5 minutes.
2, by "rise", "decrease", "stop" button, move the chuck to the test required distance, clamping the sample.
3. Press on the force meter, then press and hold for 2 seconds to clear the value on the force meter. Then press "Up".
4. After the specimen is broken, press the “stop†button; record the force value and the length of the fracture, and complete the test once.
5, record the maximum force value, the direction of ≥ 780N (mass per unit area ≥ 200g /) / ≥ 490N (mass per unit area <200g /), zonal ≥ 390 as qualified.
V. Precautions 1. The sensor equipped with this instrument is a precision device and should avoid the impact and distortion of external force.
2. The instrument is equipped with an upper chuck stroke limit switch. When the upper chuck reaches the upper and lower limit positions, the instrument protects itself and the upper chuck stops moving.
3, non-professionals do not open the box to move the parts of the instrument.
4. When the motor is running, it is forbidden to place the head, hand, etc. near the chuck and moving parts to avoid injury.
5, in case of emergency cut off the power quickly! Check the cause and re-power on.
6, the instrument power supply should have a reliable grounding.
This article is the original article of Qingdao Zhongbang Instrument Co., Ltd. If you need to reprint it, be sure to add the source of the description. Reproduce the misappropriation without permission.
First, the characteristics of the instrument This test machine is mainly used in a variety of textile and composite materials for a variety of strength determination.