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Nowadays, the measurement of wall hardness in many occasions requires the use of a digital hardness tester. However, if it is used for a long time, the measurement will be inaccurate. This is all caused by inattentive attention during normal use. Then I will bring you an introduction to the precautions for the use of the Leeb hardness tester.
1. Pay attention to the nominal value of the power supply voltage. The Leeb hardness tester is a kind of non-destructive testing. The ground wire of the Leeb hardness tester and the polarity of the power supply should be paid attention to. Because when the Leeb hardness tester and the signal source (such as a computer) are connected to different power sources, there may be a higher potential difference between the two zero wires. When the user plugs and unplugs the signal line or other plugs with power on, ignition will occur between the plugs and sockets, which will damage the signal input circuit, which may cause damage to the hardness tester. However, the portable Leeb hardness tester with its own battery is much more convenient without worrying about this problem.
2. The refresh frequency of the input source cannot be too high. Although the higher the refresh rate of the input signal source, the better the image quality, when using the hardness timer, we must also consider the refresh rate of the computer monitor it is connected to. If the two are inconsistent, the signal will be out of sync and cannot be displayed.
3. During use, the Leeb digital hardness meter should not be switched on and off frequently, because this may damage the internal equipment components of the Leeb hardness tester and reduce the service life of the bulb.
4. Many people need to pay attention when using the Leeb hardness tester. And in the event of an accident, do not open the instrument privately. You should seek the help of the manufacturer, so as to ensure a better working condition together.
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