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When we are testing the relevant data of the thermistor, we basically use a multimeter to detect it. Generally, it is basically divided into the following
Steps: The first step is to perform indoor room temperature testing. At this time, the indoor temperature is required to be close to 25 degrees Celsius. Then we don't need
To use the test leads for testing, you need to replace the test leads with alligator clips, and use our alligator clips to clamp the ends of the PTC thermistor.
Measure the actual resistance of the thermistor, and compare it with our nominal resistance, if the actual measured resistance is with us
If the nominal resistance difference is based on the upper and lower 2 ohms, it means that the thermistor is normal. On the contrary, if the actual measured resistance is
If our nominal resistance is very different, this means that our thermistor is damaged or poor performance, then its
The thermistor can no longer be used.
The second one is that we warm up to test. If we say that the data we tested at normal temperature is normal, we still don’t put it on the thermistor.
In the heart, we can carry out the second heating test. We need to put a heat source such as a soldering iron on the side of the thermistor to be tested.
Heating, when heating to a certain level, we need to observe the value of the multimeter. Under normal circumstances, the value of our multimeter will
As the temperature changes, slowly, when the value of the multimeter rises to a certain value, it will stabilize.
The thermistor is normal. On the contrary, if there is no change in the resistance, this time, our thermistor is completely broken.
, can no longer continue to use, must be replaced with new ones. Http://