How to use a multimeter to measure the positive and negative of a diode in detail
1, can not see the specific model of your multimeter;
2, the general digital multimeter, diode file when the measurement voltage is less than 2V, and you measure the P6KE36, which is a bidirectional diode, this diode, the multimeter diode file voltage should be at least 6V or more, in order to measure the diode file, and the general digital multimeter diode file is simply can not reach this voltage;
3, to put it simply, only the diode file of the voltage between the two pens to 6V or more, it is possible to measure this kind of diode, and your multimeter simply can not meet this requirement;
4, to use your multimeter to measure this kind of diode, you have to use a voltage regulator with a voltage over 10V or more
source, a resistor in series, and then in series with this diode, before you can measure whether it is good or bad;
5, as for the series connection of how much resistance value, how high power resistor, according to your normal operating current of this diode to determine, I can not give you a specific calculation here.
6, because your multimeter diode file voltage is not up to the requirements, so forward and reverse measurements are not available, but does not prove that this bidirectional diode is bad.
7, to put it simply, is that this diode can not be measured directly with the diode file of the multimeter.
Digital multimeter diode gear measurement of rectifier diode out of the value is what?
Use the digital multimeter diode gear, the red pen inserted into the VΩ hole black pen inserted into the COM hole, we know that in the digital multimeter red pen contact with the internal battery positive, black pen contact with the internal battery negative, and in the pointer multimeter in the resistance block is the red pen contact with the internal battery negative black pen contact with the internal battery positive, will be the digital multimeter red pen contact with the diode positive, black pen contact with the diode negative, () the normal value. Then the red pen contacts the diode negative pole and the black pen contacts the diode positive pole (measuring the reverse resistance value), the normal value is "1", if both measurements show 001 or 000 and the buzzer sounds, it means that the diode has been broken, if both measurements are "1", the resistance value is "1", if both measurements are "1", the resistance value is "1", if both measurements are "1", the resistance value is "1". If the two measurements of forward and reverse resistance values are "1" that the diode is open, if the two measurements of similar values, indicating that the quality of the tube is very poor, the reverse resistance value must be "1" or more than 1,000, the forward resistance value must be 300-600 Ω. Then the diode is good.
