I have arranged the contents of Suzhou relay testing methods for everyone. With the continuous development of Suzhou relay technology, Suzhou relay has gradually penetrated into people's daily life.
The contact resistance of the relay is used for the resistance gear of the multimeter. The resistance of constant contact and moving point was measured. The resistance value shall be 0, and the constant contact point and moving point shall be infinite. Therefore, we can distinguish between normally closed contact and normally open contact. Let's have a look.
The resistance of the relay coil can be measured with a multimeter R * 10 ohms. The resistance of the relay coil can be measured to determine whether the coil is open.
Measure the absorption voltage and current to adjust the voltage regulator and ammeter, input a set of voltage to the relay, and monitor the ammeter in the power circuit. When the relay is absorbed, slowly increase the supply voltage and record the pull in voltage and the suction current. For accuracy, you can try several times to get an average.
The measurement of release voltage and release current is also the same as above. When the relay is absorbed, it gradually reduces the supply voltage. When the relay releases sound again, the voltage and current can be recorded, and the average release voltage and current can be obtained multiple times. Generally speaking, the release voltage of the relay is about 10~50% of the absorbed voltage. If the release voltage is too small (less than 1/10 of the suction voltage), it cannot be used normally. This will threaten the stability of the circuit, and the operation is unreliable.
Suzhou Lvsong Electronic Technology Co., Ltd. devotes itself to Suzhou relay, has mature process flow, strong technical force, specializes in Suzhou relay, and strives for survival by quality. Welcome to consult.
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