The usage steps of the switch characteristic tester

The switch characteristic tester can conduct mechanical performance tests on electromagnetic and circuit breaker devices. The detection of the switch characteristic tester is highly scientific and the detection parameters are accurate. After evaluation, it can comprehensively understand the mechanical condition of the equipment. Now, let’s take a look at the usage steps of the switch characteristic tester:

Step 1: Import four-terminal return resistance

Importing four-terminal return resistance is the step for the operation of the switch characteristic tester. Connect the return line of the tester to the four ports of the circuit board (operating unit), and after extracting the return resistance, the reset table of the tester starts to slightly swing left and right. This indicates that the switch characteristic tester has been started normally.

Step 2: Connect DC power supply

Most switch characteristic testers do not adopt a built-in DC power supply structure. Instead, the power supply is separated from the equipment host. When working, the equipment wires need to be inserted into the power connection port. When the values on the three voltage display discs are all 3 zeros, it indicates that the switch characteristic tester has entered the standby working state.

Step 3: Press the measurement switch and adjust the value

After connecting the DC power supply of the switch characteristic tester, press the test switch. The tester will enter the working state. At this time, the value on the voltage display table shakes between 0.1 and 0.9. The tester personnel need to manually adjust and set the pointer to 0.5 (if it is an intelligent operation panel, directly input 0.5). After adjusting the value, it is ready for work.

Step 4: Close the power circuit and cut off the power

After the test is completed, the switch characteristic tester can automatically reset. To ensure the safety of the equipment and personnel, the tester personnel need to close the power circuit and promptly cut off the power.

The above are the usage steps of the switch characteristic tester. First, import the four-terminal return resistance and connect the DC power supply. Then, the switch characteristic tester enters the standby working state. After everything is ready, press the measurement switch to adjust the value. After the test is completed, close the power circuit and promptly cut off the power. It should be noted that the tester personnel should wear insulating gloves throughout the process to prevent current leakage and personal injury.