After checking that all connections are correct, you can power on the transducer under no-load conditions. Verify the transducer’s operational status: after normal power-on, all three green indicator lights should stay on. If the green indicators do not light up after power on, double check whether the power connections are properly made. If the power supply is correct but the indicators still do not light up, it may indicate that the transducer is in a non-zero-flux state. For more detailed cause analysis, please refer to the specification document.

Once confirming that the transducer powers on normally, you can begin using it for measurements. Hangzhi transducers can measure both AC and DC currents. Here we take DC as an example. When testing DC, the positive current direction must align with the arrow indicator on the top of the transducer. Now let’s use the standard source to output a 50A test current. You can see that the 6½-digit multi-meter has already read the secondary output voltage. Adjust the standard source to reduce the test current by 10%, and you will observe that the multi-meter display value changes synchronously with the test current.