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Questions

Why does im1253b power metering module need two power supplies? Can you only use one circuit of power supply?

A: why do I need two routes? Because manganese copper sampling is adopted for this module, the ground of the whole module is on the live li...
2022-11-24
When the im1253b module is actually measuring, why is the measured voltage and current multiplied by the power not equal?

Answer: the calculation formula of standard active power is: voltage x current x power factor (uxixcos Φ）, Never lower the power factor. ...
2022-11-24
How to test the performance of im1253b electric energy metering module after receiving the goods?

A: the im1253b can realize AC and DC adaptive measurement, that is, the im1253b you purchased can measure both DC and AC parameters. You do...
2022-11-24
Can im1253b measure AC and DC? How can I distinguish these two modules.

A: the im1253b can realize AC and DC adaptive measurement, that is, the im1253b you purchased can measure both DC and AC parameters. You do...
2022-11-24
What is the significance of calculating the parameters in hfconst formula in the first step of the meter calibration method in the application note of

EC takes the empirical value of 3200. Finally, the hfconst is calculated to be 9957, converted into hexadecimal number 0x26e5 and written i...
2022-11-24
Can im1281b single-phase electric energy metering module be used to measure three-phase electric energy?

Yes, please refer to the following application wiring diagram: precautions:There are 3 design methods of communication port with MCU:Three...
2022-11-24

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