What Are The Reasons For The Failure of Smart Power Meter Measurement Accuracy？

Accuracy of metering data in smart meters is critical. However, in actual operation, the out-of-tolerance measurement accuracy is one of the main faults of smart energy meters. The remote meter reading system will introduce the main fault manifestations to you:

First, when there is voltage and current, the smart meter does not show the number. Currently, it is necessary to check. It is possible that the pulse is not connected, the line connection is not strong, and there are places where there is virtual welding, and the internal lines should be checked one by one.

Second, in the case that the smart power indicator is not displayed, the cause of the failure is still not found, then it is necessary to consider whether the electrical components are damaged. If the electrical components are damaged, the voltage and current cannot be supplied normally.

The third electrical component causes errors in the measurement of the smart meter. Since the resistances in the smart meter are different, they all play their own roles. The aging of the resistance will also affect the change of the measurement data of the smart meter.

Fourth, add voltage and current, other functions are normal, but the electricity is not counted. This situation is generally caused by the failure of the CF pin of the metering chip to send the active power pulse signal to the MCU for processing.