How To Read The Smart Meter Is The Most Accurate？
Factory seal
The factory seal is the lead seal after the manufacturer has verified the meter in the factory, which is equivalent to the manufacturer's guarantee that all meters are normal.
Seal verification
The metering and testing qualification units authorized by the market supervision and management department shall test the electric energy meters, and the electric energy meters that pass the inspection shall be stamped with the "verification seal". The calibration stamp locks the communication template of the instrument, that is, the reading window of the instrument.
CMC logo
This is CMC, not CM (the C in front could easily be seen as a circle). CMC refers to the China Metrology Certification Mark. Only companies that have obtained a measurement manufacturing license can mark the CMC mark on their measurement instruments. This mark indicates that the manufacturer has the ability to produce measuring instruments, and the accuracy and reliability indicators of the measuring instruments meet the statutory requirements.
National standard
As we all know, GB stands for "national standard". GB/T 17215.321-2008 is the national electric energy meter inspection standard.
dl is the abbreviation of "power", and dl/t 645-2007 is the multi-function meter communication protocol in the electric power industry standard of the People's Republic of China.
To sum up, GB and DL indicate that the meter complies with national and industry standards.
Reading window
The numbers in the window show the accumulated power and the current date and time. The actual electricity consumption in a period is equal to the difference between the electricity consumption at the end of the period and the electricity consumption at the beginning of the period. Ordinary electricity meters are accurate to two decimal places.
The meter reads 625.60, which means the cumulative power consumption is 625.60 degrees when taking pictures. If the reading of the meter in the same period last month is 500.00 degrees, the monthly power consumption is 625.60-500=125.60 degrees.
Pulse modulation
During normal power usage, the pulse light flashes. If the pulse light is off, it means there is no electricity.
Brake light
When the power is normally used, the switch light does not light up, and the switch light only lights up when the switch is turned on. If the customer defaults on the electricity bill, the power supply department can remotely pull the switch. After paying your electricity bill, turn the lights on and off. Therefore, we have to pay electricity bills in time.
Infrared region
When the meter reads the meter manually, the meter reader needs to be aligned with the infrared area to read the meter. But in practice, the basic use of China Southern Power Grid in the low-voltage complete range has achieved full coverage! There is no need for meter reading workers, and it only needs to operate in front of the computer to achieve remote super-meter.
Through the sharing of this content, everyone has a certain understanding of smart meters. If you want to know more about the market information of smart meters, please feel free to contact us.
