I don’t know how to wire a prepaid electricity meter, how to use a prepaid electricity meter?

don’t know how to wire a prepaid meter, how to use a prepaid meter
Before using an electric energy meter, check whether the lead seal is intact. Electrical energy meters that are unsealed or have been stored for too long must be re-inspected by the metering authority before installation. Ensure measurement accuracy
The electric energy meter should be installed indoors in a dry and ventilated place to avoid direct strong light shining on the window of the electric energy meter. The bottom plate of the electric energy meter should be placed on a solid insulating object that is not susceptible to moisture. The recommended installation height is above
The electric energy meter should be wired according to the shell wiring diagram. When wiring, pay attention to the matching of the current size and the wire. The connector terminals should be hung tightly to avoid damage to the meter when the current is too large
The voltage connected to the electric energy meter should comply with the voltage of the electric energy meter. The reference specified value overcurrent should not exceed the maximum current limit shown on the electric energy meter. Exceeding this range will cause inaccurate measurement, damage to the instrument and unsafe accidents
When the electric energy meter is connected to the above specifications , copper core leads and copper connectors should be used for connection
Prepaid electricity meters do not understand wiring, how to use, transport and store prepaid electricity meters
The transportation and unpacking of electric energy meters should not be subject to severe impact, and transportation should be used Precision instruments shall be transported and stored in accordance with the provisions of the General Technical Conditions for Packaging of Instruments
The electric energy meter should be kept in the original packaging box, the storage location should be clean, the ambient temperature should be between degrees Celsius and degrees Celsius, and the humidity should not exceed The air should not contain harmful substances that can cause corrosion
I don’t know how to wire a prepaid electric meter, how to use a prepaid electric meter
This product is a precision electronic instrument. It was hit hard or dropped from a high altitude during the transportation and installation of the product. When there are obvious signs of damage to the outer casing, please do not power up the energy meter and contact our company for processing as soon as possible
If the energy meter is not installed and used for a long time, it should be packaged intact and returned to the original box for storage for no more than three years
Beijing plug-in electric meter】Classification of electronic voltmeters
Voltmeters are divided into two categories: analog voltmeters and digital voltmeters according to their working principles and reading methods
Analog voltage
Analog Type voltmeter, also called pointer voltmeter, generally uses a magnetoelectric DC ammeter as an indicator of the measured voltage. When measuring DC voltage, it can be directly or amplified or attenuated into a certain amount of DC current to drive the pointer deflection indication of the DC meter. When measuring AC voltage, it is necessary to convert the measured AC voltage into a proportional DC voltage through an AC-DC converter, that is, a detector, and then measure the DC voltage. Analog voltmeters are divided into the following categories according to different methods
①Beijing electric meter quotation Beijing plug-in electric meter Beijing electric meter price is divided according to operating frequency
Divided into ultra-low frequency (below) low frequency (below) video (below) high frequency or radio frequency (below) ultra-high frequency (above) voltmeter
② According to the measurement voltage level, it is divided into voltmeter (the basic range is the magnitude) and millivoltmeter (the basic range is the magnitude) )
③ According to the detection method, it is divided into average voltmeter, effective value voltmeter and peak voltmeter
④ According to the circuit composition form, it is divided into detection amplification type voltmeter, amplified detection type voltmeter and heterodyne type voltage< br/> [Beijing Plug-in Card Electricity Meter] Electric Energy
Fixed
An electric energy meter is an instrument used to measure the amount and speed of electric energy consumption, commonly known as watt-hour meter and fire meter
[Beijing Plug-in Card Electricity Meter] Divided
According to the use of industrial and civil electronic standard meters, the maximum demand meter compound rate
According to the structure and working principle, induction type (mechanical type) static type (electronic type) electromechanical integrated type (hybrid type)
/> According to the nature of the access power supply, AC table DC
According to the accuracy level, commonly used common
Standard
According to the installation and wiring method, direct access indirect access
According to the single-phase three-phase electrical equipment Phase three-wire three-phase four-wire electric energy
Nameplate name and model The first part is the category code Electric energy
The second part is the group code
The first letter three-phase three-wire three-phase four-wire reactive power standard maximum demand Single
The second letter of the compound rate table is fully electronic and multi-functional prepaid
The third part is to design the serial number in Arabic numerals
The fourth part is to improve the serial number using the lowercase Chinese pinyin alphabet
The five-part derivative number is for wet and dry heat, for plateau use in humid tropics, for general use in chemical anti-corrosion, switch plate type with receiver, pulse electric energy
It is also marked with a sign of ① or ②, ① represents the accuracy of the electric energy meter, Or grade meter ② represents the accuracy of the electric energy meter, or grade meter
It is also marked with the standard code used by the product, manufacturer’s trademark and factory number, etc.
[Beijing plug-in electric meter] Electric energy measurement sheet< br/> Active electric energy
Reactive electric energy
Character wheel counter window (LCD display window
The integer digits and decimal digits are in different colors, and the middle decimal point has a multiplication factor for each character wheel (no decimal point) (hour) The multi-function meter LCD display has two integer digits and decimal digits
Accuracy, etc.
Relative error, expressed by numbers placed in a circle
Calibrated current and rated maximum current
The calibrated current (rated current) is marked on the meter as the base current value for calculating the load
The rated maximum current electric energy meter can work normally for a long time, and the error and temperature rise fully meet the required maximum current
Rated electricity
Labels for single-phase energy meters
There are three labels for three-phase meters
Connected three-phase three
Connected three-phase four-wire
Electric energy meter constants recorded by the energy meter The ratio of the relationship between the electric energy and the number of revolutions of the turntable or the number of pulses
Rated frequency
Beijing residential plug-in card meter price quality assurance
The user of the electric energy meter must comply with the requirements of this manual within three years from the date of sale. It stipulates that if the manufacturing company finds that the electric energy meter does not meet the requirements of the technical conditions under the condition that the original factory seal is intact, the manufacturing company will provide free repair or replacement if it exceeds the warranty period, and provide long-term paid technical support and maintenance