Three phase prepaid energy meter (multi rate type)

Three phase prepaid energy meter (multi rate type)It is designed and manufactured based on the actual electricity consumption of residential industries. It has high accuracy and reliability.

Three phase prepaid energy meter (multi rate type)This high-tech product is designed using advanced energy metering dedicated chips, combined with mature multi rate and prepaid technologies, and manufactured using 16 bit digital sampling processing technology and SMT process. The key components are selected from internationally renowned long-life devices, which improves the reliability and service life of the product. The data display adopts a large screen LCD, which is convenient for meter reading.

This instrument can realize functions such as time-sharing metering prepayment, setting daily meter reading, handheld computer programming, and meter reading; Can set 2 time zones and 3 rates; And it has infrared and 485 communication functions, which can achieve long-distance meter reading. The communication protocol can support DL/T 645-1997 "Multi functional Energy Meter Communication Protocol", providing necessary conditions for electricity automation management.

Its performance indicators comply with the technical requirements for electronic active energy meters in GB/T 17215-2002 "Level 1 and Level 2 Static AC Active Energy Meters", meet the technical requirements for multi rate energy meters in GB/T15284-2002 "Special Requirements for Multi rate Energy Meters", and comply with various technical requirements of GB/T18460-2001 "IC Card Prepaid Electricity Sales System".

major function

Prepaid multi rate energy meters have the following basic functions:

Time of use active and reactive energy metering, which can be divided into three rates and two time zones, charged by amount.

Infrared communication, programming settings, and meter reading can be performed through a handheld computer.

◇ Parameter rotation can be achieved, and the parameters and time intervals of the rotation can be pre-set. The order of parameter rotation can also be set arbitrarily.

◇ Equipped with optocoupler isolation active passive pulse output interface, with the same pulse constant as the meter constant.

◇ It has programming prohibition function and data reset function.

◇ It has the function of purchasing electricity first and then using it, and automatically freezing the monthly electricity consumption rates on designated meter reading days.

IC card can be used for parameter setting and meter reading.

Adopting a one meter one card approach, the IC card contains multiple verifications and encryption of data, ensuring security and reliability.

Each time electricity is purchased, data is transmitted bidirectionally through the power card.

◇ Can set non working hours and emergency credit limits.

Within the rated current range, the maximum operating power can be limited (by the power supply department).

◇ It has an external alarm output interface.

◇ Equipped with built-in light alarm, trip and power-off functions

a. When overloaded, it is possible to control the output of alarm and trip signals by selecting whether to allow alarm tripping.

b. When the remaining power is less than or equal to the alarm set value, the alarm and trip signals can be controlled by selecting whether the meter is allowed to output alarm and trip signals.

c. When the remaining power is zero, the meter outputs a trip signal.