Three phase remote prepaid electricity meters have remote recharging, remote meter reading, mobile phone recharging, and SMS remindersWaiting for functions.Three phase remote prepaid electricity meters can be used for time-sharing metering, with a tiered electricity pricing function, suitable for use in shops, factories, and office buildings.

1、 Overview

The DTSYF6607 three-phase electronic prepaid multi rate electricity meter (hereinafter referred to as the "instrument") is designed and manufactured based on the actual electricity consumption of residents. It has high accuracy and reliability.

This instrument adopts advanced energy metering dedicated chips, designed in combination with mature multi rate and prepaid technologies, and is a high-tech product 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, 3 rates, and 12 day time slots; And it has infrared and 485 communication functions, which can achieve long-distance meter reading. The communication protocol can support DL/T 645-2007 "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".

2、 Main functions

Prepaid multi rate energy meters have the following basic functions:

3.1 Time based active and reverse energy measurement, reactive energy measurement, can be divided into 4 rates, 12 time periods, and 8 time zones.

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

3.4 Parameter rotation display can be implemented, and the parameters (not exceeding 32 items) and time intervals of the rotation display can be pre-set. The order of parameter rotation display can also be set arbitrarily.

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

3.6 Record the total active power and hourly power for 12 months, and meter reading can be done through infrared or 485 methods.

3.7 It has programming prohibition function and data reset function.

3.8 Support for reduced meter reading according to departmental regulations.

3.9 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.

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

3.11 adopts a one table one card method, with multiple verifications and encryption of data in the IC card, ensuring security and reliability.

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

3.13 Can set non working hours and emergency credit limits.

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

3.15 has an external alarm output interface.

3.16 has built-in sound and 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.

3、 Working principle

When the electric energy meter is working, the voltage and current are sampled separately by the sampling circuit, and then multiplied by a dedicated integrated circuit for electric energy processing before being sent to the CPU for processing. Finally, the CPU sends the processed data to output devices such as the display and communication parts as needed.

The information system is managed by a computer, and through an IC card reader/writer, a certain amount of electricity and monitoring requirements are written into the IC card input table of the microprocessor system. After being processed by the CPU, it provides display, alarm, and cut-off status signals.

4、 Technical indicators

4.1 Accuracy level Active 1.0 Reactive 2.0

4.2 Reference voltage 220/380V

4.3 Rated current 3X 1.5 (6) A, 2.5 (10), 5 (20) A, 10 (40) A, 15 (60) A, 20 (80) A

4.4 Rated frequency 50Hz

4.5 Starting current level 1: ≤ 0.004In Level 2: ≤ 0.005In

4.6 Stealth with anti creep logic design