VIP member
Remote Recharge Prepaid Energy Meter
This instrument can realize functions such as time-sharing metering prepayment, setting daily meter reading, handheld computer programming, and meter
Product details
1、 Overview
The DDSYF6607 single-phase electronic remote prepaid energy meter (hereinafter referred to as the "meter") 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 be set2A time zone,4Fee rate,12Daily time period; And it has infrared and485Communication function, capable of remote meter reading, communication protocol can supportDL/T 645-2007The Communication Protocol for Multi functional Energy Meters provides essential conditions for the automation management of electricity consumption.
Its performance indicators comply with the technical requirements for electronic active energy meters in GB/T 17215.321-2008 "Static AC Active Energy Meters for Class 1 and Class 2", 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
Remote prepaid energy meters have the following basic functions:
3.1 Time sharing active positive and negative energy metering, which can be divided into 4 rates, 12 time periods, and 2 time zones.
3.2 With staircase function, up to 4 staircases can be set, and the electricity quantity and price of each staircase can be set separately.
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.
3.15 has the functions of remote meter reading, remote opening and closing, and remote electricity sales.
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.
The working principle of the instrument is shown in Figure 1.
4、 Technical indicators
4.1 Accuracy Level Active 1.0 2.0 Level
4.2 Reference voltage 220V
4.3 Rated current 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
4.7 External dimensions 168mm × 110mm × 61mm
4.8 Weight approximately 1 kg
4.9 Electrical Parameters
|
Operating Voltage |
0.9Un～1.1Un |
|
Extreme working voltage |
0.75Un～1.15Un |
|
Voltage line power consumption |
≤ 2W and 5VA |
|
Power consumption of current circuit |
＜1VA |
|
Data backup battery voltage |
3.0VDC |
4.10 Rate Working Parameters
|
Clock accuracy (daily error) |
≤0.5S (23℃) |
|
Battery capacity |
≥1000mAh |
|
Data retention time after power outage |
≥ 10 years (using new batteries) |
4.11 Climate conditions
|
Normal operating temperature |
-20℃～+50℃ |
|
working temperature limit |
-30℃～+60℃ |
|
Storage and transportation temperature |
-40℃～+70℃ |
|
Storage and working humidity |
≤85% |
4.12 Technical Parameters
|
Number of rates |
4 |
|
Number of time periods |
12 |
|
Number of time zones |
2 |
|
Measurement range |
0～999999.99 kWh |
|
display |
Liquid Crystal (LCD) |
|
Baud rate |
RS485:1200bps~9600 bps, infrared port: 1200bps |
|
Communication Protocol |
DL/T645-2007 Multifunctional Energy Meter Communication Protocol |
5、 Display symbol description
Full screen display effect image
Please refer to Appendix 3: Functional Appendix Table for specific display items
6、 Electric meter diagram
Physical picture of electric meter
Explanation of indicator lights in the diagram
7、 Programming instructions
7.01 Programming allowed. The authorized person opens the programming switch button of the electric energy meter (completed by transmitting signals through an IC card), and the programming symbols are displayed on the LCD screen. The electric energy meter is in the programming state, and at this time, the handheld computer can communicate with the electric energy meter to complete the programming settings.
7.02 Data reset. If the energy meter is in the zeroing allowed state, use the zeroing card to reset all internal electricity data and historical record data of the meter.
7.03 Programming is prohibited. After the programming of the energy meter is completed (through signal transmission via IC card), press the programming switch button once, and the programming symbol on the LCD display screen disappears. At this time, the energy meter is in a programming disabled state, and the internal parameters of the energy meter can only be read out, not modified. Only electricity meters within the specified error range can be calibrated.
Note: In order to prevent unauthorized personnel from operating the programming switch after it is turned on, a 10 minute allowed programming time is specially set in the meter. When the time exceeds, the meter will automatically disable programming.
7.04 Table Number and Factory Number: The identification number for communication between the handheld computer and the energy meter. When reading or setting up meters, it is necessary to input the meter number or factory number of the energy meter in order for the handheld computer to communicate with the energy meter normally. The meter number can also be assigned to the user's account through the purchase of a power card. The factory number is assigned when the electricity meter leaves the factory and printed on the meter nameplate.
7.05 Rotation Time: The display time of each data item during rotation, with a default rotation time of 4 seconds.
7.06 Wheel Display Content Encoding: The encoding of the wheel display content that users can set according to their needs, as detailed in Appendix 3.
7.07 Automatic Meter Reading Date and Time: Programmable Meter Reading Date and Time. If the item is assigned as 28 00, the meter will automatically store the current data in the previous month's records at 0:00 on the 28th of each month. Users can set their content as needed.
7.08 Main and Deputy Time Periods: Two time periods can be set, namely two sets of rates, such as daylight saving time.
7.09 Sub period start and end dates: If set to start date 040503 and stop date 041003.
7.10 Time slot and rate number: The peak rate number is 01; The peak rate number is 02; The flat rate number is 03; The grain rate number is 04.
7.11 Public Holidays: 24 public holidays can be set at a time.
7.12 Weekends off: You can specify a weekend for the middle of each week.
7.13 Non business hours: You can set daily non business hours. For example: 18:00-08:30
7.14 Emergency credit limit: The limit of emergency credit allowed for users during public holidays, weekends, and non business hours can be set. The above management parameters can be transmitted from the management system to the user's electricity meter through preset cards and purchase cards.
7.15 Date: should be the current accurate date.
7.16 Time: should be the current accurate time. The date and time should be regularly checked on-site.
8、 Installation and wiring
8.1 The instrument shall be inspected and sealed with lead before leaving the factory. Before installation and use, it is necessary to check whether the lead seal is intact. If the lead seal is intact, it can be installed and used. For instruments without lead seals or stored for too long, relevant departments should be asked to re inspect them. Only qualified instruments can be installed and used.
8.2 The instrument should be installed in a ventilated and dry indoor area, fixed with three screws, and drilled with holes on the bottom plate according to the installation size shown in Figure 1 (150 × 231). The base should be fixed on a sturdy, fire-resistant, and non vibrating object to ensure safe and reliable installation and use. In places with pollution or potential damage to the instrument, the instrument should be protected by a protective cabinet.
8.3 The instrument should be wired correctly according to the wiring diagram. It is recommended to use copper wire or copper connectors for the incoming wires of the terminal box. The screws inside the terminal box should be tightened to avoid burning due to poor contact or thin leads.
8.4 The instrument will enter normal operation after being powered on according to the correct wiring as described above
8.5 Wiring diagram
Wiring diagram
9、 Transportation and storage
The product should not be subjected to severe impact during transportation and unpacking, and should be transported and stored in accordance with GB/T5464-1995 "General Technical Conditions for Packaging of Instruments and Meters".
Inventory and storage should be stored on racks in their original packaging conditions, with a stacking height not exceeding 5 layers.
The storage location should be clean, with an ambient temperature of 0-40 ℃, a relative humidity not exceeding 85%, and no harmful substances in the air that can cause corrosion.
10、 Guarantee period
From the date of sale, if the user complies with the requirements specified in the manual and the manufacturer's lead seal is still intact, and it is found that the electric energy meter does not meet the requirements specified in the technical specifications, the company will provide a one-year replacement, three-year repair, and lifelong maintenance
Online inquiry
-
Contacts
-
Company
-
Telephone
-
Email
-
WeChat
-
Verification Code
-
Message Content
-