Smart Electric Meter: Single & Three Phase, Lorawan/4G/RS485/Cat. 1 with Ami/AMR Solution

Basic Info

Model NO.	DDZY2397
Display Method	Digital Display
Phase	Single Phase & Three Phase
Meter Type	Energy Meter/Electric Meter
Accuracy	0.5, 1.0, 2.0 S Class
Meter Connection	Terminal
HS Code	9028309000
Production Capacity	50000 PCS/Month

Product Description

Type DDZY2397 (LoRaWAN)Single-phase IOT smart energy meterElectricity meter operating instruction 1. OVERVIEWThe intelligent electricity meter has the functions of electric energy measurement, power parameter measurement, time-sharing measurement, real-time freezing, on-off control, LoRaWAN and RS485 communication etc, which is suitable for single-phase power consumption occasions.
2. THE MAJOR TECHNICAL INDEXES

Qualification	Single phase direct table
Standards	IEC62053-21, IEC62052-11, DL/T645-2007
Rated voltage un	220V
Operating voltage range	80% Un ~115% Un
Rated current limit ib	5A
Maximum current: Imax	80A
Starting current	0.4% Ib
Power grid frequency	50Hz
Frequency range	±2%
Active measurement accuracy	Class B / 1
Reactive measurement accuracy	Class 2
Active pulse constant	1600(imp/kWh)
Reactive pulse constant	1600(imp/kvarh)
Clock precision	±0.5S/d (23ºC)
Normal operating temperature range	-25ºC~+55ºC
Extreme operating temperature range	-40ºC~+70ºC
Transportation and storage temperature range	-40ºC~+70ºC
Power dissipation	<1.5W ,10VA
The time that the blackout clock preserves	>24h
The RS485 interface	The default 2400bps, 1200bps, 2400bps, 4800bps, and 9600bps are optional
LoraWan frequency	CN470,RU864,IN865,EU868,US/AU915,KR920,AS923_1/2/3/4,Custom Channels

3. THE PRINCIPLE FUNCTIONS3.1. It has measure forward and reverse active energy functions. Electrical energy should be accumulated and stored separately for electric energy and total electrical energy at each time period such as tips, peaks, flats, and valleys. And it can also store and display the power of the previous 12 months.3.2. It can measure,store and display the voltage, current, power, power factor, frequency and other operating parameters and status of the current electricity meter. And it has overload protection function.3.3. There are two sets of rates (sharp, peak, flat, valley) and periods that can be programmed arbitrarily, and another set of rates and periods can be start to used at the set time point. Each set of rate time periods can be set with at least 2 time zones for a year. At least 14 time periods can be set within 24 hours. The minimum time period interval is 15 minutes. The time period can be set across zero points.3.4. It has freezing functions such as instantaneous freezing, regular freezing, daily freezing, agreed freezing and hour freezing.3.5. It has the function of event recording such as zero clearing, programming, proofread, power down, pulling and closing the brake, etc.3.6. Remote disconnection and power transmission function. Power off command is issued through communication interface such as RS485 to cut off the user's load loop; Or issue a power transmission instruction to turn on the user load loop.3.7. Active upload / bidirectional transparent transmission function. Actively upload the data to the corresponding platform through the LoRaWAN wireless network, with a default interval of 4 hours (settable).3.8. After the meter is powered on and the LoRaWAN module is connected to the network, the meter is automatically calibrated.4. OPERATION DECLARATION4.1. Electricity meter display

LCD full-screen display schematic diagram (as shown above) 4.2. Electricity meter is displayed by LCDThe specific display items are listed as follows: 4.3. Status indicator lampThe electricity meter uses a bright, long-life LED as a pulse indicator light.It has active power pulse indicator light: red, usually go out, flashing when measuring active power.LoRaWAN/NB-I o T/C at.1 Module status indicator: green. Always on indicates online, and flashing indicates going online.5. APPEARANCE DESCRIPTION AND INSTALLATION WIRING5.1. Installation drawing (unit: mm)

5.2. Wiring diagram

Direct accessOf these, 5,6 are reactive pulse output. 7,8 are active pulse output. 9,10 are multifunctional clock output. And 11,12 are RS485 output.5.3. InstallationLive installation of wiring is strictly prohibited!The electricity meter shall be installed indoors as far as possible. Special instrument box protection shall be used for outdoor installation. The installation bottom plate shall be fixed on the wall with strong fire resistance and not easy to vibration. There must be no corrosive gases in the surrounding air where the meter is installed. Avoid dust, salt spray, etc.When using the electricity meter, the wiring must be conducted strictly according to the wiring diagram in the tail cover of the meter. It is recommended to use copper wire for the lead connected to the terminal seat. The screws of the fixed lead in the terminal seat should be tightened to avoid burning the electricity meter due to bad contact and heating.6. TRANSPORTATION AND STORAGEAmmeters must be transported and stored under the original packaging conditions. Products shall not be severely impacted during transportation and unpacking, and shall be transported and stored according to GB / T 25480-2010 Basic Environmental Conditions for Instrument Transportation and Storage and Test Methods as stipulated in 2010. The products should be stored in the warehouse and placed on the platform frame. The stacking height shall not exceed five layers. No corrosive gases shall be present in the stored environment.7. WARRANTY PERIOD AND AFTER-SALES SERVICEIf the user complies with the transportation, storage and installation operation specifications, and the lead seal of the manufacturer is still complete.If there is a quality problem, our company is responsible for free repair or replacement within 18 months from the date of delivery the electricity meter.During the whole life cycle of the products, our company implements "three guarantees" for all electricity meter products, providing necessary maintenance and services. Providing equipment wiring diagram and necessary technical documents and drawings. According to the requirements of users, provide necessary training for maintenance personnel and operators. Providing training materials, and update the software regularly and provide free upgrade.After receiving the service request of the product user, our company will respond within 12 hours.Key Feature of LoRaWANLoRaWAN (Long Range Wide Area Network) smart electric meters bring several key features to the table, largely due to the specific advantages of the LoRaWAN communication technology itself. Here are some key features:

Long-Range Communication: LoRaWAN has a range of up to 15 kilometers in rural areas, and up to 5 kilometers in urban areas. This makes it perfect for smart meters, especially in areas where meters are spread out over large distances.

Low Power Consumption: LoRaWAN devices consume very little power, which means the smart meters can operate for years without needing a battery replacement. This is crucial in remote areas where regular maintenance may be impractical.

High Capacity: A single LoRaWAN gateway can handle up to thousands of nodes, meaning that a single gateway can receive data from thousands of smart electric meters, making it a cost-effective solution for large scale deployments.

Security: LoRaWAN uses two layers of encryption (unique network, application, and device keys) to ensure that the data being transmitted is secure. This is important in smart meters where privacy and security are key concerns.

Adaptability: LoRaWAN's Adaptive Data Rate (ADR) feature optimizes data rate, airtime, and energy consumption, making it suitable for varying network conditions.

Bi-Directional Communication: Unlike some other technologies, LoRaWAN allows for both uplink (device to server) and downlink (server to device) communications. This enables not just data collection, but also remote control or firmware updates if necessary.

Geolocation: LoRaWAN enables geolocation without additional power consumption, which can be beneficial in certain metering or grid applications.

Interoperability: LoRaWAN is based on open standards, which allows devices from different manufacturers to work together seamlessly. This is crucial for utilities companies who might have meters from different vendors. Product Application

1.Residential quarters: smart meter reading, energy-saving management, and prevention of energy waste.

2.Commercial places: saving costs, improving energy efficiency, real-time monitoring.3.Industrial enterprises: precise measurement, remote monitoring, energy saving and emission reduction.4.Government agencies: Unify management, reduce operating costs, and improve energy management levels. Company Profile

Wuhan Timewave IoT Technology is a high tech enterprise specializing in the application of Low Power Wide Area Network (LPWAN) core technologies to establish an energy monitoring service platform. We provide a one-stop solution and service for our clients, offering metering and communication equipment, software system platforms, project construction, and daily operation and maintenance. We independently develop and manufacture the "Timewave" brand LPWAN smart energy meters, smart water meters, smart gas meters, and alarm systems, among other communication terminal products. Coupled with the "Timewave Cloud" energy supervision platform, which encompasses metering, meter reading, billing, management, and control of water, electricity, gas, and heat, we can provide and implement automatic meter reading and billing, carbon emission monitoring, safe electricity use, energy consumption analysis, energy-saving analysis, transformer monitoring, data center environment monitoring, and intelligent operation and maintenance. We have a wealth of experience in the practical application of water and electricity meters using LoRaWAN technology. The "Timewave Cloud" energy supervision platform is widely used in various settings, including campuses, supermarkets, apartments, hospitals, factories, parks, buildings, railways, airports, data centers, and more.We have connected over 200,000 IoT terminals, implemented over 200 projects, and expanded our reach to over 30 provinces and cities across the country. Moreover, we provide operation and maintenance support for ground projects in multiple countries and regions, including Indonesia, Turkmenistan, Laos, North Korea, and Mongolia. Timewave IoT Technology is committed to solving issues related to difficult meter reading, billing, payment, energy-saving and efficiency improvement, and safe energy use. We aspire to become a leader in the field of energy IoT and energy supervision platforms.