1. When the following situations occur, you need to consider purchasing an electronic smart meter :
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1. Is the monthly electricity bill expensive for factories and companies?
2. Manual meter reading, labor cost is high?
3. Mechanical meters need to be re-calibrated each season, with high maintenance costs and high transportation costs?
4. Whether it is a computer or a mobile , do you want to observe the electricity consumption anytime, anywhere?
5. Difficult to charge electric fees for shopping mall management. Do you want the owner to pay first and then use it?
If you have these problems, you may need to consider the mufti-function electronic smart meter
2. Let the energy meter manufacturer know where you will install it.
At present, most electricity meter companies have different solutions for different usage scenarios of electricity meters, such as data centers, base stations, or photovoltaics. After letting these electricity meter manufacturers understand your usage needs, they will recommend the most economical and convenient solution for you to install.
3. Make sure you know some basic electrical parameters like voltage or current.
In the process of communicating the plan with the digital power meter manufacturer, please make sure to understand some details of the site, such as the single phase/three phase, current on-site and whether there is a ±DC 24 power supply available on site. In meter communication, whether the meter is centrally installed or distributed. These basic parameters and on-site conditions will become an important basis for deciding the final plan
4. The accuracy errors of the remote smart meter.
The accuracy level of commonly used smart meters is generally divided into active power 0.5S level, 1 level, 2 level, and some high-demand substations are also useful 0.2S level. The allowable error of 0.5S level meter is within ±0.5%; the allowable error of level 1 meter is within ±1%; the allowable error of level 2 meter is within ±2%. To make sure the accuracy will meet your request, we recommend you to choose some manufacturers and products with production qualifications, complete production lines, and accuracy certificates.
5. The suitable communication solution for a remote smart meter.
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&#; The meter is installed in a decentralized manner, which is suitable for the use of the 4G or WIFI solution. The meter has the wireless upload function, can directly upload data to the system master station, has no concentrator, no wiring, no distance restrictions, and easy installation.
&#; The electricity meter is centrally installed, suitable for the use of the RS-485 scheme. The meter is connected to the concentrator with 485 wires hand in hand, and connected to the wireless gateway (a concentrator can connect up to 20 meters which can save costs.
6. Should I use the platform to monitor? With gateway or without a gateway?
To save the cost and monitor the electric parameter any time and any where, the answer is yes. For some companies do not have the CLOUD server, you can also ask your IoT meters provider to host by them. Like Acrel EMS Platform can be based on customer&#; cloud server or host by Acrel.
And for gateway, there are two methods to upload the data. One method is Acrel has some smart meters with the 4G/WIFI wireless function that can be directly connected to the cloud service system. Another method is to connect to the gateway by RS485, the gateway will collect the data through the MODBUS-RTU and upload the data by MQTT to the platform.
7. choose some big brand meters to make sure the quality and circle life.
It is best to choose a first-line big brand electric meter directly supplied by the manufacturer when purchasing a smart meter. In this way, it can be guaranteed that it is genuine, the quality is also guaranteed, and the error rate is controlled between three to four ten thousandths. The normal lifespan of smart meters now is 5 years.
8. Prepare the installation.
The installation and wiring of the electric meter and the acquisition equipment are not complicated. An ordinary electrician can meet the needs. The general company does not recommend arranging employees to help with the installation on site. Because if the employee is arranged to go there, the employee's salary, transportation, accommodation, and food will need to be added to the transaction cost, which will be much higher in relative terms. However, the company will arrange professional customer service to explain the installation and use details in detail.
Whether your application is tenant submetering or power quality monitoring, there are many critical features to consider when selecting the right energy meter. Availability of industrial automation protocols, specified accuracy class, design or form factor, and other key specifications require thoughtful review before making a final choice to ensure the meter matches your project objectives. As you work through the selection process, here are five important criteria to keep in mind.
Some energy meters utilize add-on modules to increase base meter functionality by expanding I/O and communication protocols. As project requirements evolve over time, communication options can be added as needed, ensuring that the meter adapts as conditions change. Rather than replacing the existing meter or over-specifying at the beginning of a project, time and money are saved by performing necessary in-field upgrades to previously installed equipment.
Especially critical in retrofit situations, it is important to select a meter which will integrate seamlessly into an existing building automation system. A software agnostic energy meter, particularly one that combines industry-leading versatility and multiple communication options in a robust, high-performance design, is critical to ensuring simple integration. Energy meters that use open, industrial communication protocols, such as Modbus and BACnet, are specifically suited to building system integration. They can be easily deployed into systems communicating via Modbus RTU, Modbus TCP/IP, BACnet MS/TP, or BACnet IP. In addition, some energy meters utilize other protocols including SNMP, DNP3, DNP3 over IP, IEC , or Ethernet IP along with post functions via FTP and HTTP for compatibility with existing servers or systems.
Applications such as submetering, protecting critical equipment, and measurement and control require reliable, high-precision measurements, The ability to monitor over 400 measurement parameters with ANSI C12.20 Class 0.2 revenue grade accuracy is imperative to safeguarding sensitive equipment and ensuring facility operations run at peak efficiency. In-depth analysis on collected data can be crucial to identifying improvement opportunities, further increasing facility performance.
Some power and energy meters are available in a variety of form factors, making it easy to tailor the instrument to each unique application. Configurations can include panel mount, as a DIN rail mountable transducer base for system integration, with a large LCD, or in a pre-wired enclosure for fast, efficient installation. Superior flexibility ensures the energy meter is well suited for industrial, commercial, residential, or any other project environment.
It is crucial to select a robust energy meter that combines innovative, industry-leading features in a single, high-performance instrument. Valuable features such as sub-100ms refresh rates, dedicated web server, and configurable Modbus registers provide facilities engineers critical system data for informed decision making. Additional features such as access to data logs, remote metering, tariff segregation, switch status monitoring, and threshold alarms set the energy meter apart from competitive devices and make it the preferred choice for energy professionals.
For more single phase smart meterinformation, please contact us. We will provide professional answers.