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A single phase digital meter is an advanced electrical measuring device designed to accurately measure the electrical energy consumption in a single-phase electrical system. It is used in residential, small commercial, and some industrial applications where single-phase power supply is utilized. Unlike traditional electromechanical meters that rely on moving parts to measure electricity usage, digital meters use solid-state electronic components and digital technology to provide precise and reliable readings.
(1) Accurate Measurement
Single phase digital meters are highly accurate in measuring electrical energy. They can precisely record both active energy (the actual energy consumed for useful work, measured in kilowatt-hours, kWh) and reactive energy (the energy that is stored and then released back into the electrical system, measured in kilovolt-ampere reactive hours, kvarh). The accuracy class of these meters can typically reach up to 0.5S or even higher, ensuring that consumers are billed accurately for the electricity they use.
(2) Digital Display
These meters are equipped with an easy-to-read digital display, usually an LCD (Liquid Crystal Display). The display can show various parameters such as the current energy consumption, power factor, voltage, current, and historical consumption data. This digital display makes it convenient for users to quickly understand their electricity usage patterns at a glance.
(3) Communication Capabilities
Many modern single phase digital meters come with communication interfaces, such as RS-485, power line communication (PLC), or wireless communication modules (e.g., ZigBee, LoRa, or cellular). These interfaces enable remote data collection and monitoring. Utility companies can remotely read the meter data without the need for physical access, which saves time and resources. Additionally, users can also access their electricity usage information through mobile apps or web portals, allowing them to manage and analyze their consumption more effectively.
(4) Load Profile Recording
Some advanced single phase digital meters have the ability to record load profiles. They can store data on electricity consumption at different time intervals (e.g., every 15 minutes or hourly). This data can be used to analyze the peak and off-peak usage periods, helping users optimize their electricity consumption and potentially reduce costs by shifting some of their usage to off-peak hours when electricity rates are lower.
(5) Tamper Detection
To ensure the integrity of the measurement and prevent unauthorized interference, single phase digital meters are often equipped with tamper detection mechanisms. These can detect if someone attempts to open the meter enclosure, manipulate the electrical connections, or interfere with the internal circuitry. When a tamper event is detected, the meter can record the event and send an alert to the utility company or the user, depending on the configuration.
The single phase digital meter works by first sampling the voltage and current signals in the electrical circuit. These signals are then converted into digital values using analog-to-digital converters (ADCs). The microcontroller inside the meter processes these digital values to calculate the electrical energy consumption based on the formula: Energy = Voltage × Current × Time. The microcontroller also performs other functions such as data storage, communication protocol handling, and display control.
In households, single phase digital meters are used to measure the electricity consumption of individual homes. Homeowners can use the meter data to monitor their energy usage, identify energy-efficient appliances, and make informed decisions about energy conservation. Utility companies can also use the data for accurate billing and to manage the distribution of electricity more effectively.
Small businesses such as shops, restaurants, and offices that operate on a single-phase power supply also use single phase digital meters. These meters help business owners keep track of their electricity costs, which is an important part of their operating expenses. By analyzing the consumption data, they can implement energy-saving measures to reduce costs and improve their bottom line.
In some industrial facilities, single phase digital meters may be used for sub-metering purposes. For example, in a large factory, individual departments or production lines may have their own single phase digital meters to measure their specific electricity consumption. This allows for better cost allocation and energy management within the facility.
Type | 1 Phase 2 Wire |
Connection | Bottom connected |
Voltage | AC220V,230V,240V |
Basic current(Ib) | 5A,10A,15A,20A,30A |
Max current(Imax) | 100A |
Starting current | 0.04%Ib |
Frequency | 50Hz,60Hz |
Accuracy | Class 1.0 |
Operating temperature | ~25℃~70℃ |
Display | Digital or Analog type |
Size | 110mm(width)*59mm(depth)*160mm(height) |
weight | 0.5kg |
Package | Inner box and carton box |
Customized support(OEM) | Yes |
Dimension
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A single phase digital meter is an advanced electrical measuring device designed to accurately measure the electrical energy consumption in a single-phase electrical system. It is used in residential, small commercial, and some industrial applications where single-phase power supply is utilized. Unlike traditional electromechanical meters that rely on moving parts to measure electricity usage, digital meters use solid-state electronic components and digital technology to provide precise and reliable readings.
(1) Accurate Measurement
Single phase digital meters are highly accurate in measuring electrical energy. They can precisely record both active energy (the actual energy consumed for useful work, measured in kilowatt-hours, kWh) and reactive energy (the energy that is stored and then released back into the electrical system, measured in kilovolt-ampere reactive hours, kvarh). The accuracy class of these meters can typically reach up to 0.5S or even higher, ensuring that consumers are billed accurately for the electricity they use.
(2) Digital Display
These meters are equipped with an easy-to-read digital display, usually an LCD (Liquid Crystal Display). The display can show various parameters such as the current energy consumption, power factor, voltage, current, and historical consumption data. This digital display makes it convenient for users to quickly understand their electricity usage patterns at a glance.
(3) Communication Capabilities
Many modern single phase digital meters come with communication interfaces, such as RS-485, power line communication (PLC), or wireless communication modules (e.g., ZigBee, LoRa, or cellular). These interfaces enable remote data collection and monitoring. Utility companies can remotely read the meter data without the need for physical access, which saves time and resources. Additionally, users can also access their electricity usage information through mobile apps or web portals, allowing them to manage and analyze their consumption more effectively.
(4) Load Profile Recording
Some advanced single phase digital meters have the ability to record load profiles. They can store data on electricity consumption at different time intervals (e.g., every 15 minutes or hourly). This data can be used to analyze the peak and off-peak usage periods, helping users optimize their electricity consumption and potentially reduce costs by shifting some of their usage to off-peak hours when electricity rates are lower.
(5) Tamper Detection
To ensure the integrity of the measurement and prevent unauthorized interference, single phase digital meters are often equipped with tamper detection mechanisms. These can detect if someone attempts to open the meter enclosure, manipulate the electrical connections, or interfere with the internal circuitry. When a tamper event is detected, the meter can record the event and send an alert to the utility company or the user, depending on the configuration.
The single phase digital meter works by first sampling the voltage and current signals in the electrical circuit. These signals are then converted into digital values using analog-to-digital converters (ADCs). The microcontroller inside the meter processes these digital values to calculate the electrical energy consumption based on the formula: Energy = Voltage × Current × Time. The microcontroller also performs other functions such as data storage, communication protocol handling, and display control.
In households, single phase digital meters are used to measure the electricity consumption of individual homes. Homeowners can use the meter data to monitor their energy usage, identify energy-efficient appliances, and make informed decisions about energy conservation. Utility companies can also use the data for accurate billing and to manage the distribution of electricity more effectively.
Small businesses such as shops, restaurants, and offices that operate on a single-phase power supply also use single phase digital meters. These meters help business owners keep track of their electricity costs, which is an important part of their operating expenses. By analyzing the consumption data, they can implement energy-saving measures to reduce costs and improve their bottom line.
In some industrial facilities, single phase digital meters may be used for sub-metering purposes. For example, in a large factory, individual departments or production lines may have their own single phase digital meters to measure their specific electricity consumption. This allows for better cost allocation and energy management within the facility.
Type | 1 Phase 2 Wire |
Connection | Bottom connected |
Voltage | AC220V,230V,240V |
Basic current(Ib) | 5A,10A,15A,20A,30A |
Max current(Imax) | 100A |
Starting current | 0.04%Ib |
Frequency | 50Hz,60Hz |
Accuracy | Class 1.0 |
Operating temperature | ~25℃~70℃ |
Display | Digital or Analog type |
Size | 110mm(width)*59mm(depth)*160mm(height) |
weight | 0.5kg |
Package | Inner box and carton box |
Customized support(OEM) | Yes |
Dimension
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