Single-phase electronic energy meters (Track-type 7P) (hereinafter referred to as "energy meters") are high-tech products manufactured using advanced ultra-low power consumption large-scale integrated circuit technology and SMT processes. The key components are selected from internationally renowned brands for long-life, enhancing product reliability and lifespan. Equipped with an LCD display and RS485 communication function, this meter boasts high measurement accuracy, stability, overload capacity, and reliability.
Product Features
Independent electrical energy metering, accuracy of 1.0 class;
Malicious load identification, effectively identifies违规 high-power appliances and purely resistive loads (such as hair dryers, rice cookers, quick-heaters, etc.).
Individual metering and control for circuits, power outlets, lighting, air conditioning, and bathrooms, etc.
Remote pre-paid, automatic disconnection upon non-payment, power is restored automatically after recharge.
Large-screen LCD display, showing real-time total electricity consumption, branch consumption, and remaining branch electricity, among other key data.
Equipped with an RS-485 communication interface, optocoupler isolation, effectively preventing destructive disturbances such as lightning and surge, significantly reducing maintenance difficulty.
Each circuit features timed on/off, automatic on/off according to a set schedule, and overload protection with automatic shutdown, as well as time-limited current limiting function.
Multi-functional electrical parameter collection, including voltage, current, power, power factor, and energy consumption.
Record reset, time synchronization, remote disconnection, and remote connection functionalities.
Independent CPU, independent metering unit, independent storage unit; parameters configured locally, capable of running independently.
Product Specifications
| Wiring method | Width | Channel | Voltage (V) | Maximum Current (A) | Meter Constant (imp/kWh) |
| Direct connection | 7P | 3 or 4 | 220 | 60 | 1600 |
Technical Specifications
Specs
Performance | Parameters | |
Operating Voltage | 80% to 115% UN (Ultimate Pressure: 400V AC, 1 hour) | |
Starting Current | <0.4% Ib (Grade 1), <0.5% Ib (Grade 2) | |
Electrical Pulse Test Output | The output is optically isolated passive, with a pulse width of 80ms ± 20ms. The characteristics of the output unit comply with the requirements of GB/T15284-2002. | |
Submersible | When the electric energy meter is subjected to a reference voltage of 115% and there is no current in the current circuit, the energy meter tests and outputs no more than one pulse within a time span of ten times the pulse duration under the reference voltage and start-up current. | |
Power Consumption | Voltage circuit | Under reference voltage, temperature, and frequency, the active and apparent power consumption of the voltage circuit of the electric energy meter does not exceed 1W, 8VA; under communication state, it does not exceed 3W, 12VA. |
Current circuit | Under basic current, reference temperature, and reference frequency, the apparent power consumption of the electricity meter's current circuit does not exceed 1VA. | |
Relative Humidity | Average Annual ≤ 75%, Maximum ≤ 95% | |
Operating Temperature | －25℃～＋60℃ | |
Extremal Operating Temperature | －40℃～＋70℃ | |
Storage and Transportation Temperature | －40℃～＋70℃ | |
Basic Error (not exceeding the limits specified in this table):
| Load Current | Power Factor | Basic Error (%) | |
| Grade 1.0 | 2.0 Level | ||
| 5%Ib≤I<10%Ib | 1 | ±1.5 | ±2.5 |
| 10%Ib≤I≤Imax | 1 | ±1.0 | ±2.0 |
| 10%Ib≤I<20%Ib | 0.5 (sensory) | ±1.5 | ±2.5 |
| 0.8 (capacitive) | ±1.5 | ||
| 20%Ib≤I≤Imax | 0.5 (Sensory) | ±1.0 | ±2.0 |
| 0.8 (capacitive) | ±1.0 | ||
Dimensions and wiring diagram
Dimensions
Wiring diagram
