Description
Overview
GAOTek WiFi Smart Meter is a wireless energy meter that has multiple built-in communication modules designed for different situations when paired with an IoT energy management system or other demands for remote connections. Meanwhile, it can provide various extraction function modules and measure various electrical parameters to meet different requests from customers. Furthermore, as proof of its quality GAOTek WiFi Smart Meter strictly complies with the standards of IEC 62052-11, IEC 62053-22, and LVD.
Features
- 4G LTE
- NB-IoT
- WiFi (2.4GHz&5GHz)
- LoRa
- RS485 (MODBUS-RTU)
- Paired with IoT Energy Monitoring System
Technical Specifications
| Measurement （Standard） |
Three-phase AC kWh, kVarh, Active Power, Reactive Power, Quadrant Reactive Power Energy, Current, Voltage, Voltage&Current Unbalance, Power Factor, Apparent Power, Frequency, Harmonic (2~31st&THD) |
|
| Measurement (Optional) |
Temperature Measurement:4-channel (A, B, C, N) Cable Temperature Monitoring; Thermistor: NTC; Range: -40 °F to 210.2 °F (-40 ℃ to +99 ℃); Accuracy: -28.4 °F, +35.6 °F (±2 ℃) | |
| Residual Current Measurement: 1-channel Residual Current Monitoring (Need to be paired with Residual Current Transformers) | ||
| Communication (Standard) |
RS485 Port with Modbus-RTU protocol – 1 start bit,8 data bits,1 stop bit, no parity; Baud Rate 1200 bps to 38400 bps, etc. Infrared Communication – Constant Baud Rate 1200 bps |
|
| Communication (Optional) |
4G LTE – Normal Communication Module Support: LTE-FDD: B1 / B3 / B5 / B8; LTE-TDD: B 34 /B 38/B 39/B 40/B 41 4G LTE – Global Communication Module Support: LTE-FDD: B1/ B3 / B5 / B7 / B8 / B20 /B 28; LTE-TDD: B 38/B 40/B 41 |
|
| Display (Standard) |
LCD Display and LED Indicator | |
| HMI (Standard) |
Keypads Programming: Setting of CT/PT Ratio, Communication, Phase Wiring, etc. | |
| Software (Standard) |
Adjustment Software: Setting of Data Upload Interval, Wi-Fi configuration (Account Password), Server Address, Port, etc. | |
| Alarm Function (Standard) |
Under voltage, Overvoltage, Undercurrent, Overcurrent, Underload, Overload, Communication Disconnection, etc. | |
| I/O Function (Optional) |
4-channel or 2-channel DI (Digital Input) 2-channel DO (Digital Output) |
|
| Parameter | Description Value | |
| Voltage Input |
Rated Voltage | 3×380 Vac to 456 Vac L-L or 3×660 Vac to 792 Vac L-L (via direct connection) 3×100 Vac to 120 Vac L-L (via PTs) |
| Reference Frequency | 45 Hz to 65 Hz | |
| Power Consumption | ＜0.5 VA (each Phase) | |
| Current Input |
Rated Current | 3×1(6) An AC (via CTs) |
| Starting Current | 1% Ib (Class 0.5); 4% Ib(Class 1) | |
| Power Consumption | ＜1VA (each Phase) | |
| Phase Wiring |
3P4W | 3-phase 4-wire |
| 3P3W | 3-phase 3-wire | |
| Auxiliary Power Supply |
Voltage Range | 85 Vac to 265 Vac |
| Power Consumption | ＜2 W | |
| Measurement Performance |
Standard | IEC 62053-22:2003; IEC 62053-21:2003 |
| kWh Accuracy | Class 0.5 S | |
| Pulse | Width of Pulse | 80 ms ±20 ms |
| Pulse Constant | 6400 imp/kWh; 400 imp/kWh | |
| Temperature | Operating Temperature: -4 °F to 131 °F ( -20 ℃ to +55 ℃); Storage Temperature: -40 °F to 158 °F (-40 °C to +70 °C) | |
| Humidity | ≤95% RH, no condensation, without corrosive gas | |
| Altitude | ≤6561.68 ft (≤2000 m) | |