Overview
In crowded distribution boxes or remote industrial sites, ADW300 delivers plug‑and‑play wireless energy monitoring.
It measures all three‑phase electrical parameters, 2‑31st harmonics, temperature, and residual current with Class 0.5S accuracy. Optional 4G, NB‑IoT, WiFi, LoRa, or LoRaWAN eliminate field cabling. Built‑in multi‑tariff, demand logging, and 12‑month historical storage support precise cost allocation and carbon accounting.
Ideal for plant sub‑metering, commercial HVAC monitoring, and old‑site retrofits, ADW300 reduces installation downtime and enables remote, real‑time power supervision – transforming passive meters into active energy intelligence.
Highlight
Flexible Wireless Communication
- 4G / WiFi / LoRaWAN / LoRa
- No cabling
- Direct to cloud
- Remote access
Comprehensive Measurement
- Voltage/Current
- Active/Reactive Power
- Class 0.5S accuracy
- Harmonics 2-31st
- Multi-tariff
Multiple Installation Options
- Direct connect
- Split-core CT
- High-current CT
- Rogowski coil
Safety & Smart O&M
- Temp monitoring
- Leakage detection
- Historical data
- Demand loggingWireless remote
Function
| Measurement | Metering | Others |
| 3-Phase Voltage/Current | Total Active Energy | Multi-tariff (8 schedules, 14 zones, 8 rates) |
| Line Voltage | Forward/Reverse Active Energy | Demand (Fwd/Rev Active/Reactive) |
| Active/Reactive/Apparent Power | Four-Quadrant Reactive Energy | Historical Energy (Last 12 Months) |
| Power Factor | A/B/C Phase Energy | Digital I/O |
| Frequency | Per Phase Active/Reactive | 4-Channel Temperature |
| Harmonics (2nd~31st) | Tariff Energy (Peak/Flat/Valley) | 1-Channel Residual Current |
| Voltage/Current Unbalance | Total Reactive/Inductive/Capacitive | Extremum Logging |
| Phase Angle | Wireless Communication |
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Specification
| Item | Parameter |
| Voltage Ratings | 3×57.7/100V, 3×220/380V, 3×230/400V, 3×380/660V, 3×100V, 3×380V, 3×660V |
| Current Ratings | ADW300: 0.01-0.05(6)A, 100mV, 333mV ADW300W: 0.01-0.05(6)A, 0.2-1(100)A ADW300-HJ: Multiple options up to 600A |
| Auxiliary Power | AC/DC 85-265V, AC/DC 110-415V, DC9-30V, DC24V, DC48V |
| Active Energy Accuracy | ADW300: Class C (GB/T 17215.321-2021), Class 0.5s (GB/T 17215.321-2008) ADW300W: Class B (GB/T 17215.321-2021), Class 1 (GB/T 17215.321-2008) |
| Temperature Measurement | Range -40℃~99℃, accuracy ±2℃ (within operating range) |
| Residual Current | Range 0~1000mA, scalable (1~60), alarm supported |
| Pulse Output | Active pulse, configurable pulse constant (6400imp/kWh, 400imp/kWh, etc.) |
| Communication | RS485, Infrared, 4G, NB-IoT, WiFi, Lora, LoraWAN |
| Digital I/O | Option K: 4DI+2DO; Option U: 2DI+2DO |
| Operating Temperature | -25℃ ~ +60℃ |
| Storage Temperature | -40℃ ~ +70℃ |
| Compliance | GB/T 17215.211-2021, GB/T 17215.321-2021, GB/T 17215.322-2008 |
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Optional Rogowski Coil
| Model | Current Range | Circumference | Inner Diameter |
| BR-60/90/150/200/300 | 1000A~8000A / 100mV | 200/300/500/650/1000mm | 60/90/150/200/300mm |
Optional Leakage Current ( L)
| Model | Applicable Current | Inner Diameter (mm) | Weight (kg) |
| AKH-0.66L45 | 16～100A | 45 | 0.18 |
| AKH-0.66L80 | 100～250A | 80 | 0.42 |
| AKH-0.66L100 | 250～400A | 100 | 0.50 |
| AKH-0.66L150 | 400～800A | 150 | 1.32 |
| AKH-0.66L200 | 800～1500A | 200 | 1.94 |
FAQ
ADW300 supports RS485, infrared, Lora, LoraWAN, NB-IoT, 4G, and WiFi. Among them, 4G, NB, and WiFi support MQTT, HTTP, TCP/IP transparent transmission, enabling direct connection to cloud platforms.
The residual current CT is connected to the “Leakage” terminals of the meter. Set the “Leakage range multiplier” in the menu according to the CT ratio (e.g., set multiplier 5 for 5A/1mA CT). The reading will automatically reflect the primary leakage current.
With optional 4G or WiFi communication, power-off reporting is supported (requires option U). When auxiliary power is lost, the built-in supercapacitor allows the meter to briefly operate and report the event via wireless network.
Depends on the frequency band and environment:
- Lora/LoraWAN: Up to 1~3km in open areas.
- 4G/NB-IoT: Dependent on carrier base station coverage.
- WiFi: Typically 50~100m indoors.
- On-site testing or consultation with our technical support is recommended.
Read register address 0x01BF (447) via communication; the returned signed integer indicates signal strength (higher value = stronger signal). The signal icon can also be viewed on the display.
With optional WiFi, a dedicated APP can be used for parameter configuration and data viewing (by connecting to the meter’s hotspot). The 4G version supports remote commissioning via the backend.
Summary
Combines 0.5S accuracy with multi-channel wireless connectivity. Offers harmonic analysis, leakage detection, and power-off reporting. Simplifies retrofit projects with split-core CT options, delivering reliable insights for industrial energy optimization.
