Tomzn Bi-Directional Active Energy Meter RS485 FM2s Phase Voltage Frequency

• Customization: Available
• Warranty: One Year
• Display: Digital
• Model NO.: DDS238-4 W 110/220V
• Usage: Watt-Hour Meter
• Type: Energy Meter
• Certification: CE
• Customized: Customized
• AC Voltage: 220V
• AC Current: 80A-99A
• Frequence: 50/60Hz
• Measure The Range of Electrical Energy: 999999.9
• Accuracy Level: Class 1
• Phase: Single Phase
• Transport Package: Carton
• Specification: 0.154kg 704cm3
• Trademark: TOMZN
• Origin: China

Product Description

DDS238-4 W Energy Meter (single phase 3-Wire, 110/220V, 10(100)A)

Key Features:

• LCD display with keypad navigation for step-by-step parameter viewing.

• Bi-directional active energy measurement (import/export).

• Real-time monitoring of phase voltage, active power, frequency, L1/L2 current, and energy data (total/import/export active energy + reactive energy).

• RS485 communication with MODBUS-RTU protocol (default: 9600bps, address 1-247, 8 data bits, no parity, 1 stop bit).

• Pulse output (optical coupling isolation) + LED indicator for energy consumption.

• Non-volatile memory stores energy data for >15 years without power.

• 35mm DIN rail mounting, bottom-terminal wiring.

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Technical Specifications:

1. Voltage:

   • Rated: 110/220V AC (L1-L2 range: 90-300V)

   • 3-wire system 

   • Current:

   • Rated: 10(100)A (overload capacity: 30×Imax for 0.01s).

   • Start current: 40mA.

2. Frequency: 50/60Hz ±10%.

3. Accuracy: Class 1% or 0.5%.

4. Isolation & Protection:

   • AC withstand voltage: 4000V/25mA for 60s.

   • IP rating: IP20.

5. Power Consumption: <2W/10VA.

6. Pulse Output: Passive, pulse width 80±5ms.

7. Standards Compliance: IEC62053-21, DIN 43880.

8. Operating Temperature: -25°C to +70°C.

9.  

Applications:

• Suitable for single-phase, bi-directional energy measurement in grid-tied systems (e.g., solar PV monitoring).

• Ideal for industrial/commercial use with RS485 data logging and MODBUS integration.