Introduction
For optimal performance and safe operation, please read this instruction manual thoroughly before using your EARU DDS Energy Meter. Keep this manual for future reference.
Important Safety Instructions
WARNING:
Designed for precise energy tracking, this unit uses digital readouts for clear data presentation. This product is not explosion-proof. Do not install or operate in environments with flammable gases, liquids, or explosives.
Safety Information
- Please use this product in accordance with the instructions in this manual.
- Do not disassemble this product by yourself.
- Pay attention to the rated voltage for use.
Product Features and Functions
The EARU DDS Energy Meter Series provides comprehensive monitoring of your electrical system. It features a high-definition LCD display for clear data presentation.
Key functions include:
- Voltage measurement
- Current measurement
- Power measurement
- Frequency measurement
- Power Factor measurement
- History Total kWh recording
- Temporary kWh recording
- Forwarder kWh recording
- Reverse kWh recording
- Temporary kWh Data Zero Clearing function
Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | AC110V/220V |
| Frequency | 50Hz/60Hz |
| Measurement Accuracy | ±1%/Class 1 |
| Data Fresh Speed | 1 Time/S |
| Power Consumption | <2W |
| Installation | 35MM Din Rail |
| Working Temperature | -10℃~+55℃ |
| Storage Temperature | -40℃~+70℃ |
| Working Humidity | 5%~95%RH |
| Display Type | LCD |
| Max kWh Record | 999999kWh |
| Display Working Time | Always On |
| Load Capacity | 0.05Ib-Imax |
| Standard | IEC62053-21 & GB/T17215.321-2008 |
| Certification | CE |
| Dimensions | 84.5*44.5*66mm |
| Battery Included | No |
| High-concerned chemical | None |
Installation
The DDS Energy Meter is designed for 35MM Din Rail installation.
Wiring Instructions
Ensure all wiring is performed by a qualified electrician and adheres to local electrical codes. Turn off power before installation.
- DDS669-A (Direct Wiring Type): Connect the Live (L) and Neutral (N) wires directly to the meter's input terminals as shown in the diagram.
- DDS669-B (External CT Type): For this model, an external Current Transformer (CT) is used. Connect the Live (L) and Neutral (N) wires to the meter. The CT clamp should be placed around the Live wire.
- DDS669-C (Built-in CT Type): This model features a built-in CT. Connect the Live (L) and Neutral (N) wires to the meter's terminals.
CT Clamp Direction (DDS669-B Only)
To measure energy consumption, the arrow on the CT should follow the direction of the current flow. In this case, the power will be positive, and the energy consumption will be accumulated. To measure energy production, the arrow on the CT should be opposite to the direction of the current flow. In this case, the power will be negative, and the energy generation will be accumulated.
CT Dimensions for DDS669-B:
| Mold | Φ | A | B | C | D | E |
|---|---|---|---|---|---|---|
| 80A | 10mm | 29mm | 41mm | / | 14mm | 26mm |
| 120A | 16mm | 39mm | 46mm | 38mm | 20mm | 31mm |
| 200A | 24mm | 54mm | 66mm | 43mm | 23mm | 35mm |
Operation
The DDS Energy Meter features an intuitive interface for viewing and managing data.
Navigating the Display
- Single Click: Press the button once to cycle through different display modes, such as Forward Energy Consumption, Total Energy Consumption, and Reverse Energy Consumption.
- Double Click: Press the button twice to switch between specific readings or modes.
- Click and Hold (5 Seconds): To clear temporary energy consumption data (Temporare Energy Consumption Data Zero Clearing), click and hold the button for 5 seconds. The meter will display 'CAL - 1' to confirm the clearing process.
The meter also includes a 'Snap Pin' (used for zeroing power consumption) and Dust Plugs for protection.
Maintenance
To ensure the longevity and accuracy of your DDS Energy Meter, follow these general maintenance guidelines:
- Keep the device clean and free from dust and moisture.
- Avoid exposing the meter to extreme temperatures or direct sunlight for prolonged periods.
- Do not use harsh chemicals or abrasive cleaners on the display or casing.
- Regularly check wiring connections to ensure they are secure.
Troubleshooting
If you encounter issues with your DDS Energy Meter, consider the following general troubleshooting steps:
- No Display/Power: Check the power supply connections and ensure the rated voltage is correctly applied.
- Incorrect Readings: Verify all wiring connections, especially for CT clamps (DDS669-B), ensuring correct polarity and direction. Confirm the meter is set to the appropriate voltage and frequency.
- Data Not Updating: Ensure the meter is receiving a stable power supply.
If problems persist, consult a qualified electrician or contact customer support.
Additional Resources
A detailed user manual in PDF format is available for download: User manual (PDF)
Video: Product demonstration and setup overview.
Warranty and Support
This product is covered by the manufacturer's standard warranty. For warranty claims, technical support, or service inquiries, please refer to the contact information provided with your purchase documentation or visit the official EARU website.
