1. Úvod a konecview
The EARU DDS661 Single Phase Digital Energy Meter is designed for measuring active energy consumption in single-phase AC power systems. This compact, Din Rail mountable device provides accurate readings of various electrical parameters, including kilowatt-hours (kWh), voltage, current, power, power factor, and frequency. It features an LCD backlight display for clear visibility and offers data retention during power outages. Models are available with and without RS485 (Modbus-RTU) communication capabilities for advanced monitoring.
Video: Produkt skončilview, assembly, and display demonstration.
2. Bezpečnostní informace
- Instalaci a údržbu by měl provádět pouze kvalifikovaný personál.
- Ensure the power supply is disconnected before any installation, wiring, or maintenance work to prevent electric shock.
- Ověřte, že svtage and current ratings of the meter match your electrical system specifications.
- Do not operate the meter in environments exceeding its specified operating temperature and humidity ranges.
- Avoid exposing the meter to direct sunlight, rain, or excessive dust.
- Ujistěte se, že všechny kabelové spoje jsou bezpečné a řádně izolované.
3. Vlastnosti produktu
- Podsvícený LCD displej: Clear and easy-to-read display of electrical parameters.
- Multi-parameter Measurement: Measures Positive Power Consumption, Reverse Power Consumption, Total Power, Instantaneous Power, Power Factor, Frequency, Voltage a Aktuální.
- Vysoká přesnost: Achieves First Level Accuracy for reliable measurements.
- Uchovávání dat: Meter readings are saved and not zeroed out in the event of a power failure, preventing data measurement errors.
- Din Rail Installation: Standard 35MM Din Rail mounting for easy integration into distribution boxes.
- Optional RS485 Communication: Available with Modbus-RTU protocol for remote data acquisition and system integration.
- Odolná konstrukce: Made from ABS material, certified with CE and IP51 rating for dust and water protection.
- Forward and Reverse Measurement: Capable of measuring energy flow in both directions.
Image: Illustrating the meter's first-level accuracy.
Image: Demonstrating data retention after a power outage.
4. Specifikace
Image: Detailed dimensions and key product parameters.
| Parametr | Hodnota |
|---|---|
| Číslo modelu | DDS661 |
| Název značky | EARU |
| Rozměry (D*Š*V) | 117 mm * 18 mm * 65 mm |
| Fáze | Jednofázový |
| Třída přesnosti | 1.0 |
| Jmenovitý objemtage | AC230V 50Hz/60Hz, AC110V 60Hz |
| Provozní svtage Dosah | 161-300VAC |
| Maximální jmenovitý proud | 60A |
| Operating Current Range | 60A |
| AC Withstand Voltage | 2KV po dobu 1 minuty |
| Overcurrent Withstand | 960A po dobu 0.01s |
| Vnitřní spotřeba energie | <2W/10VA |
| Constant Pulse | 1000imp / kWh |
| Typ zobrazení | LCD |
| Provozní teplota | -10 ℃ až +50 ℃ |
| Skladovací teplota | -30°C až +70°C |
| Provozní vlhkost | ≤ 75 % |
| Skladovací vlhkost | ≤ 95 % |
| Materiál | ABS |
| Osvědčení | CE |
| Hodnocení IP | IP51 |
| Baterie je součástí dodávky | Žádný |
| Vysoce znepokojená chemikálie | Žádný |
5. Instalace a zapojení
The DDS661 energy meter is designed for 35MM standard Din Rail installation. Ensure the mounting location is dry, well-ventilated, and free from strong electromagnetic interference. Professional installation is highly recommended.
5.1 Montáž
- Attach the meter to a standard 35MM Din Rail in your electrical distribution box.
- Ensure it is securely clipped into place.
Obrázek: Přample of DDS661 installed on a 35MM Din Rail.
5.2 Schéma zapojení
Refer to the wiring diagram below for correct connection. Pay close attention to the input (IN) and output (OUT) terminals for Live (L) and Neutral (N) wires. For models with RS485, ensure the RS485+ (24) and RS485- (23) terminals are connected correctly for communication.
Image: Wiring diagram for DDS661, showing L/N input/output, pulse output, and RS485 connections.
- Terminals (1) and (4): Input for Live (L) and Neutral (N) respectively.
- Terminals (3) and (6): Output for Live (L) and Neutral (N) respectively.
- Terminals (20) and (21): Pulse output contact for external pulse counting.
- Terminals (24) and (23): RS485+ and RS485- for Modbus-RTU communication (only on RS485 models).
Ujistěte se, že všechna připojení jsou pevná a bezpečná, abyste předešli uvolněným kontaktům a potenciálnímu nebezpečí.
6. Návod k obsluze
Once properly installed and powered, the DDS661 meter will automatically begin measuring and displaying electrical parameters on its LCD screen.
6.1 Režimy zobrazení
The meter cycles through various display modes automatically, showing different parameters. You can typically press a button (if present, usually labeled 'SET' or similar) to manually cycle through the displays or reset certain values (e.g., temporary power consumption). Refer to the specific model's front panel for button locations.
Image: Display parameters for DDS661 with RS485, including Positive/Reverse/Total Power, Power, Power Factor, Frequency, Voltage a Aktuální.
Image: Display parameters for DDS661 without RS485, showing similar measurements.
6.2 Reading Parameters
- kWh: Kilowatt-hour (energy consumption). This is the primary measurement.
- V: svtage (in Volts).
- A: Aktuální (v Amperes).
- W: Instantaneous Power (in Watts).
- Hz: Frequency (in Hertz).
- PF: Účiník.
- Celkový výkon: Kumulovaná spotřeba energie.
- Positive Power Consumption: Energy consumed from the grid.
- Reverse Power Consumption: Energy fed back to the grid (if applicable).
6.3 Uchovávání údajů
The meter is designed to retain all accumulated energy data even if power is lost. This ensures continuous and accurate tracking of consumption without manual resets after outages.
7. Údržba
- Čištění: K čištění vnějšího povrchu měřiče používejte měkký, suchý hadřík. Nepoužívejte abrazivní čisticí prostředky ani rozpouštědla.
- Kontrola připojení: Pravidelně kontrolujte elektrické spoje, abyste se ujistili, že jsou pevné a bez koroze.
- Podmínky prostředí: Zajistěte, aby provozní prostředí zůstalo v rámci stanovených limitů teploty a vlhkosti.
- Žádné díly opravitelné uživatelem: Do not attempt to open or repair the meter yourself. Refer to qualified service personnel for any issues.
8. Řešení problémů
- Bez displeje:
- Check if the power supply is connected correctly and active.
- Ověřte vstupní objemtage je ve jmenovitém rozsahu.
- Nesprávné čtení:
- Ensure wiring is correct according to the diagram (L and N are not swapped).
- Confirm the load is connected properly.
- Zkontrolujte, zda nejsou uvolněná spojení.
- RS485 Communication Issues (for RS485 models):
- Verify RS485+ and RS485- connections are correct.
- Check communication settings (baud rate, parity, data bits, stop bits) on your Modbus master device.
- Consult the manufacturer for the specific Modbus register map if needed.
9. Uživatelské tipy
- Data Persistence: Many users appreciate that the meter's readings are saved even after a power cut, allowing for accurate long-term consumption tracking without loss of data.
- Integrace RS485: For advanced users looking to integrate the meter into a home automation or energy management system, understanding the Modbus-RTU protocol and obtaining the device's register map from the manufacturer is crucial for successful communication.
- Jasný displej: The backlit LCD display is generally well-regarded for its readability, even in low-light conditions.
10. Záruka a podpora
Pro informace o záruce, technickou podporu nebo servisní dotazy se prosím obraťte na svého prodejce nebo přímo na výrobce. Uschovejte si účtenku jako doklad o koupi.
