Manuale utente del contatore di energia bidirezionale trifase Acrel DTSD1352

1. Introduzione

This manual provides comprehensive instructions for the installation, operation, and maintenance of the Acrel DTSD1352 Three Phase Bidirectional Energy Meter. This device is designed for accurate measurement of three-phase energy consumption and generation, featuring RS485 communication for integration into monitoring systems. Please read this manual thoroughly before installation and operation to ensure safe and efficient use.

2. Informazioni sulla sicurezza

AVVERTENZA: rischio di scosse elettriche!

• L'installazione e la manutenzione devono essere eseguite solo da elettricisti qualificati.
• Ensure all power is disconnected before installing or servicing the meter.
• Non toccare i terminali sotto tensione.
• Verify correct wiring connections to prevent damage to the meter or electrical system.
• The meter must be installed in a dry, well-ventilated area, free from excessive dust, corrosive gases, and direct sunlight.

3. Prodotto finitoview

The Acrel DTSD1352 is a compact and robust three-phase multi-function energy meter. It features a clear LCD display for real-time data, intuitive control buttons, and various connection terminals.

Figura 3.1: Davanti view of the DTSD1352 meter. This image displays the main LCD screen showing power readings (e.g., 0.00 kW), the "SET" button, and three orange arrow buttons for navigation. Terminal blocks are visible at the top and bottom for electrical connections.

Figura 3.2: Angolato view of the DTSD1352 meter. This perspective highlights the compact design and the various input/output terminals on the top and bottom, as well as the side labeling for model identification.

4. Specifiche

The following table outlines the key technical specifications of the Acrel DTSD1352 energy meter. For detailed information, refer to the product datasheet.

Figura 4.1: Detailed technical specifications. This image presents a table covering various parameters such as reference voltage (3*57.7/100V, 3*220/380V, 3*380V), reference frequency (50Hz), maximum current (6A, 80A), accuracy (Class 0.5S), communication interface (RS485, MODBUS-RTU), dimensions (127*88*70 mm), and environmental conditions (operating temperature -25~55℃, humidity ≤95%).

5. Installazione e cablaggio

Proper installation and wiring are critical for the accurate and safe operation of the DTSD1352 meter. Refer to the diagrams below for connection methods.

Figura 5.1: Wiring diagrams. This image illustrates two primary wiring methods: a 3-phase 4-wire (3P4W) direct connection where power lines (A, B, C, N) connect directly to the meter, and a connection via Current Transformers (CTs) for higher current applications, showing the CTs connected to the respective phase lines and then to the meter.

5.1 Direct Connection (3P4W)

For direct connection, ensure the phase lines (A, B, C) and neutral (N) are connected to the corresponding terminals on the meter. This method is typically used for lower current applications where the meter can directly handle the load current.

• Connect Phase A to terminal 'A'.
• Connect Phase B to terminal 'B'.
• Connect Phase C to terminal 'C'.
• Connect Neutral to terminal 'N'.
• Assicurarsi che tutti i collegamenti siano sicuri e adeguatamente isolati.

5.2 Connection via Current Transformers (CTs)

For higher current applications, the DTSD1352 meter can be connected via external Current Transformers (CTs). This method scales down the current to a measurable level for the meter.

• Install the CTs on each phase line (A, B, C).
• Connect the secondary windings of the CTs to the corresponding current input terminals (e.g., Ia*, Ia, Ib*, Ib, Ic*, Ic) on the meter.
• Ensure the polarity of the CTs is correct (P1/K to the source side, P2/L to the load side, and S1/S2 to the meter). Incorrect polarity will result in inaccurate readings.
• Collegare il volumetage inputs (Ua, Ub, Uc, N) directly from the respective phases and neutral to the meter.
• It is recommended to install a fuse on the voltage input lines for protection.

Important: Always ensure the CT secondary circuit is closed before applying power to the primary circuit. Never open the secondary circuit of a live CT.

6. Funzionamento

Once installed and powered, the DTSD1352 meter will automatically begin measuring. The LCD display shows various parameters, which can be navigated using the control buttons.

6.1 Navigazione del display

• Schermo LCD: Shows real-time measurements such as voltage, current, active power, reactive power, power factor, frequency, and total energy (kWh).
• "SET" Button: Used to enter the parameter setting mode or confirm selections.
• Arrow Buttons (Left, Right, Up, Down): Used to navigate through different display screens or adjust parameter values in setting mode.

6.2 Reading Energy Data

Press the arrow buttons to cycle through the various measurement screens. Common readings include:

• Total Active Energy (kWh)
• Energia attiva diretta (kWh)
• Energia attiva inversa (kWh)
• Voltage (V) per phase
• Current (A) per phase
• Active Power (kW) per phase and total
• Reactive Power (kVar) per phase and total
• Fattore di potenza (PF)
• Frequenza (Hz)

6.3 Comunicazione RS485

The meter supports RS485 communication with MODBUS-RTU protocol. This allows for remote reading of meter data and configuration. Refer to the MODBUS communication protocol document for detailed register addresses and commands.

7. Manutenzione

The DTSD1352 energy meter is designed for long-term, reliable operation with minimal maintenance. However, periodic checks are recommended.

• Pulizia: Mantenere il misuratore pulito e privo di polvere. Utilizzare un panno morbido e asciutto per la pulizia. Non utilizzare detergenti abrasivi o solventi.
• Connessioni: Periodically check all wiring connections to ensure they are tight and secure. Loose connections can lead to inaccurate readings or overheating.
• Ambiente: Assicurarsi che l'ambiente operativo rimanga entro gli intervalli di temperatura e umidità specificati.
• Calibrazione: Il misuratore è calibrato in fabbrica. Se si sospettano imprecisioni, contattare personale di assistenza qualificato per una nuova calibrazione.

8. Risoluzione Dei Problemi

This section provides solutions to common issues you might encounter with the DTSD1352 meter.

9. Garanzia e supporto

This product is manufactured by TGLGTQPX and sold under the Acrel brand. For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact your vendor. General support for the Acrel DTSD1352 meter can be obtained through the manufacturer's official channels or your authorized distributor.

For technical assistance, troubleshooting beyond this manual, or spare parts, please contact:

• Produttore: TGLGTQPX
• Marchio del prodotto: Acre
• Modello: DTSD1352
• (Contact information such as website or email would typically be provided here by the manufacturer.)