1. Introduzione e oltreview
The EASTRON SDM630MCT-Modbus Power Consumption Monitor is a robust device designed for precise monitoring and management of single and three-phase electrical usage. It features an easy-to-read digital backlit LCD display, ensuring clear data visibility in various lighting conditions. This meter facilitates seamless integration with other systems via its Modbus RS485 communication function.
The SDM630MCT-Modbus accurately measures a comprehensive range of electrical parameters, including voltage, frequency (Hz), current (A), power (KW/kVA/kVAr), and both import, export, and total energy (kWH/kVArh). This detailed measurement capability assists users in identifying areas for energy consumption reduction, leading to potential energy and cost savings.
Figura 1: Fronte view of the EASTRON SDM630MCT V2 Electricity Meter, showing the LCD display and control buttons.
2. Caratteristiche principali
- Versatile Network Compatibility: Supports single-phase or three-phase networks (3P4W, 3P3W, 1P2W).
- Current Transformer (CT) Input: Compatible with 1A or 5A current transformers.
- Misurazione completa: Measures kWh, kVArh, W, Var, VA, V, A, PF (Power Factor), THD (Total Harmonic Distortion), Hz, Max.DMD (Maximum Demand), Imp_kWh (Import kWh), Exp_kWh (Export kWh), and more.
- Misurazione bidirezionale: Capable of measuring both import and export for kW and kWh.
- Modbus RS485 Communication: Built-in Modbus RS485 RTU for integration with building management systems or data loggers.
- Pulsed Outputs: Includes 2 configurable pulsed outputs for energy indication (e.g., import/export/net kWh).
- Montaggio su guida DIN: Designed for easy installation on a standard 35mm DIN rail.
- Design compatto: Four-module wide housing, optimizing space in electrical panels.
- Display LCD retroilluminato: Digital display with backlight for clear readability day and night.
- User-Friendly Navigation: Easy menu navigation via intuitive buttons.
- MID Certified: Suitable for billing purposes (MID calibrated).
- Sealing Hole: Provides a safety seal option after installation to prevent tampring.
Figure 2: Key features and capabilities of the SDM630MCT Modbus meter, highlighting its multi-function power analysis.
Figura 3: primo piano view illustrating the Pulse LED, LCD Backlight Display, functional touch buttons, sealing hole, and 35mm DIN rail mounting.
3. Configurazione e installazione
The EASTRON SDM630MCT V2 is designed for DIN rail mounting within an electrical enclosure. Proper installation requires knowledge of electrical systems and adherence to local electrical codes. It is strongly recommended that installation be performed by a qualified electrician.
3.1 Current Transformer (CT) Connection
This meter requires external Current Transformers (CTs) for operation. CTs are essential for measuring current in high-amperage circuits and provide isolation between the measurement device and the main power lines. The meter supports 1A or 5A CT inputs. Ensure the CTs are correctly sized for your application and connected according to the wiring diagram provided in the full product manual.
CT-powered meters are widely used to monitor power grid operation. Multiple CTs may be installed for different applications, such as protective devices and revenue measurement, to ensure proper isolation and allow for CTs with varying characteristics (accuracy, overload capacity).
3.2 Modbus RS485 Connection
The Modbus RS485 interface allows the meter to communicate with other devices, such as data loggers, PLCs, or building management systems. Connect the RS485 A and B terminals to your Modbus network. Ensure proper polarity and termination resistors are used as per Modbus standards. The meter's Modbus address can typically be configured via the device's menu.
3.3 Installazione fisica
- Mount the meter securely on a standard 35mm DIN rail within an appropriate electrical enclosure.
- Collegare il volumetage inputs (L1, L2, L3, N) as per your single or three-phase system configuration.
- Connect the secondary windings of the Current Transformers to the meter's CT input terminals. Ensure correct phase and direction.
- Connect the Modbus RS485 communication lines (A and B) and any pulsed output lines if required.
- After installation, the sealing hole can be used to apply a safety seal, preventing unauthorized tampring.
Nota: Questo manuale fornisce una panoramica generaleview. For detailed wiring diagrams, safety precautions, and specific installation steps, please refer to the complete installation guide provided with your product or consult a qualified electrician.
4. Istruzioni per l'uso
The EASTRON SDM630MCT V2 features an intuitive interface for easy operation and data retrieval.
4.1 Display LCD e navigazione
The backlit LCD display provides real-time readings of various electrical parameters. Navigation through the display screens and configuration menus is done using the front panel buttons (typically 'M' for Menu/Mode, 'Up' and 'Down' arrows for navigation, and 'Enter' for selection).
4.2 Viewmisurazioni
Upon power-up, the meter typically displays the total energy (kWh). Use the navigation buttons to cycle through different measurement screens, which may include:
- Voltage (V) per phase and line-to-line
- Current (A) per phase
- Active Power (kW) per phase and total
- Reactive Power (kVAr) per phase and total
- Apparent Power (kVA) per phase and total
- Fattore di potenza (PF)
- Frequenza (Hz)
- Import/Export kWh and kVArh
- Maximum Demand (Max.DMD)
4.3 Configuration (Advanced Users)
The meter allows configuration of various settings, such as the CT ratio, Modbus address, baud rate, and pulse output parameters. Accessing and modifying these settings typically involves entering a password-protected menu. Refer to the detailed product manual for specific instructions on menu navigation and parameter configuration.
Per esempioample, some users have reported that when connecting to specific inverters (e.g., Growatt), the Modbus address may need to be set to '2' for proper communication.
Nota: Incorrect configuration can lead to inaccurate readings or communication issues. Only modify settings if you are familiar with the required parameters.
5. Manutenzione
The EASTRON SDM630MCT V2 is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure optimal performance:
- Pulizia: Mantenere il display del misuratore e casing pulire con un panno morbido e asciutto. Evitare detergenti abrasivi o solventi.
- Connessioni: Periodically inspect all wiring connections (voltage, CT, Modbus, pulse outputs) to ensure they are secure and free from corrosion. Loose connections can lead to inaccurate readings or intermittent operation.
- Ambiente: Ensure the meter is operating within its specified environmental conditions (temperature, humidity) to prevent damage and ensure accuracy.
- Aggiornamenti del firmware: While not typically user-serviceable, check with EASTRON support for any available firmware updates that might improve performance or address known issues.
Avvertimento: Always disconnect power to the meter and associated circuits before performing any inspection or maintenance to prevent electric shock.
6. Risoluzione Dei Problemi
This section provides solutions to common issues you might encounter with your EASTRON SDM630MCT V2 meter. If the problem persists, contact technical support.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Meter display is blank or not powering on. | No power supply to the meter; incorrect wiring; internal fault. |
|
| Readings are inaccurate or zero. | Incorrect CT wiring (polarity, ratio); incorrect meter configuration; faulty CT. |
|
| Modbus communication failure. | Incorrect Modbus address; incorrect baud rate; wiring issues (A/B swapped, no termination); incompatible inverter/device. |
|
| Meter not responding to button presses. | Temporary software glitch; physical button damage. |
|
Disclaimer: This troubleshooting guide covers common issues. For complex problems or if you are unsure, always consult a qualified professional or EASTRON technical support.
7. Specifiche
Below are the technical specifications for the EASTRON SDM630MCT V2 Electricity Meter.
Figure 4: Comprehensive technical specification table for the SDM630MCT V2 meter.
| Categoria | Parametro | Valore |
|---|---|---|
| Specificazione | volume nominaletage (non) | 3x230/400V AC |
| Volume operativotage | 80% - 120% of Un | |
| Insulation capabilities - AC voltage resistere | 4KV per 1 minuto | |
| Insulation capabilities - Impulse voltage resistere | 6KV - 1.2µS | |
| Rated current (Ib) | 5A CT or 333mV CT input | |
| Intervallo di corrente operativa | 0.4% Ib - Imax | |
| Resistenza alla sovracorrente | 20 Imax per 0.01 s | |
| Gamma di frequenza operativa | 50 o 60 Hz | |
| Power consumption per phase | ≤ 2W/10VA | |
| Uscita impulsiva 1 | Configurabile | |
| Uscita impulsiva 2 | 3200 Imp/kWh | |
| Display | LCD | |
| Lettura massima | 999999.9 kWh/kVArh | |
| Criteri di rendimento | Umidità di esercizio | ≤ 90% |
| Umidità di stoccaggio | ≤ 95% | |
| Temperatura di esercizio | -25°C - +55°C | |
| Temperatura di conservazione | -40°C - +70°C | |
| Temperatura di riferimento | 23°C ± 2°C | |
| Standard internazionale | IEC 62053-21 / EN50470-1/3 | |
| Classe di precisione | Class 1 / Class B | |
| Ambientale | Categoria di installazione | CAT III |
| Ambiente meccanico | M1 | |
| Ambiente elettromagnetico | E2 | |
| Grado di inquinamento | 2 | |
| Protezione contro la penetrazione di polvere e acqua | IP51 (interno) | |
| Contatore con custodia isolante di classe protettiva | II | |
| Compatibilità elettromagnetica | Scariche elettrostatiche | 8KV contact / 15KV air gap |
| Radiated & conducted emissions | La norma EN 55022 | |
| Precisione | Voltage, corrente | 1.0 % or 0.5% option available |
| Frequenza | 0.2% della media frequenza | |
| Fattore di potenza | 1% of Unity (0.01) | |
| Active power / Apparent power | ±1% della portata massima | |
| Potenza reattiva | ±1% della portata massima | |
| Energia reattiva (kVArh) | Classe 2 | |
| Energia attiva (kWh) | Classe 1 | |
| Dimensioni del prodotto | 10.3 x 11 x 8 cm; 290 grammi | |
| Modbus | Tipo di autobus | RS485 (semi-duplex) |
| Protocollo | Modbus-RTU | |
| Velocità in baud | 2400/4800/9600/19200/38400bps | |
| Intervallo di indirizzi | 1-247 | |
| Max. Bus loading | 64 pezzi | |
| Distanza di comunicazione | 1000 metri | |
| Parità | PARI/DISPARI/NESSUNO | |
| Bit di dati | 8 | |
| Smettila un po ' | 1 |
Figure 5: Dimensional drawing of the EASTRON SDM630MCT V2, showing height, width, and depth.
- Dimensioni del prodotto: 10.3 x 11 x 8 cm; 290 grammi
- Numero modello articolo: SDM630MCT-MODBUS-MID
- Produttore: ESTRON
8. Garanzia e supporto
EASTRON is committed to providing high-quality electrical measurement instruments. While specific warranty details are not provided in this document, standard manufacturer warranties typically cover defects in materials and workmanship for a defined period from the date of purchase.
For warranty claims, technical assistance, or to obtain the full product documentation (including detailed wiring diagrams and advanced configuration guides), please contact EASTRON customer support or your authorized reseller. Many users have reported positive experiences with EASTRON's responsiveness in providing necessary documentation and support.
You can typically find contact information on the official EASTRON websito o tramite la documentazione di acquisto.
Figure 6: EASTRON's commitment to quality and reliability, as evidenced by certifications like the SGS EU Type Examination Certificate.
Figure 7: EASTRON's dedication to innovation and quality in the development of intelligent meters.
