1. Introduction
The Meatrol ME440 & MRC-36 is a versatile 3-phase 4-wire Power Quality Analyzer and Handheld Data Logger designed for comprehensive electrical parameter testing and power analysis. It provides real-time RMS values for all three phases and neutral, calculates power factor, real power, reactive power, and apparent power, and supports advanced features like harmonic analysis and 4G network connectivity for data transmission to the cloud. This manual provides essential information for the safe and effective operation of your device.
2. Safety Information
Safe operation can only be guaranteed if the transducer is used for its intended purpose and within the limits of the technical specifications. Always ensure you have the most up-to-date technical information, which can be found in the latest associated datasheet under www.rogowski.cn.
- Read all instructions carefully before use.
- Do not operate the device in wet conditions or near flammable materials.
- Ensure all connections are secure before applying power.
- Only use approved accessories and power adapters.
- Refer to qualified personnel for any maintenance or repair beyond basic user tasks.
3. Package Contents
The ME440 & MRC-36 Power Quality Analyzer typically includes the following components. Please verify all items are present upon unboxing.
- ME440 Main Unit (Handheld Power Quality Analyzer)
- Rogowski Coils (e.g., MRC-36, NRC-150, NRC-200 BNC terminals, quantity and type may vary by package)
- BNC terminal 333mV CTs (Current Transformers, quantity may vary by package)
- Voltage Probes / Test Leads
- 5V DC Power Supply Adapter
- USB Cable
- Protective Carrying Case (e.g., ME440BOX: Silver aluminum alloy, 445*175*380mm, 3.3kgs, IP67 protection)
- User Manual (this document)
4. Product Overview
The ME440 is a compact and robust handheld device designed for ease of use in various electrical environments.
4.1. Front Panel
The front panel features a 3.5-inch TFT screen display for clear data visualization and a user-friendly button interface for navigation and control.
4.2. Side and Top Panels
The side panel includes an RJ45 port for network connectivity, a 5V DC power input, and a USB port for data transfer. The top panel houses the input terminals for connecting current and voltage probes.
4.3. Control Buttons
The device features dedicated function keys (F1-F4), navigation arrows, ESC, INFO, and OK buttons for intuitive operation.
5. Specifications
| Feature | Specification |
|---|---|
| Product Name | ME440 Electrical Parameter Test Digital Power meter |
| Model Number | ME440 |
| Product Type | Network analyser Electric meter, Handheld Data logger, Power analyzer |
| DIY Supplies | Electrical |
| Origin | Mainland China (Shanghai, China) |
| Display Type | 3.5 inch TFT screen display (Analog and Digital) |
| Phase | Three Phase |
| Measuring Energy Range | from 1A to 999999A |
| Accuracy Class | 0.5 class |
| Operating Temperature | -25℃ to +55℃ (device), -30℃ to 80℃ (transducer) |
| Storage Temperature | -40℃ to 90℃ |
| Dimensions | L*W*D: 21.5*13*6 CM |
| Output Voltage | 5V DC power supply |
| Frequency | 45...65 Hz |
| Harmonic | Up to 51st harmonic |
| Communication | Modbus TCP/GPRS/WIFI/4G/CLOUD SEVER |
| Current Sensor Support | 4pcs BNC terminal 333mV CT / 4pcs BNC terminal Rogowski coil |
| Voltage Range | 600V |
| Storage (Memory) | 16GB Memory, USB DISK download (save intervals 1min default) |
| Power | 2*2900mAh PANASONIC lithium battery (working time: approx 10 hours) or 5V DC power supply (included adaptor) |
| Sampling Rate | 8k samples per second |
| Linearity | ±0.2% of reading |
| Bandwidth | 1Hz to 100kHz (-3dB) |
| Certificate | ISO9001 CE ROHS2.0, IP68 / CE /EMC |
6. Setup
Before operating the ME440, ensure all components are correctly connected.
6.1. Charging the Device
Connect the provided 5V DC power adapter to the device's power input port. The device can also operate on its internal 2*2900mAh Panasonic lithium batteries, providing approximately 10 hours of working time.
6.2. Connecting Rogowski Coils / CTs
The ME440 supports 4 BNC terminal 333mV CTs or 4 BNC terminal Rogowski coils. Connect the current sensors to the corresponding input terminals on the top of the device.
When connecting Rogowski coils, ensure the direction of the current is correctly observed for accurate measurements. The video above illustrates the proper connection method.
6.3. Connecting Voltage Probes
Connect the voltage probes to the appropriate voltage input terminals on the device. Ensure a secure connection for each phase and neutral.
7. Operating Instructions
The ME440 provides a user-friendly interface for monitoring and analyzing power quality.
7.1. Powering On/Off
Press and hold the power button (usually located near the navigation pad) to turn the device on or off.
7.2. Navigating the Menu
Use the arrow keys to navigate through menu options on the 3.5-inch TFT screen. The 'OK' button confirms selections, and 'ESC' returns to the previous screen or main display.
7.3. Real-time Measurement Display
The main screen displays real-time RMS values for voltage (UA, UB, UC, UN), current (IA, IB, IC, IN), and other key parameters. Use the function keys (F1-F4) to switch between different measurement views, such as Power, Energy, UTHD (Voltage Total Harmonic Distortion), and ITHD (Current Total Harmonic Distortion).
Access the data logging functions through the device menu. Refer to the on-screen prompts or the full datasheet for detailed instructions on configuring logging parameters.
7.4. Data Recording
The device features 16GB of internal memory for data logging. Data can be recorded at default intervals of 1 minute. The recorded data includes:
- Current Harmonic
- Voltage Harmonic
- Active Power (W), Reactive Power (Var), Apparent Power (Va) - for each phase and summary
- Active Energy (Wh), Reactive Energy (Varh), Apparent Energy (Vah) - for each phase and summary
- Total Active Power Demand (W) and Peak Demand with Date
- Total Reactive Power Demand (Var) and Peak Demand with Date
- Total Apparent Power Demand (Va) and Peak Demand with Date
Access the data logging functions through the device menu. Refer to the on-screen prompts or the full datasheet for detailed instructions on configuring logging parameters.
7.5. Network Connectivity (4G/GPRS/WIFI/Modbus TCP)
The ME440 supports various communication methods for data transmission, including 4G, GPRS, WIFI, and Modbus TCP. This allows for remote monitoring and data upload to cloud servers. Configuration details for network connectivity can be found in the device's settings menu.
8. Data Logging and Analysis
The ME440 functions as a robust data logger, capturing critical power quality data over extended periods.
8.1. Data Storage
All recorded data is stored in the device's 16GB internal memory. The default saving interval is 1 minute, but this can typically be adjusted in the device settings.
8.2. Data Download
Data can be downloaded from the device via the USB port to a USB disk or connected computer. For remote access and analysis, data can also be transmitted to a cloud server using the 4G/GPRS/WIFI/Modbus TCP communication features.
Specialized software may be required on your computer for detailed analysis of the logged data. Refer to the manufacturer's website or included software for installation and usage instructions.
9. Maintenance
Proper maintenance ensures the longevity and accuracy of your ME440 Power Quality Analyzer.
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Battery Care: Recharge the lithium batteries regularly, even if the device is not in frequent use, to maintain battery health. If storing for extended periods, charge the batteries to approximately 50% and store in a cool, dry place.
- Storage: Store the device and its accessories in the provided protective case when not in use to prevent damage.
- Firmware Updates: Periodically check the manufacturer's website (www.rogowski.cn) for any available firmware updates to ensure optimal performance and access to new features.
10. Troubleshooting
This section addresses common issues you might encounter with your ME440 Power Quality Analyzer.
10.1. Device Not Powering On
- Check Battery: Ensure the internal batteries are charged. Connect the device to the 5V DC power adapter.
- Power Button: Make sure you are pressing and holding the power button for a few seconds.
10.2. Inaccurate Readings
- Probe Connections: Verify that all Rogowski coils, CTs, and voltage probes are securely connected to the correct terminals.
- Current Direction: For Rogowski coils, ensure the current direction is correctly noted as shown in the setup video. Incorrect orientation can lead to negative or erroneous readings.
- Sensor Type: Confirm that the correct current sensor type (333mV CT or Rogowski coil) is selected in the device settings if applicable.
- Calibration: If persistent inaccuracies occur, the device may require professional calibration.
10.3. Data Transfer Issues
- USB Connection: Ensure the USB cable is properly connected to both the device and the computer/USB disk.
- Network Connectivity: For 4G/GPRS/WIFI/Cloud transfer, verify network settings and signal strength. Ensure the 4G module (if separate) is correctly installed and configured.
- Software: Ensure the correct analysis software and drivers are installed on your computer.
11. User Tips
- Rogowski Coil Direction: Always pay close attention to the current direction when installing Rogowski coils. A small arrow or indicator on the coil usually denotes the correct flow. Incorrect installation can lead to inverted readings.
- Battery Life: For prolonged field use, consider carrying a portable power bank compatible with the 5V DC input to extend operational time beyond the internal battery's 10 hours.
- Data Backup: Regularly download and back up your logged data to prevent loss, especially before performing firmware updates or extensive field work.
- Software Updates: Keep the accompanying analysis software on your computer updated to ensure compatibility with the latest device firmware and access to new features.
12. Warranty and Support
For warranty information, technical support, and access to the latest datasheets and software, please visit the official Meatrol Electrical website:
You may also contact the seller or manufacturer directly for assistance. For specific inquiries, you can reach out to Sales Manager Susan via WhatsApp at +86 156 1621 8084.
