Panel multimeter with Modbus RTU communication DMM-5T-3

Advanced electrical network parameter analyzer

DMM-5T-3 is a three-phase network parameter analyzer designed for both industrial and commercial applications. The device offers comprehensive measurement and analysis of power quality, enabling optimization of consumption and identification of potential problems in the electrical installation. Thanks to Modbus RTU communication, data from the analyzer can be easily integrated with monitoring and control systems.

Versatile measurements for professionals and users

The DMM-5T-3 analyzer measures key network parameters such as voltage, current, active and reactive power, power factor (cos φ), and electrical energy in four quadrants. Additionally, the device is able to analyze voltage and current harmonics up to the 55th harmonic, allowing for an accurate assessment of power quality and detection of disturbances. Measurement of power for individual phases as well as total active and reactive power allows for precise load analysis.

Functionality and safety

DMM-5T-3 has two built-in adjustable relay outputs and one digital input, enabling remote control and alarm signaling in case of exceeding set values. Event logs record information about failures or irregularities in the network (high/low voltage, power outage, voltage/current asymmetry), which facilitates troubleshooting. Real-time clock and the ability to set date and time allow for precise recording of measurement data. The device menu is password protected, preventing unauthorized access to settings.

• Modbus RTU communication: Enables integration with SCADA and BMS systems.
• 4-quadrant energy measurement: Accurate billing of energy consumption both drawn from and supplied to the grid.
• Harmonic analysis: Identification of disturbances in the network and assessment of power quality.
• Event logs: Recording of the history of failures and irregularities in the network.
• Relay outputs: Possibility of remote load control or alarm signaling.
• LCD display: A readable Design Glass LCD display with dimensions of 71.5x61.5 mm ensures easy reading of measurement data.
• 3P4W connection support: Versatility of application in various three-phase network configurations.

The device finds its application in monitoring energy consumption in commercial buildings, industrial plants and energy management systems. Mounting is done in an opening with dimensions of 91x91 mm and the power supply is 85÷240 V AC. The RS-485 port enables communication at transmission speeds: 2400/4800/9600/19200/38400 bps with various parity and stop bit settings (none, even, odd; 1 or 2).