Adjustable multimeter with 71.5 × 61.5 mm LCD display.

The EM-07 is a three-phase digital multimeter designed for measuring, monitoring, and protecting three-phase electrical installations. It displays key network parameters and includes configurable protection functions, a relay output, and RS485 Modbus RTU communication.
Its large LCD screen displays phase and phase-to-phase voltages, currents, apparent power, and frequency for each phase. In addition to instantaneous values, it allows you to view minimum, maximum, and average values, as well as current and apparent power demand values.
The EM-07 incorporates various configurable protection functions to monitor the installation against abnormal voltage, current, and frequency values, as well as phase imbalances. Voltage protection can be configured to operate between phase-to-neutral (LN) or phase-to-phase (LL).

Main features

• Digital multimeter for three-phase networks
• Measurement of voltages V1, V2, V3, V12, V23 and V31
• Measurement of currents I1, I2 and I3
• Apparent power measurement S1, S2 and S3
• Frequency measurement F1, F2 and F3
• Display of minimum, maximum, and average values
• Visualization of current demand and apparent power
• High and low voltage protection
• High and low current protection
• High and low frequency protection
• Protection against voltage asymmetry
• Protection against current imbalance
• Selectable phase-to-neutral (LN) / phase-to-phase (LL) protection
• Indication of phase sequence
• Alarm/protection relay output
• RS485 Modbus RTU Communication
• Configurable communication speed between 1,200 and 38,400 bps
• Password-protected settings menu
• Possibility of deleting demand values
• Configurable current transformer ratio
• Configurable voltage transformer ratio
• 71.5 × 61.5 mm LCD screen

Measurement and monitoring

The EM-07 allows you to view the instantaneous values of voltage, current, apparent power, and frequency for all three phases. It also records the minimum, maximum, and average values of voltage and frequency, as well as the minimum, maximum, average, and demand values of current and apparent power.

Protection functions

The protection limits can be configured directly on the device. When an error condition occurs, the output relay opens, the screen backlight flashes, and the display shows the corresponding error code, facilitating the identification of the fault.
Thanks to the combination of measurement, protection and Modbus communication, the EM-07 is especially suitable for electrical panels, industrial installations, electrical distribution systems and energy monitoring applications, allowing the control of the main parameters of a three-phase network to be centralized in a single device.