The MM3-6A Three-Phase Digital Multimeter, developed by Borna Electronics, is designed for accurate measurement and display of voltage, current, and frequency in three-phase electrical systems. The device features six independent displays, including three displays for voltage measurements and three displays for current or frequency indication, providing comprehensive real-time monitoring of power system parameters.
The MM3-6A incorporates True RMS measurement technology for both voltage and current signals, ensuring accurate readings in electrical networks containing harmonics and non-linear loads. The device also supports programmable CT ratios, making it suitable for a wide range of industrial power distribution and monitoring applications
Features
- High measurement accuracy
- Phase voltage measurement from 100 to 270 VAC
- Line voltage measurement from 170 to 470 VAC
- Frequency measurement from 45 to 55 Hz
- Selectable CT ratio from 5/5 to 8000/5
- True RMS voltage measurement
- True RMS current measurement
- Six independent digital displays
- Individual display of line currents or frequency
- Display of line-to-line and phase voltages
Technical Specifications
| Parameter | Specification |
| Input Voltage | 380 VAC, 4-wire system, ±20% |
| Network Frequency | 50 Hz ±5% |
| Voltage Measurement Range | 100–270 VAC (Phase), 170–470 VAC (Line) |
| Adjustable CT Ratio | From 5/5 to 8000/5 |
| Current Input Range | 40 mA to 5 AAC |
| Protection Degree | IP20 according to IEC 60529 |
| Operating Temperature | -10°C to +60°C |
| Relative Humidity | 15% to 85% |
| Mounting Method | Flush Mounted |