TM-7900 series Three-phase AC/DC Power Meter
TM-7900 series power meter uses an STM32 core with FPGA and multi-channel AD sampling for precise three-phase measurements. Measures voltage, current, power, power factor, frequency, and energy with support for multiple wiring configurations.Features bright 4-window LED display, serial communication, digital alarms, and durable multi-function design for industrial use.
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| TM-7900 series is Three-phase power meter with STM32 controller as the core, FPGA and multi-channel synchronization sampling AD technology, are widely used in the measurement of voltage, current, power, power factor, frequency, electrical energy, time and other electrical parameters of three-phase electrical equipment, support 1P2W/1P3W/3P3W/3V3A/3P4W wire connections, suitable for power parameter measurement of 3 phase appliances, power supply, motor and inverter, etc. The four-window LED highlight display is adopted, the keys are simple and fast, and serial communication and parameters are also available . The functions of digital alarm, voltage/electrorheological ratio setting, etc. are multi-purpose, accurate and durable. |
Features
Basic accuracy reaches 0.1%.
Measures current up to 50A direct with a minimum power resolution of 0.01W.
Ratio function sensor supports common I-I current transformers.
Threshold alarm: Set the total three-phase voltage, current, power limit and measurement threshold values. Automatic high-low limit judgment with alarm.
Interface function
The three-phase power analyzer can support a variety of wiring methods, including 1P2W, 1P3W, 3P3W, 3V3A, 3P4W, etc. Users can configure the multi-channel mode according to the requirements to meet the measurement of voltage, current, power, efficiency and other parameters of specific loads
| Wiring Method | Channel 1 | Channel 2 | Channel 3 |
| 1P2W single-phase two-wire | 1P2W | 1P2W | 1P2W |
| 1P3W single-phase three-wire | 1P3W | ||
| 3P3W three-phase three-wire | 3P3W | ||
| 3V3A three-phase three-wire | 3V3A | ||
| 3P4W three-phase four-phase | 3P4W |
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