Core values
Diligence and excellence, sincerity and goodness
DTSU1900a is a multi-functional three-phase DIN Rail energy meter. It’s designed for metering management applications in public buildings, industrial plants, intelligent microgrids, and other fields. The product can be used in multi-tenant submetering systems and energy management. The DTSU1900a can measure electrical parameters, bidirectional energy metering, alarms, and harmonics analysis. It can be directly connected to 80 A.
| Parameters | Accuracy | Resolution | Range |
| Voltage | 0.2% | 0.1V | 175～265V |
| Current | 0.2% | 0.001A | 0.25～80 A |
| Active Power | 0.5% | 0.001kW | -60～60 kW |
| Reactive Power | 0.5% | 0.001 kvar | -60～60 kvar |
| Apparent Power | 0.5% | 0.001 VA | 0～60 kVA |
| Power Factor | 1% | 0.001 | -1.000～1.000 |
| Frequency | ±0.02 Hz | 0.01 Hz | 50/60 Hz(±5%) |
| Active Energy | 0.5S | 0.01 kWh | 0～9999999 kWh |
| Reactive Energy | 0.5% | 0.01 kvarh | 0～9999999 kvarh |
| Apparent Energy | 0.5% | 0.01 kVAh | 0～9999999 kVAh |
| Harmonics &THD | 2% | 0.01 | 0～600% |
| Unbalance | 2% | 0.1 | 0～100% |
|
Metering Voltage, Current Active power, Reactive Power, Apparent Power, Power Factor Frequency Load Nature Four Quadrant Power and Energy Energy Bi-Direction and Four Quadrant Energy Monthly Energy Record Energy Freeze Time of Use (TOU) Two TOU Settings can Automatically Switch at the Setting TOU, 4 Tariff, 14 Schedules |
Power quality Voltage Unbalance,Current Unbalance THD and Individual Harmonics to 31st Over/Under Limit Alarm Over or Under Setting Limit Power Measurement Parameters can be Set Alarm can Trigger the Relay Output Communication RS485 Port & Modbus RTU Protocol
|
