It adopts RMS (Root Mean Square) measurement for three-phase voltage, three-phase current, three-phase active power, combined active power, and line voltage frequency.
Featuring high accuracy, imported chips, and stable quality, the meters support the following functions:
2-channel relay alarm;
3-channel transmission output;
Communication function;
3PH True RMS Multifunctional Power Meter Features
Digital filtering to eliminate interference and prevent non-critical value jumping;
Capable of 2-channel relay alarm;
3-channel transmission output;
Communication function;
RMS (Root Mean Square) measurement for three-phase voltage, three-phase current, three-phase active power, combined active power, and line voltage frequency.
Input
Voltage compatible input: 0-400V, extended range 0-50KV (requires voltage transformer), voltage transformation ratio can be set arbitrarily;
Current compatible input: 0-5A, extended range 0-9999A (requires current transformer), current transformation ratio can be set arbitrarily;
Output
4-20mA, 1-5V, 0-20mA, 0-10mA, 0-10V, 0-5V
Communication
Optically isolated RS-485 communication interface
Alarm
2-channel relay alarm
Other Detailed Parameters
| Parameter | Specification |
| Measurement Accuracy | ±0.005 (±0.003) |
| Response Frequency | 40Hz~70Hz |
| Display Range | 0.000-9999-99.99 |
| Operating Power Supply | AC85～260V, 3W |
| Operating Environment | 0～＋50℃; ≤85％RH |
| Relay Contact Capacity | AC220V/5A |
| Relay Contact Lifespan | 100,000 operations |
| Transmission Output Accuracy | 16-bit, ±0.002 |
| Model Selection & Dimensions | Model: Overall Dimensions; Mounting Hole Dimensions DK6404: 96×96×112mm; 92×92mm |
| Model Selection Example | Example: A user needs to measure (three-phase three-wire system) three-phase AC voltage 0～380V, rated current 50A, three-phase current and power. Requirements include: upper limit alarm when measured voltage is higher than 400V, lower limit alarm when measured voltage is lower than 300V, AC220V system power supply. The three-phase voltage average (0~380V), three-phase current average (0~50A), and total active power (0~40kW) need to be transmitted as 0-5V, 4-20mA, and 0-20mA outputs respectively, with data transmitted to the upper computer. Selected instrument model: DK6404-R-R-0V5-4MA20-0MA20-S |
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