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| Customization: | Available |
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| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
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| Summary | ||
| Type | DIN RAIL | |
| Model | ME431 | |
| Current sensor type | Voltage output current transformer, Rogowski coil | |
| Characteristic | Up to 4 three-phase circuits can be monitored simultaneously, and direct access of Roche coil is supported | |
| Superiority | Suitable for wide current range, wire free measurement, and zero sequence detection and temperature detection versions | |
| Wiring system | 3P4W 4CT,3P4W 3CT,3P3W 3CT,3P3W 2CT,1P3W,1P2W | |
| Application area | Power analysis, power measurement | |
| Display screen | 2.0 inch TFT color LCD display with 320*240 resolution | |
| Weight | About 300g | |
| Size | L*W*D:9.0*8.9*6.6CM | |
| Color | White/black, Customizable | |
| Electric current measurement | ||
| Channel input voltage range | 0~900mVAC peak,636 mV RMS | |
| Measuring range | Different current sensors have different ranges | |
| Rogowski coil | 50mV/kA@50Hz(0-12000A),@60Hz(0-10000A) 85mV/kA@50Hz(0-7000A),@60Hz(0-6000A) 100mV/kA@50Hz(0-6000A),@60Hz(0-5000A)... |
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| Voltage type CT | 0~99999A | |
| Voltage measurement | ||
| Measuring range | 0~600VAC phase voltage | |
| Maximum measured value | 720VAC phase voltage (i.e. the maximum voltage between A voltage port and N voltage port is 720V) | |
| Digit signal | ||
| Relay output | 1 Road electromagnetic relay output, contact capacity: 3A 30V DC, 3A 250V AC | |
| Storage | ||
| Type | built-in eMMC | |
| Capacity | Default 8GB (expandable to 64G) | |
| Data export | Built-in FTP server, can use FTP software FileZilla to export data | |
| Communication | ||
| RS485 communication | One RS485 communication interface, Interface type: two line half duplex Communication rate: 2400bps~115200bps Protocol: Modbus-RTU |
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| Ethernet communication | The whole way is RJ45-Ethernet Protocol: Modbus-TCP |
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| Supply electricity | ||
| Power supply (Default 240V version) | ME431-Q4-2 | ME431-Q4-3 |
| 95~265VAC/110~260VDC,45~60Hz | 5~30VDC | |
| Maximum power dissipation | 5VA | |
| Instantaneous value | |
| Phase voltage | U1, U2, U3, AVG, U0 (zero sequence voltage) |
| Line voltage | U12,U23,U31,AVG |
| Current | I1, I2, I3, AVG, In, I0 (zero-sequence current) |
| Grid frequency | F1, F2, F3, ∑ (comprehensive) |
| Power factor PF | PF1, PF2, PF3, ∑ (comprehensive) |
| Base power factor DPF | DPF1, DPF2, DPF3, ∑ (comprehensive) |
| Active power | P1, P2, P3, ∑ (total) |
| Reactive power | Q1, Q2, Q3, ∑ (total) |
| Apparent output | S1, S2, S3, ∑ (total) |
| Electric energy | |
| Electrical energy | EP1, EP2, EP3, ∑ (total) When the total power reaches 1.0 xkWh, the power of each phase will be automatically cleared to zero |
| Negative active electrical energy | EP1, EP2, EP3, ∑ (total) When the total power reaches 1.0 xkWh, the power of each phase will be automatically cleared to zero |
| Negative reactive power energy | EQ1, EQ2, EQ3, ∑ (total) When the total power reaches 1.0 x kVarh, the power of each phase will be automatically cleared to zero |
| Harmonic wave | |
| Percentage of voltage harmonics | Total harmonic (U1, U2, U3), odd order total harmonic (U1, U2, U3), even order total harmonic (U1, U2, U3) Subharmonics 1-50 (U1, U2, U3) |
| Percentage of current Harmonics | Total harmonic (I1, I2, I3), odd order total harmonic (I1, I2, I3), even order total harmonic (I1, I2, I3), K coefficient (I1, I2, I3) Subharmonic 1-50 (I1, I2, I3) |
| Voltage harmonic value | Total harmonic (U1, U2, U3) Subharmonics 1-50 (U1, U2, U3) |
| Current harmonic value | Total harmonic (I1, I2, I3) Subharmonics 1-50 (I1, I2, I3) |
| Phase diagram | |
| Phase diagram | Phase diagram between voltage and current is shown |
| Phase sequence | Voltage, current |
| Voltage Angle | U1,U2,U3 |
| Current Angle | I1,I2,I3 |
| Voltage Angle | UI1,UI2,UI3 |
| Demand | |
| Demand | There is always the total reactive power, the total reactive power, the total apparent power |
| There is always a maximum power demand | Maximum demand and time |
| Maximum total active power demand | Maximum demand and time |
| The total view is the maximum power demand | Maximum demand and time |
| Degree of unbalance | |
| Voltage imbalance | Negative sequence, zero sequence |
| Current imbalance | Negative sequence, zero sequence |
| Maximum and minimum values | |
| Phase voltage | Each is related to the average |
| Line voltage | Each is related to the average |
| Current | Each is related to the average |
| Active power | The sum of all the parts |
| Reactive power | The sum of all the parts |
| Apparent output | The sum of all the parts |
| Accuracy of measurement | ||
| Current measurement accuracy | 0.1%+ current sensor accuracy | |
| Voltage measurement accuracy | ±0.2%(60V~600V AC) | |
| Grid frequency | ±0.01%(45~65Hz) | |
| Power factor | ±0.005 | |
| Active power and apparent power | IEC62053-22 Grade 0.5S | |
| Reactive power | IEC62053-21 Grade 1S | |
| Active power energy | IEC62053-22 Grade 0.5S | |
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