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Jsy-mk-227 single-phase electric energy measurement module can be widely used in energy-saving transformation, charging pile, power, communication, railway, transportation, environmental protection, petrochemical, steel and other industries to monitor the current and power consumption of DC equipment.
1. DC input
1) Voltage range: 500V, 750V, 1000V, etc;
2) Current range: 50a, 100A, 150A, etc;
3) Signal processing: special measurement chip and 24 bit AD sampling;
4) Overload capacity: 1.2 times the range is sustainable; The instantaneous (<20ms) current is 5 times, the voltage is 1.2 times, and the range is not damaged;
5) Input impedance: voltage channel > 1 K Ω / v.
2. communication interface
1) Interface type: 485 interface;
2) Communication protocol: MODBUS-RTU protocol;
3) Data format: can be set by software, "n, 8,1", "E, 8,1", "O, 8,1", "n, 8,2";
4) Communication rate: baud rate can be set at 1200, 2400, 4800, 9600bps; The default is 9600bps.
3. measurement output data
See the list of mdobus data registers for multiple electrical parameters of voltage, current, power and electric energy.
4. measurement accuracy
Voltage, current and power: less than ± 1.0%; Electric energy level 1.
5. isolation
The tested power supply and the power supply are isolated from each other; Isolation withstand voltage 4000vdc;
6. power supply
1) DC single power supply 5V power supply, power consumption <80ma.
7. working environment
1) Working temperature: -30 ~ +75 ℃; Storage temperature: -40 ~ +85 ℃;
2) Relative humidity: 5 ~ 95%, no condensation (at 40 ℃);
3) Altitude: 0 ~ 3000 meters;
4) Environment: places without explosion, corrosive gas and conductive dust, and places without significant shaking, vibration and impact;
8. Installation method: screw hole fixation;
9. Module size: 65*43mm
