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3 Phase 4G Wireless Smart Meter Optional RS485 WiFi Solar Power Meter
JSY-MK-339 3 phase smart meter developed by JSY Technology using microelectronics technology and special large-scale integrated circuit, digital sampling processing technology, SMT process and other advanced technologies, with completely independent intellectual property rights. The technical performance fully meets the relevant technical requirements of the 0.5S level three-phase active energy meter in IEC 62053-21 national standard. It can directly and accurately measure the voltage, current, power, power factor and electricity quantity etc. in three-phase AC power grid with a rated frequency of 50HZ or 60HZ. Built-in 4G communication module, 1 RS485 interface and MODBUS-RTU protocol, easy to connect with various AMR systems. It has the characteristics of good reliability, small size, light weight, beautiful appearance, and easy installation.
JSY-MK-339 can be widely used in energy-saving renovation, power, communication, railway, transportation, environmental protection, petrochemical, steel and other industries to monitor the current and energy consumption of AC equipment.
Features:
1. Collect three-phase AC electrical parameters such as voltage, current, power and energy etc.
2. Adopting dedicated measurement chips and effective value measuring methods, with high measurement accuracy.
3. Built in 4G communication module, 1 RS485 interface.
4. With 1 residual current measurement.
5. Standard Modbus-RTU communication protocol, with good compatibility and is convenient for programming.
6. With dot matrix LCD display.
7. Wide working voltage AC80-240V.
8. Using industrial grade chips, built-in watchdog, and equipped with comprehensive lightning protection anti-interference measures to ensure reliability.
9. High isolation voltage, withstand voltage up to AC: 2000V.
10. Through-core current transformer or split-core transformer with different specifications optional, easy to use.
Specifications:
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Product Model |
JSY-MK-339 |
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Three-phase AC Input |
Voltage Measuring Range |
100V, 220V, 380V etc. optional. |
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Current Measuring Range |
5A, 50A, 100A, 200A etc. and external split-core current transformer optional. |
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Signal Processing |
Using dedicated measuring chip with 24 bit AD sampling. |
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Overload Capacity |
1.2 times measuring range is sustainable; Instantaneous(<200mS) current 5 times, voltage 2 times, measuring range will not be damaged. |
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Input Impedance |
Voltage channel＞1KΩ/V, current channel ≤ 100mΩ. |
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Switching Quantity Output |
1 relay, open circuit output. Voltage, current overload alarm protection output function |
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Communication Interface |
Wireless communication 4G, CAT1. Supports LTE-TDD and LTE-FDD. |
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Interface Type |
1 RS-485 interface |
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Communication Protocol |
MODBUS-RTU protocol |
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Data Format |
Can be set by software, "n, 8,1", "e, 8,1", "o, 8,1", "n, 8,2" |
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Communication Rate |
The Baud of RS-485 communication interface can be set to 1200, 2400, 4800, 9600Bps, factory default Baud 9600bps, data "n, 8,1" format. |
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Communication Data |
Multiple electrical parameters such as voltage, current, power and energy, as shown in the Mdobus data log list. |
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Measurement Accuracy |
Voltage, current, power: ± 1.0%; Active power level 1 |
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Isolation |
RS-485 interface, isolated from AC power supply, voltage input, and current input. Isolation withstand voltage 2000VDC. |
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Power Supply |
Optional 100V, 220V, 380V, voltage line 100V-380V |
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When powered by AC220V, the peak voltage shall not exceed 265V. Typical power consumption: ≤ 2W |
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Working Environment |
Working Temperature |
-20~60 ℃ |
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Storage Temperature |
-40~85 ℃ |
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Relative Humidity |
5-95%, no condensation (at 40 ℃) |
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Altitude |
0-3000 meters |
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Environment |
No explosions, corrosive gases or conductive dust, no significant shaking, vibration or impact. |
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Temperature Drift |
≤ 100ppm/℃ |
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Installation Method |
4P Din rail |
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Module Size |
70x90x57mm |
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Shenzhen JSY Technology Co., Ltd.
Power Metering and EV Charging Module &Solution OEM /ODM Expert