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E-mail
2285106056@qq.com
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Phone
17511629777
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Address
No. 225 Xinggong Road, Tinglin Town, Jinshan District, Shanghai
Shanghai Sannanhong Electric Co., Ltd
2285106056@qq.com
17511629777
No. 225 Xinggong Road, Tinglin Town, Jinshan District, Shanghai
1Single phase 4G rail type multifunctional prepaid energy meterOverview
The 4G multifunctional power meter (rail type) is a new generation of miniature energy meters launched by our company based on years of experience in meter design.
The electric energy meter adopts LCD display and has the function of outputting electric energy pulses; The data exchange between 4G wireless and cloud based upper computer greatly facilitates the automation management of electricity usage.
This electric energy meter has the advantages of small size, high accuracy, good reliability, and easy installation. Its performance indicators meet the technical requirements of international GB/T17215, GB/T17883, and DL/T614 for electric energy meters in the power industry.
IISingle phase 4G rail type multifunctional prepaid energy meterProduct Specifications
| Product Model | accuracy class | rated voltage | current specification | pulse constant |
| 4P (Single phase) |
0.5S | 220V | 1.5(6)A | 6400imp/kW-h |
| 5(20)A | 1600imp/kW-h | |||
| 10(40)A | ||||
| 20(80)A | ||||
| 7P-1 (Three items) |
0.5S | 3X220/380V | 3X1.5(6)A | 6400imp/kW-h |
| 3X5(20)A | 400imp/kW-h | |||
| 3X10(40)A | ||||
| 3X20(80)A |
3、 Technical parameters
project |
technical indicators |
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4P |
7P-1 |
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accuracy class |
Active power: Level 1.0, reactive power: Level 2.0 |
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rated voltage |
220V |
3X220/380V |
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current specification |
1.5(6)A、5(20)A、10(40)A、20(80)A |
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Working Voltage |
Normal operating voltage range: 0.9~1.1Un Extreme operating voltage range: 0.7~1.2Un |
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Reference frequency |
50Hz or 60Hz |
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starting current |
Direct access |
0.004Ib |
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Connected via CT |
0.002In |
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power consumption |
Voltage line |
≤ 5VA/phase |
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Current line |
<4VA/phase |
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Voltage pulse output |
Pulse width: 80ms ± 20ms; optocoupler isolation, open collector output |
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Digital Communication |
4G, RS485 interface (three-phase), MODBUS-RTU (other protocols can be customized) |
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Clock error and deviation |
≤0.5s/d |
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temperature range |
Normal operating temperature: -10 ℃~+45 ℃; Extreme working temperature: -20 ℃~+55 ℃; Storage temperature: -40 ℃~+70 ℃ |
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relative humidity |
≤ 95% (no condensation) |
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Mean time between failures (h) |
≥50000 |
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Dimensions (length x width x height) |
126×91×74(mm) |
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multi-rate |
14 rate time period setting, 4 time period tables |
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*Note: High end instruments are equipped with RS485 digital communication, power pulse and reactive pulse, multi rate hourly billing, and second pulse clock calibration. The standard instrument is equipped with RS485 digital communication, with both active and reactive power pulses. Economic instruments are equipped with electric energy pulses and reactive power pulses.
4、 Appearance and dimensions

5、 Function Description
Measurement:
The three-phase rail meter can measure active energy in both forward and reverse directions, as well as input and output reactive energy. It can also measure the voltage, current, total active power, reactive power, power factor, and grid frequency of phases A, B, and C. It also has the function of recording maximum demand.
Clock and Time Rate:
The clock error is within 0.5S/day, and it has automatic switching functions for calendar, timing, and leap year.
Display:
The economic type only displays the total active power.
The standard model has data wheel display and data key display functions. Voltage, current, power factor, frequency, active power, reactive power, positive and negative active energy, and positive and negative reactive energy can be queried through the buttons on the panel. If no button is pressed within 8 seconds, the wheel display state will automatically switch, and the wheel display time is 4 seconds.
In addition to all the functions of the standard model, the high-end model can also display the maximum demand of U, I, P, Q, as well as the peak, peak, flat, and valley total power of reactive energy in both directions.
● Reactive power pulse output, used for meter calibration and remote power collection. Passive optoelectronic isolation output port, pulse width: 80ms ± 20ms.
Communication interface: RS485, 4G wireless communication
Communication protocol: MODBUS RTU (other customizable)
Communication speed: 9600bps (default), 38400bps, 19200bps, 4800bps, 2400bps, 1200bps optional
Programming function:
● Electricity meter address setting
● Time and date settings
● Rate trial order setting (multiple rate)
● Reset the battery base to zero setting
Meter reading and energy management functions:
By using RS485 to form remote automatic meter reading, intelligent management of electrical energy can be achieved.