ADDRESS:2F Innovation Factory, FeiyueRoad, high-tech Development Zone, Jinan, PR China 


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Three Phase Monitoring & Protection Meter
  • Measuring three phase voltage, current, line voltage, zero-sequence current, zero-sequence voltage, active power, reactive power, apparent power, power factor, frequency, Active energy, reactive energy, Voltage unbalance, current unbalance

  • Demand analysis

  • 1* programmable energy pulse output

  • Multi-tariff (optional), available for querying past 12 months' energy

  • Analysis of current/voltage harmonic (2-31times)

  • Communication: Modbus RTU via rs485

  • Accuracy: Active energy accuracy: 0.5S, Voltage & Current accuracy: 0.2%

  • Off-limit alarm and alarm event record   

  • SOE records accurate to milliseconds  

  • Motor protection

  • Current & power indicator diagram (cycle self-adjusting)

  • Synchronous indicator diagram Tripping: Undervoltage tripping; Open-phase tripping;Voltage unbalance tripping; current unbalance tripping; Over-voltage/ over-current tripping;

  • Digital input & output: 3 DI; 2 DO

  • Power supply: AC: 85-265V; DC: 85-300V

  • CT/PT connection

  • Display: LCD screen 

  • Standard din rail installation

  • Dimensions: 132cm*80cm*72cm







It is especially applied in oil fields and capable of metering all the electric parameters of oil extraction machines. It not only indicate diagram of current and power be drawn according to commands, but also motor protection function.     

Solid Core Current Transformer

Split Core Current Transformer

Current Transformers

Get a special offer when you add optional split core or flexible CT form factors to your purchase

The LoRa Data Transmission Terminal is universal communication interactive equipment, which is designed and manufactured based on LoRa RF chip. It integrates two interfaces of industrial standard RS485 and supports a variety of protocols to realize data transmission between wired and wireless devices. It can be widely applied in the IOT, centralized metering and industrial control etc..

The Energy Management System acquires real-time energy consumption data from the acquisition terminal then calculates and stores the data from all sorts (i.e. water, electricity, gas, heating), subareas, sub items and sub time with mathematical method of summarizing and splitting etc. Then checking system, which accurately and quantitatively measures unit energy consumption, can be provided by monitoring and diagnosing the data. Thus energy saving management can be realized.

Energy management software

We will install, wire and test your power and energy meter for you.

Technical Parameters-DZS500
Accuracy ClassVoltage: 0.2; Current: 0.2; Frequency: 0.05 Hz; Power Factor:   0.5
Active Power: 0.5; Reactive Power: 0.5; Apparent Power: 0.5
Active Energy: 0.5S/1;  Reactive energy: 2
InputRated ValueVoltage: 100V/ 400V; Current: 1A/ 5A
OverloadVoltage: Sustained Overload: 1.2   times of the rated value
               Momentary Overload: 2   times of the rated value
Current: Sustained Overload: 1.2 times of the rated value
               Momentary Overload: 10   times of the rated value
Functional ModulePulse Output 1

1* RS485; Modbus RTU Communication Protocol;

Baud Rate:   1200-19200bps

DO2 DO (AC250V/5A, DC30V/5A)
Power SupplyWorking RangeAC: 85-265V; DC: 85-300V
Consumption< 3W
Working ConditionTemperatureOperating: -20℃~+70℃; Storage: -40℃~+80℃
HumidityRelative Humidity: ≤93% (place without corrosive gas)
Altitude≤ 4000m
InstallationStandard Din rail installation



Din Rail Energy Meter-Heyuan Intelligence







Circuits Measured

single phase

three phase

9*three phase/

27*single phase

/Mixed Circuits

three phase

three phase                    



Modbus RTU


Modbus RTU


Modbus RTU


Modbus RTU

LoRa 433mhz


Modbus RTU

LoRa Data Transmission Terminal

We will install, wire and test your power and energy meter for you.