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Made in China Digital Harmonic Meter Suppliers Wholesale Price Multifunction Power Meter

FOB Reference Price:Get Latest Price
US $120 - 160 / Set | 10 Set/Sets (Min. Order)
Supply Ability:
5000 Set/Sets per Month
Seller Support:
Payment protection
On-time shipment
Product quality protection
Place of Origin:
Hunan, China (Mainland)
Brand Name:
Model Number:
Measuring Current Range:
Measuring Voltage Range:
Accuracy Class:
Operating Temperature:
-25 to +70 Celsius
Key words:
Made in China Wholesale Price Multifunction Power Meter
large-screen dot matrix LCD
power supply:
AC/ DC: Rated 220V(-20% to +20%)
Communication Interface:
Interface Type: RS-485, 2-wire
Communication speed:
Switch Input:
24V DC
Relay Output:
5A, AC250V
Communication protocol:
Additional function:
Power quality inspection
Packaging & Delivery
Packaging Details:
Individual packaging sizes:120mm*115mm*110mm
Seaworthy standard packaging
Delivery Detail:
Shipped in 7 days after payment


Product Description


General Introduction

  LCD 3 phase Multifunction Harmonic Meter is adopted industrial-grade microprocessor as the core, adopted modern digital signal processing technology, integrated functions of electricity quantity telesignalling, telemetry, remote control and transmitter, etc into one. It is designed directly against primary return circuit, can accomplish monitoring function of primary return circuit. It is widely used in industry, commerce, civilian power system and substations.

Reference Pictures

Mounting Dimensions & Wiring Diagram

96 Square (Frame Size: 96*96*96mm    Install Size: 91.00*91.00mm, Optional Install Size:88*88mm)

42 Square (Frame Size: 120*120*96mm  Install Size:111.00*111.00mm, Optional Install Size:108.*108mm)

Technical Parameters 

 1. Basic Function



Input and Output

Three-phase Voltage Input(V1,V2,V3)

Three-phase Current Input (I1, I2, I3)

Three Ways Relay Outputs (DO1 ~ DO3)

Four digital inputs (DI1 to DI4)

Analog output (AO)

Electric energy pulse output

Measure Parameter

Voltage measurement, current measurement, power measurement, frequency, power Total Harmonic Distortion of  Three-phase Voltage and Current

The harmonic ratio of three-phase voltage and current(2 ~ 31 times)

Three-phase voltage unbalance ,Three-phase current unbalance

Real-time recorded wave of Three-phase current and voltage

 Event Record

64 events, resolution 1ms

Over-limited Monitoring

Monitors the voltage, current, power, etc., can trigger relay action

Communication Mode

1 RS-485 interface, MODBUS protocol, communication speeds up to 9600bps

NOTE:the specific function refer to the meter of it model.

2.  Environment Condition

a) Operation Temperature:-25℃~+70℃

b) Atmospheric Pressure:70kPa~106kPa

c) Relative Humidity: 5% ~ 95% (non-condensing)

3.  Rated Parameter

a) Power supply

• DC: Rated 220V, Voltage tolerance -20% to +20%

• AC: Rated 220V, Voltage tolerance -20% to +20%

b)  AC Input

· Phase voltage: Rated 57.7V, 220V or 400V

· Phase current: Rated 5A or 1A

c)  Analog Output(AO)

· Rated 20mA, output range 4-24mA (1.2 times overload)

· Load capacity 500Ω

d)  Switch Input

· 24V DC excitation self-excitation

· Front debounce time20ms

e)  Relay Output

·Electromagnetic relay

· Contact capacity: 5A, AC250V

f)  Power Consumption

• AC current circuit: Less than 0.2A / phase (rated at 5A)

                 Less than 0.04A / phase (rated at 1A)

· AC voltage circuit: less than 0.5VA / phase (nominal time)

· Device Power circuit: less than 3W

g)  Overload Capability

•  AC current circuit: Rated current 1.2 times, continuous operation

                            Rated current20 times, allowing 1s

· AC voltage circuit: Rated voltage 1.2 times, continuous duty

                            Rated voltage2 times , allowing 10s

h)  Communication Interface

· Interface Type: RS-485, 2-wire

· Work: Half-duplex

·Communication speed:


Communication protocol: MODBUS

4.  Basic Measurement 









Phase Voltage


Line Voltage












Active Power


Reactive Power


Apparent Power





Power Factor

Power Factor


Nature of the Load



Frequency (A Phase)






Total Harmonic Distortion of Voltage



Total Harmonic Distortion of Current



Current 2-31 Harmonic Ratio



Voltage 2-31 Harmonic Ratio



   Table 3.1 describes the sign symbol representation of the power.The symbol of power factor is the same as the symbol of active power.


6. Power Quality


Parameter Name

Voltage Unbalance


 Current Unbalance


Frequency Deviation


Voltage Qualification Rate

3phase Qualification Rate

Voltage sequence components

Positive sequence component of voltage, negative sequence component of voltage, zero-sequence component voltage

Current Sequence Components

Positive sequence component of current, negative sequence component of current, zero-sequence component of current

Packaging & Shipping

Export Package

1 pc/inner box, 40pcs/carton.

Shipping Time

After payment done, goods will be shipped to you within 5~30 days according to quantity

Delivery Method

1. Shipment  by Sea, by Air or Courier (DHL/FEDEX/TNT/UPS/EMS/CHINA POST MAIL) 

2. As per clients request.


Company Information

  Zhuzhou Sanda Electron Manufacturing Co.,Ltd is a modernized high-tech enterprise engages in the research, produce and supplier of intelligent instruments for electric power grid and switch cabinet.

   We design,produce and sell:
1. Multi-function electric meter, multi-function network meter, multi-function harmonic meter, digital ammeter, digital voltmeter.
2.Switchgear intelligent operating devices, switch state indicator.
3.Over voltage protective device.
4.Temperature and humidity controller, dry-type transformer temperature and humidity controller.

   Widely use in electricity facilities worldwide:
• Oil & chemical, mechanical
• Construction and are applicable for terminal body.
• High voltage switch cabinet, substation.
• Low voltage box
• Low-voltage AC power distributing cabinet
• Low voltage cabinet.


Our Services

 Cooperate with Sanda, enjoy safe electricity.


Factory direct supply, all goods can be customized.

OEM/ODM is available.

Application Fields.

  Application Fields


Intelligent Digital frequency meter is widely used in chemical industry, cement industry, metallurgy industry, construction industry, and power industry. Up to now, we have bid for many engineering projects. Certified quality guards safe usage.

Sales Network



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China (Mainland) | Manufacturer
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Supplier Assessments:
2 Transactions 2,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.