Lightweight Digital Power Meter Remote Control With Relay Alarm
1. Quick Overview:
Series of WD-9Q3 Single-phase Power Meters are used for measuring
and monitoring the power distribution system. This series of meter
can measure the voltage, current, active power, reactive power,
apparent power, power factor, frequency, active energy, reactive
energy and some other power parameters.
It combines the measurement, the analysis and the operation
together, makes the information become clearer, and the operation
2. Technical Parameters:
|Input||Nominal value||Voltage AC:100V,220V,380V; Current AC: 1A/5A|
|Overload||Continuous: 1.2 time/1s; Instant: 10 time/1s|
|Function||Display||LED or LCD|
|Alarm||One channel passive relay; Contact capacity: 3A/30VDC,3A/250VAC,
high, low, unbalance alarm etc.|
|Analog||DC4-20mA, DC0-20mA(Load<500Ω), DC0-5V(Load >1kΩ)|
|Input: 2-4 channel dry contacts, power inside, optocoupler
|Output: 2 switch output,normal open contact of relay|
|Contact capacity: 3A/30VDC,3A/250VDC|
|Power Supply||Voltage Range||AC/DC85-270V|
|Environment||Temperature||Opertation: -25-55℃, Storage: -20℃-75℃|
|Humidity||≤93RH, no condensation, without corrosive|
- Measurement parameter:3 phase voltage,current,active power,reactive
power,appearant power,frequency,power factor,4-quadrant converter electric energy and bidirectional kwh ect.
- Two loop on-off input/output,with remote control and measure
- Isolation for input and output.
- Ture effective value measure and display.
- Optional 4-20mA transmit output for voltage,current,active
power,reactive power,frequency,power factor.
- With 2 loops energy pulse output, 2 programable alarms
- With RS485 communication, Modbus Rtu
- With harmonics measure and display function for voltage and
- Optional multi-tariff rate function and demand , maximum demand
4. Typical Wiring Diagram:
The meter may be used as a data acquisition unit for an Intelligent
Power Distribution Automation System or a Plant Automation System
that integrates process instrument and electrical requirements. The
available serial communication option allows for fast and simple
integration with these systems. The Meter is also suitable for any
AC applications where there is considerable distortion of current
waveform from nonlinear loads such as a VVVF Inverter, Ballasts and
Switching Power Supply.
6. Our Company:
Wei Dian Union(Hubei) Technology Co.,Ltd. Located in Optics Valley
of China--- Wuhan East lake high-tech development Zone, established
in 2008, with factory area of 50002 and 120 employees, We are the member of National Standardization
Committee for Electric Meters & Instruments.
Wei Dian Union are specialized in manufacturing electric measuring
instrument and current transformer with a concentration in R&D,
Production, sales & after sales, which guarantee us strictly
comply with standard of GB/T22264-2008 & GB/T7676-98 to
operate. Now , we have ISO9001-2008 certificate, digital meter have
passed CE, while marine meter approved by China Classification
Our products are widely used in transmission & distribution
power system of shipping, aviation, railway, oil, chemistry,
metallurgy, electric, power station, intelligent building,
industrial instrument, etc.
With the principle of “Pursuing for precision and perfection,
unifying thinking and behavior ”, continuous exploration and
innovation to meet customers’ demands. Reliable quality and good
after-service receive more and more trust from users.