Product Details
AC Panel Mount Voltmeter Three Phase 0 - 20ma Analog Output 4
Digits LED
1. What is our meter used for?
Measuring and displaying the voltage in electric power network and
automation control system.With the characteristic of
direct-reading, high accuracy, good stability and anti-vibration.
2. Key Points:
- High-precision measurement of three-phase Voltage Measurement.
- The current transformation ratio programmable settings
- Support for RS-485, Modbus-RTU Protocol
- Support the switch quantity input. digital output, analog output
quantity transducer
- Auxiliary power supply: ACDC
80V-270V,AC220V,AC380V,AC100V,DC48V,DC24V
3. Products Description:
- measurement accuracy: current class 0.5s
- signal input: connection of three-phase four-wire, three-phase
three-wire
- Rated current: AC 0-500V
- Overload: 1.2 times (constant), 10 times times 5 seconds (instant)
- Power consumption: <0.4VA
- Impedance: <20m euro
- Frequency: AC 50Hz
- auxiliary power: job range ACDC 80V-270V,AC220V
- Power consumption: <3VA
- module: communication interface, 1 RS-485, Modbus-RTU Protocol
- Switch input: supports 4-channel dry contact input
- Digital output: supports 1-channel relay output, capacity:
AC2505A,DC30V5A
- Transmitting output: supports up to 3 channels of analog output:
4-20mA
- Storage temperature:-25-55
4. Ordering Code:
Model No | Panel Size(mm) |
WD-2U3 | 120*120-93 |
WD-9U3 | 96*96-93 |
WD-3U3 | 80*80-93 |
WD-AU3 | 72*72-93 |
WD-BU3 | 96*48-93 |
WD-DU3 | 48*48-81 |
Note: RS485 / Relay & Analog output are options;
5. Installation and storage:
Notice: Never install the meter with power!
Hole Size: 76*76mm Vertical installation.

6. Application:
Digital intelligent meter are electric unit measuring instrument
with function of programmable measurement,display and digital
communication, etc. Utilize AC/DC sampling technology, be able to
measure current, voltage, power, power factor, frequency in power
transmission & distribution system,
widely used in power transforming, distribution automation,
intelligent building and power monitoring,
site-inspection & remote monitoring also available.
Company Profile
Wei Dian Union(Hubei) Technology Co.,Ltd.
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
Society (CCS).
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.
Weidian Union has a great team to service domestic & overseas
customers. With the help of university, our technical department
are able to share with the newest techonology to promote upgrade of
products. Our sales team divided into domestic and international
sales, which help customers on pre-selling, sales and after
service, make sure to satisfy diversity demands from customers, the
team always ready in 7*24 hours. Producing & QC department:
Over 3 years' skilled workers,to fulfill the producing, assembling
and adjusting works.
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.