
Vertical Installation DC Digital Voltmeter Panel Meter Low Power Consumption
1. Application:
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.Main Features:
a. Suitable for HV & HV voltage system;
b. High accuracy IEC62053-21 0.5%;
c. Built in MODBUS-RTU via RS485 port;
d. Optional analog output 4-20mA / 0-20mA
3. Performance Characteristic
4. Technical Index
Accuracy of measurement
♦voltage level 0.5
Signal input
♦Connection mode of single phase
♦Rated voltage of AC 57.7V, AC 100V, AC 220V, AC 380V, DC 2V, DC
20V, DC 200V, DC ♦600V,DC600V
♦Over load 1.2 times ( Continued ), 2 times / second (
instantaneous )
♦Power <1VA/ phase
♦Impedance >300KΩ
♦The frequency of 45~65Hz or DC
Auxiliary power supply
♦Working range of AC/DC 80V~270V, AC220V, AC380V, AC100V, DC48V, DC
24V
♦Power consumption <4VA
5. 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. Product Description:
Model Number | WD-DU3 |
Measured Voltage | AC100V, 220V, 380V, 440V |
Accuracy | 0.5% (Default) |
Protection Level | Front case IP64 |
Overload | Continous: 1.2 times/ Instant: 10s |
Auxiliary Power Supply | AC / DC 80-270V |
Operating Temperature | -25-55℃ |
6. Installation and storage:
Notice: Never install the meter with power!
Hole Size: 45*45mm Vertical installation.
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.