96*96mm Marine Digital Tachometer One Channel Passive Relay 2 Switch Output


1. Product Description:

Series of WD-9S Single-phase rpm meters are used for measuring and monitoring the power distribution system. This series of meter can measure rmp in power distribution or other applications.
It combines the measurement, the analysis and the operation together, makes the information become clearer, and the operation become easier.

2. Technical Index:

3. Performance of the Meter:

• High-precision measurement of rpm meter
• Active power display, the local data query
• 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
• Choose a variety of profiles, meet the requirements of different Cabinet electrical circuits.

4. Ordering Guideline:

5. Typical Wiring Diagram:



6. Optional Funcitons:

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.