Skip navigation
Go to Global Navigation
Go to Primary Contents
Go to Site Information





2010 Press Releases-26

Tokyo, Japan – December 6, 2010

Yokogawa Meters & Instruments Releases CT1000, CT200, and CT60 Current Sensors

Left:CT60, Center:CT200, Right:CT1000

Left:CT60, Center:CT200, Right:CT1000

Yokogawa Meters & Instruments Corporation announces the December 7 release of three new current sensors, the CT1000 (rated current: 1,000 A), CT200 (200 A), and CT60 (60 A).

These current sensors can measure both AC and DC currents and may be used for high-precision measurement of large currents of up to 1,000 A and contactless measurement of small currents of about 50 A. Together with the 751574 current transducer (600 A), Yokogawa now has a total of four models in its current sensor lineup.

Development Background

In line with the greater efforts that are being made these days to save energy, there is an increasing need to perform high-precision measurement of both large and small electric currents. Examples of this include the measurement of large currents when developing electric vehicles (EV) and plug-in hybrid vehicles (PHV), the measurement of inverter efficiency in photovoltaic power generators, and the contactless measurement of small currents.

To meet these market requirements, Yokogawa has added three new sensors with a variety of measuring ranges to its current sensor lineup.

Product Features

  1. High-precision measurement of large currents
    The CT1000 can measure currents of up to 1,000 A. This is particularly useful in the development of EVs and PHVs, which typically produce a large surge in electric current when accelerating.
  2. High-precision DC measurement
    The CT200 can measure DC currents of about 100 A that are generated by the inverters used in large-scale photovoltaic power generators and by the chargers used by EVs and PHVs.
  3. Contactless measurement
    The CT60 can perform contactless measurement of small currents of about 50 A in equipment that cannot be connected directly to a power meter.

Main Target Markets

Companies engaged in the development and testing of EVs/PHVs and photovoltaic power generator inverters

Main Applications

Performance evaluation during the development of EVs/PHVs and measurement of power consumption by energy-efficient equipment

For more information

About Yokogawa

Yokogawa's global network of 25 manufacturing facilities and 80 companies spans 54 countries. Since its founding in 1915, the US$3 billion company has been engaged in cutting-edge research and innovation, securing more than 7,200 patents and registrations, including the world's first digital sensors for flow and pressure measurement. Industrial automation and control, test and measurement, information systems and industry support are the core businesses of Yokogawa. For more information about Yokogawa, please visit our web site at

Related Links