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Yokogawa Releases DTSX200 Distributed Temperature Sensor

Yokogawa Releases DTSX200 Distributed Temperature Sensor
– The First Ever Distributed Temperature Sensor for Natural Resource Production Operations Developed by a Production Control System Manufacturer –



Yokogawa Electric Corporation announces that the DTSX200 distributed temperature sensor will be released to the global market on October 19 and the Japan market in April 2012. The DTSX200 is used in production operations to monitor temperature changes in underground oil sand and oil shale formations and the like.

With the DTSX200, Yokogawa has for the first time ever developed a product for a control application that uses the optical measurement technologies it has acquired over the years in the measurement field. This product can be used in desert locations and other harsh environments, and helps improve production efficiency by working together with production control systems.

Yokogawa is the first production control system manufacturer to develop such a distributed temperature sensor for use at natural resource production sites. The DTSX200 is already being evaluated for use in oil resource development applications by some of our customers, and on-site testing is planned. With the development of the DTSX200 distributed temperature sensor, Yokogawa is able to offer an even more comprehensive set of solutions ranging from temperature monitoring to production control that help production sites improve the efficiency of their operations.

Development Background

The development of unconventional resources has been attracting attention as alternatives to oil. When heavy oil is extracted from oil sands by using steam or some other means, it is necessary to monitor the underground temperature to ensure efficient collection.

To monitor temperature changes in underground formations that contain heavy oil, an optical fiber is fed into a well and the acquired data are used for controlling production. Although Yokogawa previously offered the AQ8920 distributed temperature sensor, this was designed for indoor use and was not suitable for production sites that typically are located in harsh environments. Therefore, natural resource developers need a robust fiber-optic temperature sensor that can withstand harsh environments.

To meet this need, Yokogawa has developed this rugged distributed temperature sensor for natural resource production sites. In so doing, the company has applied its optical measurement technologies for the first time ever in a control application.

Product Features

  1. Works together with production control systems
    Unlike all other distributed temperature sensors on the market, this product is optimized to work smoothly with the production control systems that natural resource developers use in their operations. The DTSX200 thus helps improve the efficiency of production processes, from temperature measurement to production control.

  2. Suitable for use in extreme temperatures
    With its ability to operate stably in temperatures ranging from –40°C to +65°C, the DTSX200 is ideal for use in harsh environments. Moreover, with its low power consumption of 16 watts or less, it can be easily powered by a solar panel and battery if no other power source is available.
  3. The most compact sensor on the market
    The DTSX200 is just one quarter the size of the AQ8920, making it the smallest such product available today. A compact optical switch module for selecting monitoring points (up to 16 channels) is available for rack mounting with the sensor.

Major Target Markets

Unconventional resource production sites


Underground thermometry at oil wells and other natural resource development sites

※ Based on a Yokogawa market survey

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.