Directly Measure Oxygen of Process Gas in 5 Seconds or Fewer. An SIL2 Certified Safe Measurement Solution

Introduction

In managing risk at the plant, measurement of oxygen concentration in process gases is, of course, a matter of necessity. Engineers typically use sampling systems for these measurements. However, samplers do not provide real-time values because it is necessary to extract the process gas, resulting in a time lag between measurement and phenomena. Unfortunately, this lag can hide sudden rises in concentrations of oxygen that may cause explosion. The reality is that sampling systems do not fully provide what is needed for managing risk. Resolving this problem is Yokogawa's safe oxygen measuring solution featuring the TDLS laser gas analyzer. The TDLS can measure process gas directly in 5 seconds or fewer, and can keep your initial and running costs down. And it's highly safe—it has certified conformance to the SIL2 safety level of the IEC61508 international safety standard. Yokogawa's solution has been used in a variety of measurement applications including oxygen concentration in oil refinery hydrocarbon vapors, oxygen concentration control with ethylene oxide reactors, and oxygen concentration in tank headspace gas. Not only is it safe, but it also helps increase manufacturing efficiency.

What is the TDLS Gas Analyzer?
The TDLS series is installed directly on the line. By irradiating process gas with a laser, it can measure not only O2, CO, CH4, NH3, and H2O, but also concentrations of various gases that have absorption in the near-infrared region. The laser is partitioned behind a glass window, and does not come into contact with the process gas. Therefore it delivers stable measurement under harsh conditions including high temperature, high pressure, corrosive and irritant gases, and dust. As the successor to the TDLS200, the TDLS8000 has increased functionality through smarter design, featuring a touch panel for greater ease of use.


Customer's Benefits

  • Delivers Reliable High Speed Analysis in Emergencies
  • Measures Accurately by Resisting Pressure, Temperature, Dust, and Other Impediments
  • Solid, Simple Design Increases Reliability

 

Solution and Benefits

  • Delivers Reliable High Speed Analysis in Emergencies
    By connecting to a safety control device that alerts a remote monitoring room or provides emergency shutdown, data measured at 5-second or shorter intervals can quickly respond to unforeseen events. The TDLS8000 is certified to conform to safety level SIL2 based on the international IEC61508 standard, and a single unit can be installed in an SIL2 safety loop. With 2 units, the TDLS8000 can be used in an SIL3 safety loop. Finally, in the worst case scenario, the explosion proof specifications of many of our models minimize damage.
     
  • Measures Accurately by Resisting Pressure, Temperature, Dust, and Other Impediments
    To enable analysis of process gas with sampling systems, it is necessary to adjust for pressure and temperature, and to eliminate dust and humidity as these can alter the nature of the gas itself, and degrade the reliability of the data. The TDLS Gas Analyzer does not transform process gases as a result of measurement. And in solutions with other instrumentation, you can perform data correction and output accurate numerical values in a variety of conditions.
     
  • Solid, Simple Design Increases Reliability
    Troublesome sampling systems are not required, and since the laser section doesn't come into contact with the process gas, there is no wear on parts, and virtually no running costs. There are several installation options to flexibly support most existing lines. Also, since it is partitioned off from the process line with a solid glass window, it maintains a high level of safety even if by chance you have to switch out measuring devices.

Wireless monitoring of waste water pH/ORP across a large-scale plant 


YOKOGAWA Solutions Meet Even More Needs

Yokogawa Electric offers a fast and reliable solution that directly measures process gas, setting a new standard of safe oxygen instrumentation. Many interfaces are available for output of measured data, enabling connection with a wide variety of instruments in systems. By combining products that conform to functional safety standards such as the ProSafe-RS "safety PLC" and EJX/YTA field instruments with CENTUM and other process control systems, we meet our customers' diverse needs by offering a comprehensive solution for efficient and safe operation of the entire plant.

업종

Related Products & Solutions

In-Situ Gas Analyzer TDLS8000

Yokogawa의 새로운 TDLS™8000은 업계 최고의 기능을  전부 담았습니다. 이 플랫폼은 샘플 추출 및 컨디셔닝 장치의 필요없이 현장 측정을 위한 것입니다.

안전 계장 시스템 ProSafe-RS (SIL3)

ProSafe-RS는 IEC 61508에 명시된 SIL3 (Safety Integrity Level)를 충족하기 위해 독일 인증 기관 (TÜV)에서 인증받은 안전 계장 시스템입니다. 대규모 통합 공정 자동화 프로젝트뿐만 아니라 독립 구성 솔루션에 이르기까지 2,400개 이상의 프로젝트를 수행하였습니다.

Tunable Diode Laser Spectrometer

Tunable Diode Laser Spectrometer (TDLS)는 빠른 업데이트 광학 분석 기능을 갖춘 레이저 기반 가스 분석기입니다.

분산 제어 시스템 (DCS)

Yokogawa는 프로세스 자동화를 위해서 중요한 운영 인프라를 제공합니다. 분산제어시스템(DCS)은 플랜트 또는 산업 공정의 자동화 된 제어 및 운영을 위한 플랫폼입니다. 10,000개 이상의 플랜트에서 고객의 생산 목표 달성하기 위해서 Yokogawa DCS가 적용되었습니다.

안전 계장 시스템 (SIS)

안전 계장 시스템(SIS)은 사람, 환경 및 자산을 보호합니다. Yokogawa의 SIS 및 관련 안전 솔루션은 비상 정지, 화재 및 가스, 버너 관리 및 HIPPS의 애플리케이션에 널리 적용할 수 있습니다.

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