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YOKOGAWA

Yokogawa Corporation of America

North & Central America

TruePeak Tunable Diode Laser (TDLS200)

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The new Yokogawa TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer is one of the most robust process analyzers available designed to make fast, accurate measurements on near-infrared absorbing gases in harsh process environments, where conditions are of high temperature or pressure, it can be used under difficult conditions including environments involving corrosive, aggressive and high particulate content materials.

The TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer is ideally suited to in-situ analysis, particularly for measurements in environments involving changing pressure or temperature. It can operate with process pressures up to 20 bar absolute and process temperature up to 1500°C, has a fast response (from 2 to 20 seconds), and is interference-free for most applications.

It can measure Carbon monoxide (CO), from low ppm detection limits to percentage levels and carbon dioxide (CO2) can also be measured at process temperatures of up to 1500°C. The analyzer can also be used for measuring parts per million moisture content in corrosive and aggressive process streams including chlorine and hydrocarbons.

The The TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer operates by measuring the amount of a laser light that is absorbed as it travels through the gas being measured. Involving no sensor contact with the process and no moving parts, it leads to a high MTBF and hence a low cost of ownership.

It offers a range of flexible installation options, and features on-board diagnostics. Using a tunable diode laser as a monochromatic light source offers the benefits of sensitivity, selectivity to resolve single absorption lines, and power – to overcome the effects of optically thick environments with high particulate loading.

The new instrument is one of the most robust process analyzers available. In addition to operating in conditions of high temperature or pressure, it can be used under difficult conditions including environments involving corrosive, aggressive and high particulate content materials.

The TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer is a compact stand-alone unit with available in a 4´20 vacuum fluorescent display for scrolling information or a 7-inch color screen with keypad. The instrument offers a range of interfaces including Ethernet, USB communication for safe or hazardous areas.

The instrument includes three configurable 4-20 mA outputs, two 4-20 mA inputs in case of temperature and pressure compensation, and relay outputs including warning/fault relays and 3 valve drivers for validation or stream switching.

The ability of the new The TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer to carry out accurate online process measurements makes it ideally suited to applications such as combustion control, where it can be used to optimize the combustion process by measuring excess oxygen and carbon monoxide on a precise and continuous basis.

It also allows carbon monoxide to be accurately measured on a continuous basis at low ppm levels so that air fuel ratios can be precisely and continually optimized.

Other potential applications of the TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer include the monitoring of carbon monoxide, methane and moisture to enable burner flame-out and process tube leaks to be identified; the measurement of oxygen on flare lines, alkylation units and gas plants; the monitoring of carbon monoxide and oxygen on fluid catalytic cracking units for safety and catalyst regeneration; or the detection of low ppm concentrations of moisture in hydrocarbons in catalytic reforming processes.

  • In Situ Analysis
  • Fast Response (2-20 seconds)
  • Interference Free for most applications
  • TruePeak measurement capable of measuring under changing pressure, temperature and background
  • Process Pressures up to 20 Bar
  • Process Temperature up to 1500ºC
  • Optical Measurement, no sensor contact with process
  • Low LTCO (no moving parts, high MTBF for components)
  • Flexible Installation Options
  • On Board Diagnostics
  • ATEX Group II for zone 1 (Cat 2G) or 2 (Cat 3G) with purge systems