Showing posts with label tunable diode laser. Show all posts
Showing posts with label tunable diode laser. Show all posts

Monday, October 21, 2019

No More Purge Gas Required for New Tunable Diode Lasers for Combustion Processes


A new generation of TDLs not only offers exceptional fuel costs savings, but eliminates the need for process side purge gas.


Refineries, petrochemical, fertilizer and power plants worldwide have large numbers of combustion processes in operation, from process heaters and fired heaters to package boilers and large steam turbines. Whenever a process fluid needs to be heated as part of a chemical reaction, or there is a requirement for steam generation, there will be a combustion process at its heart.

This paper presents a review of the general anatomy of a typical combustion process; describing each zone and its function, before discussing some of the challenges of combustion measurement and how modern TDL analyzers such as METTLER TOLEDO’s GPro 500 and its range of process adaptions offer many advantages over typical combustion analysis technologies.




For more information about GPro® 500 TDL, contact Alliance Technical Sales by calling 630-321-9646 or by visiting https://alliancets.com.

Monday, September 30, 2019

The Mettler Toledo GPro® 500 Series of Tunable Diode Lasers

Tunable Diode Lasers


Tunable Diode Lasers (TDLs) use a measurement technology called absorption spectroscopy: they output a beam of laser light at the same frequency that the gas to be measured absorbs light. The TDL analyzes the light after it has passed through the gas stream and calculates the quantity of the target gas in the stream. The use of TDL sensors is becoming more and more common in industrial processes.

Mettler Toledo manufactures the GPro® 500 TDL Series of Tunable Diode Laser designed for the toughest gas measurements. These analyzers are known to handle some of the most demanding process applications, particularly where accuracy and fast response is crucial.

Using a modular design, the GPro® 500 tunable diode laser gas analyzer allows you to select the process adaption that fits your application, and match it with the parameter that you need to measure. We offer sensors that measure  a variety of gases including Carbon Dioxide (CO₂), Carbon Monoxide (CO), Hydrogen Chloride (HCl), Hydrogen Sulfide (H₂S), Moisture, Ammonia (NH₃), Methane (CH₄) and Oxygen (O₂).

GPro® 500 Tunable Diode Laser - Eliminate Alignment

Most TDLs are comprised of two parts: the laser source unit and a receiving/analyzing unit. These parts must be installed directly opposite each other, which is not always easy and misaligned can often occur. METTLER TOLEDO's GPro® 500 Series solves this by combining both parts in a single unit. A probe attached to the GPro® sensor protrudes into the gas stream. A three-sided mirror at the end of the probe directs the beam back through the probe to the receiver, so alignment is always perfect.

GPro® 500 Tunable Diode Laser - Minimal Maintenance

GPro® 500The GPro® does not require "maintenance intensive" extractive and conditioning systems. This means that you receive consistent performance from your tunable diode laser gas analyzer without the downtime and cost associated with these traditional systems. You achieve reliable uptime, critical in safety applications, at a reduced cost of ownership.

For more information about the Mettler Toledo GPro® 500 Tunable Diode Laser, contact Alliance Technical Sales.
Phone: 630-321-9646
Web: https://alliancets.com

Wednesday, June 19, 2019

Safety, Quality, Productivity: Rethinking Gas Analytics Across Process Industries

GPro® 500
Mettler Toledo Process Analytics designs analyzers and sensors based around a simple concept – how can the design, handling, and maintenance of their products help you improve quality, productivity, and safety? This led to their rethinking gas analytics and the development of a unique portfolio of gas instruments that offers you faster measurements, greater process availability, and unequalled ease of use.

The Mettler Toledo GPro® 500 TDL O2, CO, CO2 and moisture analyzers are designed for ease of installation and low maintenance operation in a wide variety of process applications in the refining, petrochemical, and associated process industries.

The GPro® 500 oxygen gas analyzer is a unique tunable diode laser spectrometer designed for safety applications. It uses a folded-path laser beam design for simple installation and measurement.
GPro® 500 Overview:
  • Ideal for applications such as: flare safety control, combustion control, chlorination and oxychlorination, process control, ESP filter production, vent headers, inertization and vapor recovery.
  • Is installed in situ, so you get a quick response without the need to extract and condition a sample. This provides a fast response time so that you can make real-time reactions to out-of-spec conditions.
  • Is configurable, enabling the oxygen gas analyzer's measurement system to be paired with a variety of process adaptions to meet a wide range of installation requirements.
  • Uses Intelligent Sensor Management (ISM®) technology to offer predictive diagnostics on analyzer condition, including informing you when cleaning of the optical path will be required.

Applications covered in the eBook include:
  • Direct Chlorination
  • VCM Waste Gas Recovery
  • FCC Units
  • Electrostatic Precipitators
  • Formaldehyde Production
  • Formaldehyde Production
For more information about GPro® 500 TDL O2, CO, CO2 and moisture analyzers, contact Alliance Technical Sales by calling 630-321-9646 or by visiting https://alliancets.com

Sunday, March 31, 2019

METTLER TOLEDO's GPro 500 Series Tunable Diode Laser Gas Sensor

The use of Tunable Diode Laser (TDL) gas sensors is becoming more and more common in industrial processes. This is because they measure directly in the process gas stream without drift or cross-interference and are far more economical to purchase, install and maintain than other gas analyzer types. TDLs use a measurement technology called absorption spectroscopy: they output a beam of laser light at the same frequency that the gas to be measured absorbs light. The TDL analyzes the light after it has passed through the gas stream and calculates the quantity of the target gas in the stream.

Most TDLs are comprised of two parts: the laser source unit and a receiving/analyzing unit. These parts must be installed directly opposite each other, which is not always easy and misaligned can often occur. METTLER TOLEDO's GPro 500 Series solves this by combining both parts in a single unit. A probe attached to the GPro 500 sensor protrudes into the gas stream. A three-sided mirror at the end of the probe directs the beam back through the probe to the receiver, so alignment is always perfect.

The series is available with a wide range of different probes and adaptions that allow the GPro 500 to be placed wherever required in a process. These include: 
  • a probe with a filter to prevent dust ingress
  • a wafer probe for narrow (2") pipes
  • an extractive cell for use with sampling and conditioning systems
  • a White cell for trace level detection
Using a modular design, the GPro 500 tunable diode laser gas analyzer allows you to select the process adaption that fits your application, and match it with the parameter that you need to measure. We offer sensors that measure  a variety of gases including Carbon Dioxide (CO₂), Carbon Monoxide (CO), Hydrogen Chloride (HCl), Hydrogen Sulfide (H₂S), Moisture, Ammonia (NH₃), Methane (CH₄) and Oxygen (O₂). 

The GPro 500 does not require maintenance-prone extractive and conditioning systems. This means that you receive consistent performance from your tunable diode laser gas analyzer without the downtime and cost associated with these traditional systems. You achieve reliable uptime, critical in safety applications, at a reduced cost of ownership.

For more information on METTLER TOLEDO Gas Analysis, contact Alliance Technical Sales.
630-321-9646

Wednesday, May 31, 2017

Mounting Adaptions Expand Applications for Tunable Diode Laser Gas Analyzers

tunable diode laser gas analyzer with retroreflector adapter
Tunable diode laser gas analyzer with retroflector
requires no special aiming and puts the source
and detector on the same side of the pipe.
Courtesy Mettler Toledo
Gas analysis is an important part of production, quality control, safety, efficiency, or legal compliance in many industrial operations. Reliable and accurate information about the concentration of certain gas components enables operators to properly control processes and regulate output.

A tunable diode laser gas analyzer (TDL) is essentially an application of absorption spectroscopy. The laser light source can be adjusted to the absorption wavelength of the target gas molecule. The light passes through the gas and is collected and measured by a detector. Based upon known properties of the target gas molecule, its concentration can be determined. The technology provides suitable accuracy, delivers real time measurement data, and in many cases requires little maintenance. Of course, applying technology in the field can present unique site specific challenges.

Dust, other particulates, distance related to pipe diameter, pressure, and temperature can impact the instruments ability to deliver reliable measurements. Additionally, installations using opposing emitters and detectors in a "cross pipe" configuration can have difficulty in achieving and maintaining proper alignment. Solutions are at hand for many of these previously intractable applications. Integrating the light source and detector into a single unit with lighter weight and smaller size enables a less complicated installation scenario. There are other adaptions made to the instrument that overcome many of the commonly encountered difficulties when installing a TDL into an existing or new system.

Mettler Toledo, innovator in the TDL field, authored a white paper illustrating some of the installation challenges and how they can be successfully and easily overcome using a properly adapted tunable diode laser gas analyzer. The paper is included below, taking only a few minutes to read. It's well worth the time spent.

Share your process analytical requirements and challenges with specialists in process analytical solutions, combining your own process knowledge and experience with their product application expertise to reach a successful outcome.


Wednesday, March 15, 2017

Expanded Tunable Diode Laser Parameter and Installation Range

tunable diode laser gas analyzers
The GPro 500 Series TDL Gas Analyzers
Courtesy Mettler Toledo
Inline continuous gas analysis is a necessary tool for effectively tracking emissions of many types. A tunable diode laser (TDL) can provide accurate continuous measurement of target gas concentration. With the proper installation configuration, the instruments exhibit no drift and are not subject to interference, offering a sustainable means of delivering needed process data.

Mettler Toledo, with the expansion of their GPro 500 Series of TDL instruments, now provides continuous gas concentration measurement solutions for carbon dioxide, carbon monoxide, oxygen, moisture, hydrogen sulfide, and hydrogen chloride.

Varying application conditions can present specific challenges to an effective installation of a TDL, so the GPro 500 is available in variants that accommodate a range of installation conditions.

  • The standard probe is a purged configuration for general use.
  • A non-purged version is suitable for reactor of other vessel installation.
  • Combustion process measurements are handled by the non-purged filter probe, with a sintered filter to prevent dust from entering the measurement cell.
  • High particulate combustion processes can be served by the filtered probe provided with a blow-back port. It allows high pressure instrument air to clean the filter.
  • A wafer version, for tight spaces and pipes, is also available.
  • Two adaptions are also available for use with existing sample conditioning equipment.
  • A retroflector adapter enables a cross-pipe measurement. It is designed to forgo the need for alignment, making installation simple.
Tunable diode laser gas analyzers provide an effective means of continuous gas concentration measurement for the process industries and combustion operations. Share your process and combustion gas analysis challenges with a product application specialist, combining your own valuable process knowledge and experience with their product application expertise to develop effective solutions.

Wednesday, August 24, 2016

Innovative Tunable Diode Laser TDL Gas Analyzer

Mettler Toledo has developed the first compact TDL with an insertion probe form factor. The instrument requires only a single flange or insertion point in process piping. Several versions are available that accommodate a range of pipeline and media conditions. The video below tells the whole story. Detailed application information is available from product specialists.