TDL Gas Analyzers

Rethinking gas analysis!

  • TDLs (Tunable Diode Laser spectroscopy) gas analyser without alignment.
  • No drift, no interference, thus minimum calibration.
  • For both in-situ and extractive gas analysis.
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Rethinking Gas Analysis!

Classic TDLs analysers often provide concerns on installation. Especially due to the alignment of the system. Using the Mettler Toledo GPro 500 this becomes history!

Parameters: O2, T, CO, CO2, H2O, HCl, H2S, NH3 and CH4.

This TDL gas analyser can be installed like a probe, on one point and directly into your process. This ensures an immediate and representative gas analysis.

Special software, based on a sophisticated mathematical model, ensures that the GPro 500 has no drift and does not suffer from interference. That’s why virtually no calibration is required. This saves you time and money owing to a minimum of maintenance and results in a more reliable analysis.

The MT GPro 500 is completely modular. You can combine any spectrometer with any process probe. There are probes for large pipes (with or without purge or filter, or cross-pipe version), wafer cells for smaller pipe diameters (down to DN50) and extractive measurement cells.

Parameters: O2, T, CO, CO2, H2O, HCl, H2S, NH3 and CH4.

What is TDL?

A number of technologies may be used for the detection and analysis of specific components in a gas stream in environmental and process applications. These include gas chromatography, mass spectroscopy and chemo-luminescence. All these technologies have their own advantages and disadvantages. That is why Tunable Diode Laser spectroscopy, (TDLs), is now being increasingly used.

TDL analysers are very robust and therefore extremely suitable for inline gas analysis, even under high temperatures and pressure, or in corrosive environments without any sample preconditioning. One of the biggest advantages of TDL analysers is that there is almost no interference from other gases. Thanks to the increasing demand and potential applications, this technology has made significant technical progress. Owing to the use of semiconductor laser diode lasers and accurate tuning of the desired set of wavelengths, TDL analysers have become more sensitive and selective. Technical improvement led to higher stability resulting in less maintenance and long calibration intervals.

For a more detailed discussion on the history and technological background as well as an overview of applications, you can download the e-book here below.