Gas Detection

Choosing the Best Technologies for Combustible Gas and VOC Measurement

Oct 20 2011 Read 3031 Times

Author: Bob Henderson on behalf of GFG Gesellschaft fur Geratebau

Free to read

This article has been unlocked and is ready to read.


Most multi-sensor gas detectors include sensors used to measure the four most commonly encountered hazards: oxygen deficiency (and enrichment), LEL combustible gas, carbon monoxide and hydrogen sulphide. However, in some cases, these basic sensors are not capable of measuring the atmospheric hazards that are actually present.

Hundreds of thousands of these basic “four-gas” atmospheric monitors are used every day. The sensors utilised in these portable gas detectors are extremely good at detecting what they are designed to measure. As good as the sensors are,
however, they still have limitations. It is critically important for instrument users to understand what the sensors in their instrument cannot properly measure as well as what they can. In most cases the types of sensors installed in these basic instruments are well suited to the hazards to be measured. However, specific conditions and hazards may require the use of more specialised sensors, or a specialised calibration strategy that will provide more accurate readings for the gases actually present. Combustible gas sensors are particularly subject to limitations that can materially affect their ability to detect certain types of combustible gases and vapours. The good news is that there is an extremely wide range of technologies and types of sensors available for use in portable multi-sensor instruments.

Free to read

This article has been unlocked and is ready to read.


Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment

Digital Edition

Asian Environmental Technology November 2020

November 2020

In This Edition Business New - Acquisition to combine French expertise for moisture analysis in gas - ASTM International Water Committee developing proposed contaminate monitoring standard...

View all digital editions


Asia Water 2020 - NEW DATES

Nov 30 2020 Virtual event

Oceanology International 2020 - NEW DATES

Dec 01 2020 Virtual event

Valve World Conference & Expo 2020 - CANCELLED

Dec 01 2020 Dusseldorf, Germany

Biogas Convention 2020

Dec 08 2020 Virtual event

View all events