3. Which type of LEL sensors are the best – IR or catalytic?
The most common type of LEL sensors are infra-red (IR) and catalytic (often called cat’s) – both have their benefits. IR sensors are around 4-6 times more expensive than catalytic but are more stable, last longer and less resistant to contamination.
The main drawback of IR is that they are very solvent-specific which is a problem where different solvents are used. Catalytic are much better at monitoring a range of solvents and are more commonly used on presses.
If you would like to discuss any aspect of the information outlined in this question, please contact EPM at firstname.lastname@example.org.