There are important considerations when choosing an LFL monitor:
- Response Accuracy
- Response Speed
- Condensation Issues
First let's look at response accuracy.
There are several technologies used to measure flammability, and few react the same way to all substances.
A sensor or analyzer calibrated to accurately read one substance may be significantly inaccurate for another process component. This variance from perfect accuracy (error) is known as the Response Factor.
Variations in response may not pose a significant problem when measuring an atmosphere containing a single substance, but when asked to measure a mixture of different vapors or changing solvent formulations, some technologies will fail noticeably, making for unsafe conditions.