New IR gas detector
September 1st 2008 Crowcon says its new IREX
infrared (IR) flammable gas
detector is designed to replace
pellistor (catalytic bead) type
flammable gas detectors, resulting
in faster response times and
greatly reduced zero drift. Capable
of detecting methane, butane,
propane and many other
hydrocarbons, IREX is specifically
designed for the oil, gas and
petrochemical industries.
Pellistor and some other IR type
gas detectors are fitted with sinters
(flame arrestors) to achieve Exd
flameproof certification. Sinters
slow response time and can
become blocked by contaminants,
a frequently underestimated
problem.
Using an IREX detector results in
a T90 response time of less than
seven seconds, comparable with
the most expensive conventional IR
gas detectors. Excellent zero
stability is also achieved, with none
of the drift issue associated with
pellistors and cables. More articles from Crowcon Detection Instruments Ltd: | 
