SMM Pellistor

Our SMM Pellistor, or catalytic bead sensor, line is selected by N.E.T. and manufactured, on OEM basis, by the companies leading in the field. The sensor monitors the presence of a combustible gas or vapor in air (or atmospheres containing oxygen) up to the Lower Explosive Limit (LEL).

SMM Pellistors consist of a matched pair of elements mounted on TO4 size headers and protected by a metal can. The matched pair is housed in standard 7-series plastic enclosure (D32 mm x H100) to fit a standard gas detector. The standard dimensions and the electrical output make our Pellistor perfectly compatible with a wide range of commercially available Gas Detection Systems and remote flammable gas detector heads.

SMM Pellistors exhibits excellent long term zero and sensitivity stability and a high level of resistance to catalytic poisons. The highly automated manufacturing procedure employed results in a repeatable, reliable sensor which, unlike similar devices, requires no trimming resistor to enable the detector to be matched with a compensator. Our NP-ACSMM is a special-purpose Pellistor sensor, designed to monitor % LEL levels of Acetylene with outstanding poison resistance.