Abstract: Various embodiments described herein, relates to a filter-less particle separation unit (FLPS) for a gas monitoring system. The filter-less particle separation unit includes, an inlet that defines an annular flow passage to facilitate an inflow of a fluid in the FLPS. In this regard, the annular flow passage between a first end and a second end of the inlet, defines an acceleration nozzle that is operable to accelerate the inflow, and eject the fluid at a defined volumetric flow rate. The FLPS further includes, a particle separating zone having a cavity of a defined form factor. The particle separation zone is operable to separate any particulate material that may be present in the fluid. Further, the FLPS includes an outlet operable to facilitate an outflow of filtered fluid to an input port of the gas monitoring system that measures a concentration of a reactive gas present in the fluid.

Abstract: Embodiments relate generally to systems, devices, and methods for verifying operation of an optical flame detector. A system may comprise an optical flame detector, wherein the optical flame detector comprises: a digital infrared test signal source, wherein the digital infrared test signal source is configured to transmit a digital infrared test signal; and at least one of an ultraviolet light sensor, a visible light sensor, and an infrared sensor; and an portable infrared test receiver, wherein the digital infrared test signal is receivable by the portable infrared test receiver, wherein the portable infrared test receiver is positioned to indicate whether a location of potential fire is within a field of view of the optical flame detector.

Abstract: Embodiments relate generally to systems, devices, and methods for verifying operation of an optical flame detector. A system may comprise an optical flame detector, wherein the optical flame detector comprises: a digital infrared test signal source, wherein the digital infrared test signal source is configured to transmit a digital infrared test signal; and at least one of an ultraviolet light sensor, a visible light sensor, and an infrared sensor; and an portable infrared test receiver, wherein the digital infrared test signal is receivable by the portable infrared test receiver, wherein the portable infrared test receiver is positioned to indicate whether a location of potential fire is within a field of view of the optical flame detector.