Abstract: A process oxygen analyzer includes a process probe extendible into a flow of process combustion exhaust, the process probe having an oxygen sensor measurement cell. Measurement circuitry is coupled to the oxygen sensor measurement cell and configured to obtain a non-corrected indication of oxygen concentration relative to a combustion process based on an electrical characteristic of the oxygen sensor measurement cell. A controller is operably coupled to the measurement circuitry and is configured to obtain an indication of process pressure and selectively provide a corrected oxygen concentration output based on non-corrected indication of oxygen concentration and the indication of process pressure. A method of providing a process oxygen concentration using a process oxygen analyzer coupled to an industrial combustion process is also disclosed.

Abstract: A process oxygen analyzer includes a process probe extendible into a flow of process combustion exhaust, the process probe having an oxygen sensor measurement cell. Measurement circuitry is coupled to the oxygen sensor measurement cell and configured to obtain a non-corrected indication of oxygen concentration relative to a combustion process based on an electrical characteristic of the oxygen sensor measurement cell. A controller is operably coupled to the measurement circuitry and is configured to obtain an indication of process pressure and selectively provide a corrected oxygen concentration output based on non-corrected indication of oxygen concentration and the indication of process pressure. A method of providing a process oxygen concentration using a process oxygen analyzer coupled to an industrial combustion process is also disclosed.

Abstract: An in-situ averaging combustion analyzer includes a housing and a probe coupled to the housing at a proximal end. The probe has a distal end configured to extend into a flue and contains a zirconia-based oxygen sensing cell proximate the distal end. Electronics are disposed in the housing and are coupled to the zirconia-based oxygen sensing cell. The electronics are configured to measure an electrical characteristic of the zirconia-based oxygen sensing cell and calculate an oxygen concentration value. An averaging conduit is disposed about the probe and has a plurality of inlets spaced at different distances from the distal end of the probe. The averaging conduit has at least one outlet positioned between the distal end and the proximal end of the probe. The electronics are configured to provide an average oxygen concentration output based on the calculated oxygen concentration value.

Abstract: An apparatus for sensing a process variable, includes a housing and a process variable sensor that has an electrical characteristic that changes with a process variable. A first sealed portion is configured to be exposed to a process fluid. The process variable sensor is mounted relative to the first sealed portion. A second sealed portion couples the first sealed portion to the housing. The second sealed portion has at least one seal that fluidically isolates the first sealed portion from the housing.

Abstract: An apparatus for sensing a process variable, includes a housing and a process variable sensor that has an electrical characteristic that changes with a process variable. A first sealed portion is configured to be exposed to a process fluid. The process variable sensor is mounted relative to the first sealed portion. A second sealed portion couples the first sealed portion to the housing. The second sealed portion has at least one seal that fluidically isolates the first sealed portion from the housing.

Abstract: A compact industrial process transmitter is provided having an electronics module that includes a top surface with a plurality of lead attachment points thereon. At least one of the lead attachment points disposed on the top surface of the compact temperature transmitter electronics module includes a upwardly extending external lead attachment clip. In some aspects, a plurality of upwardly extending lead attachment clips as well as lead attachment points that have a lead wire engaging surface that is substantially flush with or raised above the top surface of the compact temperature transmitter electronics module.