IN SITU HEATED PROCESS PROBE

摘要

A process combustion transmitter (10) is provided. The transmitter (10) includes a process probe (12) extendible into a flow of process combustion exhaust. The process probe (12) has a measurement cell (36) with an operating temperature that is above a flashpoint of process combustion fuel. The process probe (12) includes a heater (38) configured to heat the measurement cell (36) to the operating temperature. Electronic circuitry is coupled to the measurement cell (36) and to the heater (38). The electronic circuitry is configured to disengage power to the heater (38) once process combustion heat is sufficient to maintain the measurement cell (36) at the operating temperature and thereafter to maintain the heater (38) in a de-energized state.