Emerson 3D39461G02 Oxygen Probe World Class 3000E

The Emerson Rosemount World Class 3000-E Oxygen Probe (P/N 3D39461G02) is a 6-foot replacement probe for the World Class 3000 oxygen analyzer system, designed to sample combustion gas streams and feed the analyzer’s 4–20 mA output with accurate O2 readings. It is offered in nominal lengths of 18 in (457 mm), 3 ft (0.91 m), and 6 ft (1.83 m) to suit different duct configurations, with the 6 ft length commonly used in larger ducts. The probe draws heater power from the HPS 3000 via a 44 Vac supply to maintain sensor stability, and requires a clean, dry reference air flow of about 56.6 L/hr (2 scfh) for proper operation. It is CENELEC certified to Exd II B flameproof standards, indicating suitability for hazardous environments in industrial settings. When paired with a World Class 3000-series oxygen analyzer, the 3D39461G02 probe provides real-time oxygen concentration measurements in process streams to support combustion control and safety interlocks.