Yokogawa E7042UD Zirconia Cell (E7042UE, K9119ED, K9119GE)

Description:

The Yokogawa E7042UD Zirconia Cell is a solid-state oxygen sensing element used in zirconia oxygen analyzers for measuring oxygen concentration in combustion and process gas systems. Commonly installed in furnaces, boilers, incinerators, and industrial combustion systems for continuous flue gas oxygen monitoring. Maintenance teams and system integrators use this part for sensor replacement, analyzer maintenance, and ensuring accurate oxygen measurement in combustion control applications.

Applications:

The Yokogawa E7042UD zirconia cell (including equivalents E7042UE, K9119ED, and K9119GE) is used in industrial gas analysis systems to measure oxygen concentration in high-temperature environments. It is widely applied in power plants, steel mills, petrochemical facilities, and industrial furnaces where combustion efficiency and emissions control are critical. The zirconia sensing element operates at elevated temperatures to provide fast and accurate oxygen readings, supporting process optimization and regulatory compliance.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: E7042UD (also E7042UE, K9119ED, K9119GE equivalents)
• Product Type: Zirconia Oxygen Sensor Cell
• Measurement Type: Oxygen (O₂) concentration in gas streams
• Measurement Principle: Zirconia solid electrolyte (electrochemical oxygen sensing)
• Construction: Zirconia ceramic element with protective housing
• Typical Application: Flue gas and combustion oxygen analysis
• Compatibility: Yokogawa zirconia oxygen analyzers (ZR series, etc.)
• Installation: Probe-mounted within analyzer sensor assembly
• Operating Environment: High-temperature combustion processes
• Function: Converts oxygen concentration into measurable electrical signal
• Features: High accuracy, fast response, stable long-term operation
• Maintenance: Replaceable sensing element for analyzer upkeep

Common Replacements:

• Yokogawa E7042UE Zirconia Cell
• Yokogawa K9119ED Zirconia Cell
• Yokogawa K9119GE Zirconia Cell