Overview
The Yokogawa K9475MR-05 channel card assembly is a specialized interface component for the AV550G zirconia oxygen analyzer system. This channel card provides direct-insertion functionality for modular channel expansion in multi-channel analyzer configurations. The K9475MR-05 supports oxygen and humidity measurement channels, making it an essential component for maintaining and upgrading process analyzer systems in petrochemical, power generation, and refining applications.
Key Features
- Direct-insertion design for tool-free installation and removal
- Compatible with AV550 and AV550G averaging converter platforms
- Supports oxygen and humidity measurement channels
- Hot-swappable architecture allows channel replacement without system shutdown (requires proper power cycling)
- Modular construction enables flexible multi-channel configuration
- Manufactured by Yokogawa Electric Corporation, Japan
Technical Specifications
- Operates within the AV550/AV550G platform ecosystem
- Direct-insertion socket mounting
- Supports analog signal conditioning for oxygen and humidity inputs
- Compatible with standard averaging converter terminal blocks and signal routing
- No external power supply required (powered through AV550 backplane)
- Industrial-grade construction for continuous process monitoring
Typical Applications
- Multi-channel oxygen and humidity monitoring in refinery operations
- Stack emission monitoring systems
- Boiler combustion control and optimization
- Industrial furnace atmosphere control
- Power plant flue gas analysis
- Petrochemical process stream analysis
Compatibility & Replacements
Compatible With
- Yokogawa AV550G Averaging Converter
- Yokogawa AV550 Averaging Converter systems
- Zirconia oxygen analyzer channels
- Multi-channel sensor configurations
Replaces / Drop-In Replacement For
- Original K9475MR series channel cards
- Earlier AV550 platform channel configurations
- Verify compatibility with your specific AV550 firmware version and channel configuration before ordering
Works With
- Yokogawa AV550G control software and firmware
- HART Protocol communication (where applicable)
- Fieldbus communication modules
- Standard 4-20 mA and digital signal inputs














