Overview
The Yokogawa M1234SE-A is a sintered metal fly ash filter engineered to protect zirconia cells in oxygen measurement systems. Fly ash and particulate contamination can degrade zirconia cell performance, reduce measurement accuracy, and shorten operational life. The M1234SE-A uses a self-cleaning design that leverages fluid dynamics to continuously shed particulate matter, eliminating the need for manual maintenance intervals.
Key Features
- Self-cleaning design with passive fluid dynamics—no moving parts or active maintenance required
- Large surface area sintered metal construction for efficient particle capture
- Improves zirconia detector response time to gas concentration changes
- Extends measurement cell lifespan by preventing ash buildup
- Prevents pressure-induced drift from filter blockage
- Compatible with Yokogawa ZR series oxygen analyzers
Technical Specifications
The following specifications are based on Yokogawa manufacturing data and field documentation:
- Manufacturer: Yokogawa Electric Corporation
- Part Number: M1234SE-A
- Product Type: Self-Cleaning Fly Ash Filter
- Filter Media: Large Surface Area Sintered Metal
- Operating Principle: Passive fluid dynamics self-cleaning
- Compatible Analyzer Series: Yokogawa ZR22, ZR202, ZR402 oxygen analyzers
- Application: Flue gas oxygen measurement in power generation, refining, and combustion processes
Typical Applications
The Yokogawa M1234SE-A is used in industrial environments where fly ash exposure requires continuous oxygen measurement:
- Coal-fired power plants and waste-to-energy facilities
- Petroleum refineries and petrochemical production
- Steel mills and furnace operations
- Waste incineration systems
- Combustion control and emissions monitoring
Compatibility & Replacements
Compatible With
- Yokogawa ZR22 Zirconia Oxygen Analyzer
- Yokogawa ZR202 Zirconia Oxygen Analyzer
- Yokogawa ZR402 Zirconia Oxygen Analyzer
- Yokogawa AV550G Multi-Channel Averaging Converter
- Zirconia-based oxygen measurement cells in flue gas applications
Replaces / Drop-In Replacement For
The M1234SE-A is a replacement filter for earlier non-self-cleaning fly ash filter models. Verify compatibility with your specific analyzer model and installation before ordering, as some installations may require adapter kits or hardware modifications.
Works With
- Yokogawa CENTUM DCS integration
- HART protocol communication (via converter modules)
- Foundation Fieldbus (via appropriate adapter)
- Oxygen analyzer control software and calibration tools
