Overview
The Siemens C79451-A3278-B111 chopper is a specialized optical component used in infrared gas analysis systems. This discontinued part is engineered for precision measurement applications in industrial gas monitoring and emission monitoring equipment. The chopper functions as a mechanical modulator in NDIR (Non-Dispersive Infrared) analyzer designs, enabling accurate gas concentration detection across a range of industrial gases.
Key Features
- Chopper assembly for infrared gas analyzers
- Designed for all measurement gases except COâ‚‚
- Precision-engineered optical modulation component
- Used in legacy Siemens ULTRAMAT analyzer systems
- Discontinued by manufacturer; suitable for spare parts and system restoration
Technical Specifications
This component is part of Siemens’ infrared analyzer product line. It functions as an optical chopper mechanism essential for NDIR gas detection. The precise specifications regarding frequency, motor characteristics, and optical properties are available through Siemens technical support. For complete technical documentation, contact authorized Siemens distributors or service centers specializing in gas analyzer equipment.
Typical Applications
The C79451-A3278-B111 chopper is commonly found in:
- Industrial emission monitoring systems
- Multi-component gas analyzer equipment
- Combustion analysis instruments
- Environmental air quality testing
- Laboratory and field-deployed gas detection stations
Compatibility & Replacements
This part is discontinued by the manufacturer. If you require a replacement or need to upgrade a system using this component, Siemens technical support and authorized distributors can recommend suitable alternatives based on your specific analyzer model and application requirements. The related part C79451-A3278-B112 is available from some distributors as a comparable component for COâ‚‚ processing systems.






















