Overview
The Siemens 7MB2121-1BE00-0AA1 is an Ultramat 6E single-channel NDIR (non-dispersive infrared) gas analyzer designed for continuous, precise gas concentration measurement. Using dual-beam differential measurement principles, this analyzer delivers high precision and long-term stability for fixed gas detection tasks, particularly CO₂ monitoring, with scalable measuring ranges suitable for both ppm-level and percent-level concentrations. Built on Siemens’ proven process analytics technology, it is ideal for industrial process monitoring, environmental emission measurement, and quality control applications requiring reliable, unattended operation.
Key Features
- Single-channel NDIR design optimized for IR-absorbing gases (CO₂, CH₄, and others)
- Dual-beam differential measurement principle for enhanced accuracy and stability
- Scalable measuring ranges from 0–5 vpm up to 0–100 vpm and beyond
- FKM (Viton) gas path hoses for chemical resistance and durability
- Aluminum sample chamber with non-flow-type reference chamber for consistent performance
- 19″ rack-mount configuration for standard cabinet integration
Technical Specifications
- Analyzer Type: Single-channel NDIR gas analyzer
- Measurement Principle: Non-dispersive infrared dual-beam differential
- Target Gases: CO₂, CH₄, and other IR-absorbing gases
- Measuring Range: Configurable from 0–5 vpm to 0–100 vpm (and larger ranges available)
- Sample Chamber: Aluminum construction
- Reference Chamber: Non-flow-type design
- Internal Gas Path: FKM (Viton) hose, 6 mm outer diameter
- Form Factor: 19″ rack-mount unit for cabinet installation
- Power Supply: Standard industrial AC (variant-dependent)
- Certifications: CE marked; compliant with Siemens standards for industrial gas analysis
- Manufacturing Origin: Germany
Typical Applications
- Continuous process gas monitoring in chemical and petrochemical facilities
- Environmental emission monitoring and air quality control
- Combustion optimization in power generation and heating systems
- Quality assurance in food and beverage manufacturing
- Laboratory and research environments requiring accurate gas concentration data
Compatibility & Replacements
The 7MB2121-1BE00-0AA1 is part of Siemens’ Ultramat 6E series and shares configuration and interface compatibility with other Ultramat 6 and 6E variants. It may be interchangeable with other single-channel 7MB2121 models configured for the same gas and range, subject to power supply and mounting requirements. When ordering replacements or spare parts, verify the exact model suffix (the final digits) to ensure correct gas type and range specifications. Consult Siemens technical documentation or contact an authorized distributor for definitive cross-reference information and compatibility confirmation.
















