Working Principle
The AMETEK 888 Tail Gas Analyzer continuously measures sulfur compounds in SRU tail gas to evaluate sulfur conversion efficiency and ensure environmental compliance.
Depending on configuration, the analyzer uses UV / thermal / electrochemical detection techniques combined with heated sample handling to prevent sulfur condensation.
Main Components
- Sample probe with heated sample line
- Sample conditioning and filtration system
- Analyzer module and detector
- Calibration gas manifold and solenoid valves
- Analyzer controller / HMI
- Analog & digital communication interfaces
Calibration Procedure
- Confirm analyzer warm-up and stable temperature
- Verify sample flow and pressure
- Apply Zero gas (typically nitrogen)
- Apply Span gas with certified sulfur concentration
- Allow readings to stabilize before accepting calibration
- Return analyzer to process and verify normal readings
Frequent calibration failure usually indicates sample system contamination or temperature issues.
Major Troubleshooting Areas
- Low / Zero Reading – probe blockage, cold sample line
- High Sulfur Reading – process upset, calibration drift
- Unstable Signal – pressure fluctuation, moisture ingress
- Slow Response – sulfur deposition, long sample lines
- Analyzer Offline – power, controller, or I/O issue