TDLAS & QF Analyzers

TDLAS & QF Analyzers

Endress+Hauser TDLAS & QF analyzers are optical gas analyzers for real-time concentration measurement. TDLAS (tunable diode laser absorption spectroscopy) quantifies trace H2O, H2S and CO2 in gas streams. QF (quenched fluorescence) measures oxygen from low ppm to percent with excellent stability.

They deliver fast, stable performance with low maintenance. TDLAS uses a non-contact optical path, keeping aggressive gases off critical components, speeding response and reducing recalibration. QF analyzers are practically immune to H2S, CO2 and H2O, so O2 readings remain trustworthy where galvanic cells struggle.

Typical uses span gas quality and process control in natural gas pipelines, gas processing and LNG, refineries, and petrochemical plants. These measurements help prevent contamination, corrosion, and off-spec product while maximizing uptime.

A broad portfolio—field instruments and analyzers with hazardous-area approvals and open interfaces (Modbus, 4–20 mA, Ethernet web server)—fits new projects and retrofits. Result: accurate, continuous measurements that cut operating cost, simplify compliance and give operators actionable insight.

TriNova, your trusted Endress+Hauser Representative since 2002.