Two core technologies power PAS DGA monitoring — photoacoustic spectroscopy (PAS) and palladium alloy thin-film sensing. Together, they deliver lab-grade accuracy with zero consumables, zero carrier gas, and zero maintenance.
Photoacoustic Spectroscopy
Multi-gas DGA via the photoacoustic effect — no carrier gas, no columns, no consumables. The solid-state alternative to gas chromatography.
Palladium Thin-Film Sensors
Room-temperature H₂ detection at 1-2 ppm. MEMS-fabricated, patented PdOₓ anti-CO barrier, <10 µA standby, 10+ year life.
PAS vs Gas Chromatography
Online PAS vs lab GC compared across detection limits, cost, speed and maintenance — and why the industry is shifting.
DGA Technology Comparison
PAS, GC, NDIR, FTIR, TDLAS and fuel-cell — an 8-dimension comparison to choose the right DGA technology.
Standards & Certifications
IEC 60599, IEC 60567, IEEE C57.104, IEEE C57.143 and CIGRE — the DGA standards every engineer should know.
DGA Knowledge Center
Fault gases, diagnostic methods and practical DGA guides — the complete knowledge base for transformer monitoring.