Diagnosis for ANSI/IEEE C57.104 Standard

^**H₂ == Normal

^**CH₄ == Attention

^**C₂H₂ == Normal

^**C₂H₄ == Danger

^**C₂H₆ == Normal

Diagnosis for IEC Basic Gas Raito

^**C₂H₂/C₂H₄ == Normal

^**CH₄/H₂ == Discharge of High Energy

^**C₂H₄/C₂H₆ == Temperature Fault > 700˚C