... SO2+SOF2, H2S, CO, HF Dew point Detect the inner incipient faults. Intelligent and Comprehensive Decomposition Products Detector Model: ... JH3000 Series Intelligent expert to detect inner faultsof SF6 circuit breaker, instrument transformer,switchgear, GIS ( ... minutes;Moisture test, 3~5 minutes.*Gas flow: Decomposition product test, 200ml+20/min;Moisture test, 500ml+50/min* ...