... functionLAN TCP:/IP Agreement port open USB2.0RS232 Gas sampling requirementsSample flow: 10~100ml/minSample filter: 2 ... many valves and columns, TCD system analysis H2, O2, CH4, CO, C2H6, CO2, H2S, C2H4, C3H8, C3H6, ... flow back to TCD, examined. Components O2, N2, CH4, CO, CO2 and C2 flow out from DC200 ... Before CO2 and C2 flowing out, O2, N2, CH4, CO flow into chromatographic column 13X, switch the ...