... functionLAN TCP:/IP Agreement port open USB2.0RS232 Gas sampling requirementsSample flow: 10~100ml/minSample filter: 2 ... Separation for many valves and columns, TCD system analysis H2, O2, CH4, CO, C2H6, CO2, H2S, C2H4, C3H8, ... to OFF. Before CO2 and C2 flowing out, O2, N2, CH4, CO flow into chromatographic column 13X ... the valve V3 from ON to OFF, components O2, N2, CH4 and CO will be detected. Analysis ...