Foreign matter control of gas chromatograph

Time:2018/10/18 Pageviews:4 Share:

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In the gas chromatograph GC vials, depending on the analysis requirements, there are different requirements in the air circuit configuration, and it is often necessary to control some solenoid valves or switching signals, so that there is a foreign affairs control circuit on the circuit. Gas chromatographs usually refer to solenoid valves for external events and are unified for switching control on the circuit.

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In the control, due to the uncertainty of the external events used, the optocoupler is designed in the gas chromatograph circuit to effectively isolate the front and rear stages and reduce the influence of interference signals. Gas chromatograph control components can be selected from two-way thyristors, solid state relays, mechanical relays or electronic switches depending on external GC vials events.

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