发明名称 |
DETECTING A LOW PRESSURE GAS FEEDING CONDITION IN AN ANALYSIS INSTRUMENT |
摘要 |
<p>This invention concerns a method and a gas chromatographic instrument in which a gas feeding low pressure condition, for instance from a cylinder, is monitored by controlling an electric parameter operating on a proportional solenoid valve placed along the gas line, and wherein an alarm to the operator is foreseen when said parameter reaches a pre-set value, so to allow a cylinder substitution before the pressure falling to zero.</p> |
申请公布号 |
EP2389579(A1) |
申请公布日期 |
2011.11.30 |
申请号 |
EP20090787631 |
申请日期 |
2009.01.21 |
申请人 |
THERMO FISHER SCIENTIFIC S.P.A |
发明人 |
MAGNI, ANDREA;MAGNI, PAOLO |
分类号 |
G01N30/32;F01L9/04;G01N30/86 |
主分类号 |
G01N30/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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