The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2014
Filed:
Oct. 21, 2010
Shuichi Kawana, Osaka, JP;
Shuichi Kawana, Osaka, JP;
Shimadzu Corporation, Kyoto-Shi, JP;
Abstract
The present invention aims at realizing an energy-saving mode in which the usage of a carrier gas and the power consumption are sufficiently suppressed without causing damage to the apparatus. When a command for executing the energy-saving mode is entered (S), the column flow rate after the transition to the energy-saving mode (when the temperature decreases) is computed by using control parameters determined in correspondence to the energy-saving mode. If the flow rate exceeds the allowable upper limit determined by the configuration of the apparatus (Sand S), a warning for urging users to decrease the column inlet pressure and enter the command again is displayed (S). If the computed flow rate is not higher than the allowable upper limit, a constant pressure control is performed aiming at the inlet pressure at that point in time (Sand S). Although the column flow rate gradually increases after the heater of the column oven is turned off, it will not exceed the allowable upper limit. Thus, the detector is prevented from being damaged.