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:
Oct. 19, 1993
Filed:
May. 22, 1992
Rafael Jaramillo, Minnetonka, MN (US);
Roger L Frick, Chanhassen, MN (US);
Karen B Carlson, Eden Prairie, MN (US);
Randy K Paschke, Chaska, MN (US);
Christopher M Throne, Lakeville, MN (US);
Rosemount Inc., Eden Prairie, MN (US);
Abstract
A process variable transmitter which has a manual adjustment for span and zero or the like. The adjustment has a finer adjustment range where the output changes responsive to changes in the position of the adjustment. The adjustment has a coarse range where the transmitter output changes automatically as a function of time to provide coarser adjustment. An operator can move the back and forth between the adjustment ranges until a desired output value is observed. When adjustment is complete, the operator can manually select the desired transmitter output value and then a selection circuit stores the setting in non-volatile memory. After a setting is stored, the transmitter output is not sensitive to movement of the manual adjustment, but is instead controlled by the stored setting.