Electromagnetic flowmeter and zero point measurement method...

Details Electromagnetic flowmeter and zero point measurement method... Electromagnetic flowmeter and zero point measurement method...

2008-03-10

2011-11-01

Williams, Hezron E (Department: 2856)

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

C073S001340

Reexamination Certificate

active

08047080

ABSTRACT:
An electromagnetic flowmeter for giving a magnetic field to a measurement fluid, detecting an electric signal occurring in the measurement fluid according to the magnetic field, and computing a flow quantity value based on the electric signal includes a zero point measurement section for measuring a zero point of the measurement fluid; a storage section for storing the measured zero point measurement value; a determination section for determining whether or not the difference between the preceding zero point measurement value stored in the storage section and the present zero point measurement value is beyond a predetermined value range; and at least either a transmission section for transmitting the determination result or a display section for displaying the determination result when the determination section determines that the difference is beyond the predetermined value range.

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Extended European search report issued in counterpart European Application No. 08004497.7 dated Dec. 21, 2009.

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