Mass flowmeter having measuring ranges measured by two...

Details Mass flowmeter having measuring ranges measured by two... Mass flowmeter having measuring ranges measured by two...

2006-01-24

2006-01-24

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

Reexamination Certificate

active

06988400

ABSTRACT:
A flowmeter of the thermal type with a single flow sensor is connected to control and temperature measuring elements for measuring in a first measuring range by a first measuring method and in a second measuring range by a second measuring method. Detection elements detect the measuring method to be selected on the basis of a flow measurement, and control elements control the flow sensor in accordance with the selected measuring method.

REFERENCES:
patent: 4461173 (1984-07-01), Olin
patent: 4800754 (1989-01-01), Korpi
patent: 5339687 (1994-08-01), Pasdari et al.
patent: 6370950 (2002-04-01), Lammerink
patent: 6446503 (2002-09-01), Nukui et al.
patent: 6637264 (2003-10-01), Lotters et al.
patent: 1 139 073 (2001-10-01), None

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