Technical data, Technical data 8.1 measuring principle (twin tube) – KROHNE MFC 400 EN User Manual

Page 120

Text mode
Original mode

TECHNICAL DATA

120

MFC 400

www.krohne.com

08/2013 - 4002075802 - MA MFC 400 R02 en

Technical data

8.1 Measuring principle (twin tube)

A Coriolis twin tube mass flowmeter consists of two measuring tubes 1 a drive coil 2 and two
sensors (3 and 4) that are positioned either side of the drive coil.

When the meter is energised, the drive coil vibrates the measuring tubes causing them to
oscillate and produce a sine wave 3. The sine wave is monitored by the two sensors.

Static meter not energised and with no flow

1 Measuring tubes
2 Drive coil
3 Sensor 1
4 Sensor 2

Energised meter

1 Measuring tubes
2 Direction of oscilation
3 Sine wave

.book Page 120 Monday, August 26, 2013 9:05 AM