KROHNE DK 46 I-DK 47 I EN - Manual (Page 24)

6
TECHNICAL DATA
24
DK46I - DK47I
www.krohne.com 08/2008 • 4000360001 MA DK46I-47I-R01-en
Technical data
6.1 Functional principle
The flowmeter operates on the float measuring principle.
The measuring section consists of a glass cone in which a float can move freely up and down.
The medium flows through the flowmeter from bottom to top.
The float adjusts itself so that the buoyancy force A acting on it, the form drag W and its weight G
are in equilibrium.
G = A + W
The flow-dependent height of the float can take reading on a scale of the measuring glass.
The top edge of the float marks the reading line for flow values.
Figure 6-1: Operating principle
MA_DK46I_47I_R01_en_PRT.book Page 24 Tuesday, August 5, 2008 7:03 AM