How
Magnetic Flow meters Work
Magnetic flow
meters use Faraday’s Law of Electromagnetic Induction to determine the
flow of liquid in a pipe. In a magnetic flow meter, a magnetic field
is generated and channeled into the liquid flowing through the pipe. Following Faraday’s Law, flow of a conductive liquid through the magnetic field
will cause a voltage signal to be sensed by electrodes located on the flow tube
walls. When the fluid moves faster, more voltage is generated. Faraday’s Law
states that the voltage generated is proportional to the movement of the
flowing liquid. The electronic transmitter processes the voltage signal to
determine liquid flow.
ELECTRICAL
CONDUCTIVITY
There
is one important point when using electromagnetic flow meters. Because
electromagnetic flow meters are based on the laws of electromagnetic induction,
conductive liquids are the only liquids for which flow can be detected. Whether
it is a conductive liquid or not is determined by the presence of electrical
conductivity. So, just what is electrical conductivity?
Electrical
conductivity generally is a value that expresses the ease for electricity to
flow. The opposite numerical value is resistivity, which expresses the level of
difficulty for electricity to flow. For units, S/cm (siemens per centimeter) is
primarily used. To determine how easily electricity will flow, 1 cm² electrodes
are placed 1 cm apart. Using tap water at 100 to 200 μS/cm, mineral water at
500 μS/cm or more, and pure water at 0.1 μS/cm or less as samples, we can
provide examples of actual measured electrical conductivity.
Application
: Water/Waste water Industry, Chemical,
Food & Beverage, Oil & Gas (although
not for oil and gas fluids but in support of the processes),Power, Pulp &
Paper, Metals & Mining, and Pharmaceutical.
Specification
:
Size
: DN15~2200 ( 1/2" to 88" )
Accuracy : +/- 0.5%
Output
: 4-20mA/Pulse ;Hart ; Communication RS485
Type
: Remote & Compact Type Flange
Standard
: DIN / ANSI 150 /JIS
Temperature
: -20~120Deg C
Liner
: PTFE/PU /PFA/Rubber/etc...
Power
Supply : 85-250Vac/24VDC
for
more information
Email
: info.flowsys@lkssb.com.my
Boiler Tube Cleaning Tools 
