10
APPENDICES
156
OPTIFLEX 1300 C
www.krohne.com
01/2008 • 4000172301 - HB OPTIFLEX 1300 R02 en
E
Electromagnetic compatibility
Electromagnetic compatibility
Electromagnetic compatibility
Electromagnetic compatibility Defines how much a device influences or is influenced by other devices that
generate electromagnetic fields during operation. Refer to European
standard EN 61326-1 A1+A2 for further details.
Electromagnetic field
Electromagnetic field
Electromagnetic field
Electromagnetic field
This is a physical field that is produced by electrically-charged objects and
which may affect the behaviour of other objects near to the field.
Emulsion
Emulsion
Emulsion
Emulsion
These are small particles of one liquid that readily disperse in another
liquid. Usually An emulsion is usually a dispersion of water in an oil or a
dispersion of oil in water. Possible causes are mixing or tank filling.
Emulsions usually separate back into their constituent parts over time.
For accurate interface measurement to be possible, the top product and
emulsion must have stable dielectric constant values. The way the
instrument measures interface will depend on the type of emulsion:
If the emulsion is a constant mix of more than 5 % water, the instrument
measures interface from the top of the emulsion.
If the emulsion separates gradually from 0 to 100% water, the instrument
measures interface at the bottom of the emulsion.
Figure 10-1:
Types of emulsion
1
Constant-mix emulsion
2
Gradually mixed emulsion
3
Interface distance
4
Oil
5
Water
6
Emulsion (constant mix, >5% of water)
7
Emulsion (gradually mixes with water)
3
5
4
7
2
1
3
5
4
6
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