Endress+Hauser Fieldbus Levelflex M FMP41C Operating Instructions Manual page 47

Levelflex M FMP41C with FOUNDATION Fieldbus
ENDRESS + HAUSER
⇒
–
+ E
!
Endress + Hauser
concrete wall
The "concrete wall" option takes into account the signal-damping property of concrete walls when
mounting with < 1 m distance to the wall.
Function "medium property" (003)
This function is used to select the dielectric constant.
Selection:
• unknown
• 1.4 ... 1.6 (use coaxial or rod probe with installation in metallic pipes ≤ DN 150)
• 1.6 ... 1.9
• 1.9 ... 2.5
• 2.5 ... 4.0
• 4.0 ... 7.0
• > 7.0
ε
Media group DK ( r)
1 1,4...1,6
2 1,6...1,9
3 1,9...2,5
4 2,5...4
5 4...7
6 > 7
The lower group applies to very loose or loosened bulk solids. Reduction of the max. possible
measuring range by means of:
• extremely loose surfaces of bulk solids, e.g. bulk solids with low piled density when filled
pneumatically.
• Build-up, primarily of moist products.
Note!
Due to the high diffusion rate of ammonia it is recommended to use the FMP45 with gas-tight
bushing for measurements in this medium.
Typical liquids
– Condensed gases, z.B. N , CO
2 2
– Liquefied gas, e.g. Propane
– Solvent
– Frigen / Freon
– Palm oil
– Mineral oils, fuels
– Benzene, styrene, toluene
– Furan
– Naphthalene
– Chlorbenzene, chloroform
– Cellulose spray
– Isocyanat, aniline
– Aqueous solutions
– Alcohols
– Acids, alkalis
Commissioning
Typ. measuring range
4 m (157"), when installed in metallic pipes
9 m (354")
12 m (472")
16 m (629")
25 m (984")
30 m (1181")
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