Levelflex FMP51 Modbus
Endress+Hauser 13
Input
Measured variable
The measured variable is the distance between the reference point and the product surface.
Subject to the empty distance entered "E" the level is calculated.
Alternatively, the level can be converted into other variables (volume, mass) by means of
linearization (32 points).
Measuring range
The following table describes the media groups and the possible measuring range as a function of
the media group.
Levelflex FMP51
Media group DC (ε
r
) Typical liquids
Measuring range
1)
bare metallic
rod probes
bare metallic
rope probes
coax probes
1 1.4...1.6 condensed gases, e.g. N
2
, CO
2
on request 6 m (20 ft)
2 1.6...1.9 • liquefied gas, e.g. propane
• solvent
• Freon
• palm oil
• one-piece: 4 m (13 ft)
• divisible: 10 m (33 ft)
15 to 22 m (49 to 72 ft) 6 m (20 ft)
3 1.9...2.5 mineral oils, fuels • one-piece: 4 m (13 ft)
• divisible: 10 m (33 ft)
22 to 32 m (72 to 105 ft) 6 m (20 ft)
4 2.5...4 • benzene, styrene, toluene
• furan
• naphthalene
• one-piece: 4 m (13 ft)
• divisible: 10 m (33 ft)
32 to 42 m
(105 to 138 ft)
6 m (20 ft)
5 4...7 • chlorobenzene, chloroform
• cellulose spray
• isocyanate, aniline
• one-piece: 4 m (13 ft)
• divisible: 10 m (33 ft)
42 to 45 m
(138 to 148 ft)
6 m (20 ft)
6 > 7 • aqueous solutions
• alcohols
• ammonia
• one-piece: 4 m (13 ft)
• divisible: 10 m (33 ft)
45 m (148 ft) 6 m (20 ft)
1) The measuring range for interface measurement is limited to 10 m (33 ft).
• Reduction of the max. possible measuring range through buildup, above all of moist products.
• Due to the high diffusion rate of ammonia it is recommended with gas-tight bushing
2)
for
measurements in this medium.
2) optionally available for FMP51
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