Micropilot FMR60B PROFINET with Ethernet-APL
8 Endress+Hauser
Media groups
• A0 (ε
r
1.2 to 1.4)
e.g. n-butane, liquid nitrogen, liquid hydrogen
• A (ε
r
1.4 to 1.9)
Non-conductive liquids, e.g. liquefied gas
• B (ε
r
1.9 to 4)
Non-conductive liquids, e.g. gasoline, oil, toluene, etc.
• C (ε
r
4 to 10)
e.g. concentrated acid, organic solvents, ester, aniline, etc.
• D (ε
r
>10)
Conductive liquids, aqueous solutions, diluted acids, bases and alcohol
Measurement of the following media with absorbing gas phase
For example:
• Ammonia
• Acetone
• Methylene chloride
• Methyl ethyl ketone
• Propylene oxide
• VCM (vinyl chloride monomer)
To measure absorbing gases, either use a guided radar, measuring devices with another
measuring frequency or another measuring principle.
If measurements must be performed in one of these media, please contact Endress+Hauser.
For the dielectric constants (DC values) of many media commonly used in industry, please refer
to:
• Dielectric constant (DC value) Compendium CP01076F
• The Endress+Hauser "DC Values app" (available for Android and iOS)
Measurement in storage vessel
Storage vessel - measuring conditions
Calm medium surface (e.g. bottom filling, filling via immersion tube or rare filling from above)
Integrated antenna, PEEK, 20 mm (0.75 in) in storage vessel
Media group Measuring range
A0 (ε
r
1.2 to 1.4) 1.5 m (5 ft)
A (ε
r
1.4 to 1.9) 2.5 m (8 ft)
B (ε
r
1.9 to 4) 5 m (16 ft)
C (ε
r
4 to 10) 8 m (26 ft)
D (ε
r
>10) 10 m (33 ft)
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