Endress+Hauser Micropilot FMR62 - Input Specifications; Measured Variable and Range

Micropilot FMR62
8 Endress+Hauser
Input
Measured variable
The measured variable is the distance between the reference point and the product surface. The level
is calculated based on "E", the empty distance entered. Optionally, the level can be converted to other
variables (volume, mass) by linearization (32 value pairs).
Measuring range Maximum measuring range
FMR62
Antenna Maximum measuring range
Integrated, PEEK, 20 mm / 3/4" 10 m (32.8 ft)
Integrated, PEEK, 40 mm / 1-1/2" 22 m (72 ft)
PTFE cladded flush mount, 50 mm / 2" 50 m (164 ft)
PTFE cladded flush mount, 80 mm / 3" 80 m (262 ft)
Usable measuring range
The usable measuring range depends on the antenna size, the medium's reflective properties, the
installation position and any possible interference reflections.
The media groups and the possible measuring range are described as a function of the application
and media group in the following section. If the dielectric constant of the medium is not known, to
ensure a reliable measurement assume the medium belongs to group B.
Media groups
Media group ε
r
Example
A0 1.2 to 1.4 n-butane, liquid nitrogen, liquid hydrogen
A 1.4 to 1.9 Non-conductive liquids, e.g. liquefied gas
B 1.9 to 4 Non-conductive liquids, e.g. gasoline, oil, toluene, etc.
C 4 to 10 e.g. concentrated acid, organic solvents, ester, aniline, alcohol, etc.
D > 10 Conductive liquids, aqueous solutions, diluted acids and bases
Measurement of the following media with absorbing gas phase
For example:
• Ammonia (pure - 100%)
• 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 dielectric constants (DC values) of many media commonly used in various industries refer
to:
• the Endress+Hauser DC manual (CP01076F)
• the Endress+Hauser "DC Values App" (available for Android and iOS)