Commissioning
Micropilot M FMR244 with FOUNDATION Fieldbus
56
Hauser
Function "medium property" (003)
This function is used to select the dielectric constant.
Selection:
•
unknown
• DC: < 1.9
• DC: 1.9 ... 4
• DC: 4 ... 10
• DC: > 10
⇒
E HAUSER
E
+
–
Product class
DC (
ε
r)
Examples
A
1,4...1,9
non-conducting liquids, e.g. liquefied gas
1)
1)
Treat Ammonia NH3 as a medium of group A, i.e. use FMR 230 in a stilling well.
B
1,9...4
non-conducting liquids, e.g. benzene, oil, toluene, …
C
4...10
e.g. concentrated acids, organic solvents, esters, aniline, alcohol, acetone, …
D
>10
conducting liquids, e.g. aqueous solutions, dilute acids and alkalis
