Function "medium property" (003) – Lightning Audio 7532 User Manual
Page 50
Commissioning
Radar Tank Gauge
50
Installation and Operations Manual
Function "medium property" (003)
This function is used to select the dielectric constant.
Selection:
• unknown
• < 1.9
• 1.9 ... 4
• 4 ... 10
• > 10
3)Treat Ammonia NH3 as a medium of group A, i.e. always use a stilling well.
⇒
E
+
–
Product class
DK (
e
r)
Examples
A
1,4 … 1,9
non-conducting liquids, e.g. liquefied gas
3)
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