Endress+Hauser Levelflex FMP51 Operating Instructions Manual page 182

Operating menu
Process property
Navigation
Description
Selection
Factory setting
Additional information
DC value lower medium
Navigation
Prerequisite
Description
User entry
Factory setting
Additional information
182
"Interface" submenu
Navigation  Setup → Advanced setup → Interface
 Setup → Advanced setup → Interface → Process property
Specify typical rate of change for the interface position.
• Fast > 1 m (40 in)/min
• Standard < 1 m (40in) /min
• Medium < 10 cm (4in) /min
• Slow < 1 cm (0.4in) /min
• No filter / test
Standard < 1 m (40in) /min
The device adjusts the signal evaluation filters and the damping of the output signal to the
typical rate of level change defined in this parameter:
Process property
Fast > 1 m (40 in)/min
Standard < 1 m (40in) /min
Medium < 10 cm (4in) /min
Slow < 1 cm (0.4in) /min
No filter / test
 Setup → Advanced setup → Interface → DC lower medium
Operating mode (→  159) = Interface or Interface with capacitance
Specify the relative dielectric ocnstant ε
1 to 100
80.0
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)
The factory setting, ε
Levelflex FMP51, FMP52, FMP54 FOUNDATION Fieldbus
Step response time / s
5
15
40
74
2.2
of the lower medium.
r
= 80, is valid for water at 20 °C (68 °F).
r


Endress+Hauser