Endress+Hauser Levelflex FMP55 HART - Blocking Distance; Ramp at Echo Lost

Levelflex FMP55 HART Operating menu
Endress+Hauser 143
Ramp at echo lost 
Navigation  Setup → Advanced setup → Safety sett. → Ramp echo lost
Prerequisite Output echo lost (→  142) = Ramp at echo lost
Description Define the slope of the ramp in the case of a lost echo.
User entry Signed floating-point number
Factory setting 0.0 %/min
Additional information
t
min
0%
100%
A
B
C
A0013269
A Delay time echo lost
B Ramp at echo lost (→  143) (positive value)
C Ramp at echo lost (→  143) (negative value)
• The unit for the slope of the ramp is "percentage of the measuring range per minute" (%/
min).
• For a negative slope of the ramp: The measured value is continuously decreased until it
reaches 0%.
• For a positive slope of the ramp: The measured value is continuosly increased until it
reaches 100%.
Blocking distance 
Navigation  Setup → Advanced setup → Safety sett. → Blocking dist.
Description Specify upper blocking distance UB.
User entry 0 to 200 m
Factory setting • For coax probes: 0 mm (0 in)
• For rod and rope probes up to 8 m (26 ft): 200 mm (8 in)
• For rod and rope probes above 8 m (26 ft): 0.025 * Sondenlänge
Additional information Signals in the upper blocking distance are only evaluated if they have been outside the
blocking distance when the device was switched on and move into the blocking distance