Endress+Hauser Levelflex FMP55, Operating Instructions Manual, Page: 160 / 214

Operating menu Levelflex FMP55 HART
160 Hauser
Ramp at echo lost 
Navigation  Setup → Advanced setup → Safety settings → Ramp at echo lost
Prerequisite Output echo lost (→  159) = Ramp at echo lost
Description 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 (→  160) (positive value)
C Ramp at echo lost (→  160) (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 settings → Blocking distance
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