Endress+Hauser Levelflex FMP51 Operating Instructions Manual page 142

Description of device parameters (operating menu)
Output echo lost
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Description
Selection
Factory settings
Value echo lost
Navigation
Condition
Description
Input range
Factory setting
Additional information
Ramp echo lost
Navigation
Condition
142
The "Safety settings" submenu
Setup ® Advanced setup ® Safety settings ® Output echo lost
Defines the output signal in the case of a lost echo.
• Last valid value
The last valid value is kept in the case of a lost echo.
• Ramp echo lost
In the case of a lost echo the output value is continously shifted towards 0% or 100%. The slope
of the ramp is defined in the Ramp echo lost parameter.
• Value echo lost
In the case of a lost echo the output assumes the value defined in the Value echo lost
parameter.
• Alarm
In the case of a lost echo the device generates an alarm and the output assumes the value
defined in the Failure mode parameter .
Last valid value
Setup ® Advanced setup ® Safety settings ® Value echo lost
Only visible if the Value echo lost option has been selected in the Output echo lost parameter.
Defines the constant output value in the case of a lost echo.
0 to 200000
0
The unit is the same as for the output value:
• Without linearization: As defined in the Level unit parameter (® ä 130).
• With linearization: As defined in the Unit linearized parameter (® ä 137).
Setup ® Advanced setup ® Safety settings ® Ramp echo lost
Only visible if the Ramp echo lost option has been selected in the Output echo lost parameter.
Levelflex FMP51, FMP52, FMP54
Endress+Hauser