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188
Reference Manual
00809-0100-4530, Rev DD
May 2016
7.22.4
Measurement status
Measurement Status messages that may appear on the Integral Display, on the Field
Communicator, in DeltaV, or in RRM are shown in
Table 7-7. Measurement Status
Message
Description
Action
Full tank
The level measurement is in Full Tank state.
The transmitter waits for the surface echo to
be detected at the top of the tank.
No action needed.
Empty tank
The level measurement is in Empty Tank state.
The transmitter waits for the surface echo to
be detected at the bottom of the tank.
No action needed.
Probe missing
Probe is not detected.
Check that the probe is correctly
mounted. Check the connection between
probe and transmitter head.
Seal contaminated
Suspected contamination of the seal has been
detected.
Check if the seal connection with the
probe is contaminated.
Reference pulse calculated
The position of the reference pulse is
calculated from the internal reference pulse.
No action needed.
Reference pulse invalid
An error in the reference pulse in the last
sampled tank signal.
Check Warning messages. If MicroWave
Module (MWM) Warning is active, this
might indicate a transmitter error.
Contact Emerson Process Management
Service Department.
DeltaF not at setpoint
The DeltaF is not correctly regulated.
Check Warning Messages. If MicroWave
Module (MWM) Warning is active, this
might indicate a transmitter error.
Contact Emerson Process Management
Service Department.
Tank signal clip warning
The last Tank Signal was clipped.
Check Warning Messages. If MWM
Warning is active, this might indicate a
transmitter error. Contact Emerson
Process Management Service
Department.
No surface echo found
The Surface Echo Pulse cannot be detected.
Possible cause:
Wrong surface threshold
Liquid level in Blind Zone or below probe
end
Check if the configuration can be changed
so that the surface echo can be tracked in
this current region.
View the Echo Curve plot and check
surface threshold.
Predicted level
The presented level is predicted. The surface
echo could not be detected.
Check if the configuration can be changed
so that the surface echo can be tracked in
this current region.
View the Echo Curve plot and check
surface threshold.