Emerson 5301HxxxxxxxxxxxxxxZZ Series Reference Manual page 174

Service and troubleshooting
April 2019
Table 7-4: Measurement Status
Message
Reference pulse calculated
Reference pulse invalid
DeltaF not at setpoint
Tank signal clip warning
No surface echo found
Predicted level
No reference echo
Reduced reference echo
In full tank state
Sampling failed
Invalid volume value
174
(continued)
Description
The position of the reference pulse is
calculated from the internal reference
pulse.
An error in the reference pulse in the last
sampled tank signal.
The DeltaF is not correctly regulated.
The last Tank Signal was clipped.
The Surface Echo Pulse cannot be
detected.
Possible cause:
• Wrong surface threshold
• Liquid level in Blind Zone or below
probe end
The presented level is predicted. The
surface echo could not be detected.
The Reference Echo Pulse cannot be
detected.
Possible cause:
• The tank is full.
• The transmitter is configured with
wrong probe type.
• Reference Amplitude Threshold is
incorrect.
The reference echo has been found with
reduced amplitude.
The level measurement is in the full tank
state, waiting for a surface echo
detection at the top of the tank.
The sampling of the last tank signal failed. Check Warning Messages.
The given volume value is invalid. The
given measurements are simulated.
Reference Manual
00809-0100-4530
Action
No action needed.
Check Warning messages. If MicroWave
Module (MWM) Warning is active, this
might indicate a transmitter error.
Contact Emerson Service Department.
Check Warning Messages. If MicroWave
Module (MWM) Warning is active, this
might indicate a transmitter error.
Contact Emerson Service Department.
Check Warning Messages. If MWM
Warning is active, this might indicate a
transmitter error. Contact Emerson
Service Department.
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.
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.
• Check the product level.
• Check that correct probe type is
configured.
• Check Reference Amplitude
Threshold.
No action needed.
No action needed.
Check Volume Status for details.
Rosemount 5300 Level Transmitter