Emerson Rosemount 3308 Series Reference Manual page 115

Reference Manual
00809-0100-4308
• Incorrect level readings (see
• Incorrect or missing interface level reading (see
• Power module troubleshooting (see
• Device display troubleshooting (see
• Wireless network troubleshooting (see
Table 6-6: Incorrect level readings
Symptom
The level readings do not correspond to a reference
measurement, for example a handgauged value.
There is no level reading.
Level spikes or level is suddenly reported as full or empty.
Level stuck in full.
Reference Manual
Table 6-6)
Table
Table 6-8)
Table 6-9)
Table 6-10)
Possible cause and recommended actions
• Check the Tank Height parameter, refer to
• Check Thresholds, refer to
• Run Verify Level, see
• Check transmitter configuration. Run Basic Setup, refer
to Configure using basic
• The tank is empty. No action is needed.
• Check Thresholds, refer to
• Check the Upper Product Dielectric Constant, see
Upper product dielectric
• The transmitter is configured with wrong Probe Type,
refer to Probe type.
• Check Thresholds, see
• The transmitter has locked on disturbing obstacles at
top of the tank. See
the tank for recommended actions.
• The surface is turbulent. Set the Performance Mode to
High to get a stable measurement signal, refer to
Resolve noise or weak surface
• The tank is full. Check the product level.
• Check Thresholds, see
• The transmitter has locked on disturbing obstacles at
top of the tank. See
the tank for recommended actions.
• The transmitter is configured with wrong Probe Type,
refer to Probe type.
• The reference peak is not detected since it is weaker
than the Reference Threshold. Adjust Reference
Threshold to an appropriate value so that reference
peak is not filtered out. Refer to
Service and troubleshooting
February 2020
6-7)
Tank
Adjust thresholds.
Run verify level.
setup.
Adjust thresholds.
constant.
Adjust thresholds.
Handling disturbances at the top of
echoes.
Adjust thresholds.
Handling disturbances at the top of
Adjust thresholds.
height.
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