Emerson Rosemount 8800D Series Reference Manual page 97

Reference Manual
00809-0100-4772, Rev FA
Table 7-2. Transducer Block Status Definitions (TB_ELECTRONICS_STATUS)
0x00200000 FIXED_TEMP_ACTIVE: An open thermocouple has been
detected and the transmitter is configured to use the
Fixed Process Temperature as a substitute for the
measured process temperature.
0x00400000 PT_GT_DENSITY_CALC: The measured process
temperature is above the limits for temperature
compensated density calculations.
0x00800000 PT_LT_DENSITY_CALC: The measured process
temperature is below the limits for temperature
compensated density calculations.
0x01000000 PT_GT_USL: The measured process temperature is
greater than the upper temperature sensor limit.
0x02000000 PT_LT_LSL: The measured process temperature is less
than the lower temperature sensor limit.
0x04000000 FLOW_SIGNAL_INJECT: The transducer block is
receiving its flow signal from an external signal
generator.
0x08000000 FLOW_EMULATION_MODE: The transducer block is
receiving its flow signal from the internal signal
generator.
0x10000000 SENSOR_OVERRANGE: The transducer has detected a
flow level that exceeds the upper sensor range. The
status associated with the primary value (PV) and
secondary value (SV) should also be BAD.
0x20000000 PV_OVERRANGE: The transducer has detected a flow
level that exceeds the PV upper range. The status
associated with the PV and SV should also be
UNCERTAIN. The flow is still measurable, but accuracy is
not guaranteed.
0x40000000 IN_LOW_FLOW_CUTOFF: The transducer has detected
that the flow has dropped below the configured
low-flow cutoff value. The reported flow value will now
damp to zero.
1. If a transmitter power reset does not clear the error message, the electronics will need to be replaced.
2. If the process temperature exceeds the specified limits of the temperature sensor, the indicated process temperature may not be within the rated
specifications of ± 2.2 °F (1.2 °C).
Troubleshooting
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Troubleshooting
Check the thermocouple
connection to the
transmitter housing.
Replace the
thermocouple.
FAULT PT>CF Density calculation is
limited to the density
calculated at the upper
limit. Verify the measured
process temperature.
FAULT PT<CF Density calculation is
limited to the density
calculated at the lower
limit. Verify the measured
process temperature.
FAULT PT>SL The process temperature
measurement may not be
accurate.
FAULT PT<SL The process temperature
measurement may not be
accurate.
SEnSOr OFFLN Informational only.
SIGnAL SIMUL Informational only.
FAULT PV>SL Verify process fluid
configuration. Reduce
flow to prevent damage
to the sensor.
Reduce flow below the PV
upper range value.
Informational only.
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