SensyMaster FMT430, FMT450 THERMAL MASS FLOWMETER | OI/FMT430/450-EN REV. B 133
Sensor heat emission limit.
Heat emission limits of the measuring element
up-scaled. Flow rate too high, incorrect
Check the process conditions
Mass flowrate exceeds limits.
The mass flow is below or above the configured limit values ‘
Qm Massflow Min’ and ‘Qm
’.
Check the settings of the parameters in the ‘Process Alarm / ...Alarm Limits’ menu and
adjust if necessary.
Medium temperat exceeds
limits.
The measuring medium temperature is below or above the configured
limit values ‘Tm
’ and ‘Tm Temperature Max’.
Check the settings of the parameters in the ‘Process Alarm / ...Alarm Limits’ menu and
adjust if necessary.
Check measuring medium temperature.
Std.Volume flow exceeds
limits.
The standard volume flow is below or above the parameterized limit values "
Qv@
" and "Qv@ Volumeflow Max".
Check the settings of the parameters in the ‘Process Alarm / ...Alarm Limits’ menu and
adjust if necessary.
• Check volume flow rate.
Invalid Sensor configuration
Parameterization (configuration) of the device is incorrect.
Check parameterization (configuration)
Contact ABB Service
Thermal measuring element contaminated.
• Check thermal sensor elements and clean as needed Maintenance on page 135)
SensorMemory missing or defective
Check SensorMemory
Replace SensorMemory
Contact ABB Service
NV chips defect on
Motherboard.
Memory module on the motherboard defective.
Curr.Out 31/32 not calibrated.
/ 32, Uco not calibrated.
Contact ABB Service.
Curr.Out V1/V2 not calibrated.
-in card) V1 / V2 or V3 / V4 not calibrated.
Check plug-in card and replace if necessary.
Contact ABB Service.
V3/V4 not
Display value is<1600h at
Qmax.
The current counter reading has exceeded the display resolution.
Check the unit setting for the mass counters / volume totalizers and adjust if
Maintenance interval is
reached
Maintenance interval reached.
Perform maintenance work.
Start new maintenance interval in the ‘Diagnostics / ...Diagnosis Control’ menu.
calibrated.
Communicat. card not
responding
-in is not reacting.
Plug-in card is defective.
Contact ABB Service.