132 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | OI/FCB400/FCH400-EN REV. E
… 10 Diagnosis / error messages
Overview
The counter readings and the states of the current outputs and the alarm output are represented by symbols; please see the table
below.
Symbol Description
Counter stop
— No change, current value
1) When the error occurs, the corresponding measurement variable is calculated with the temperature 20 °C.
2) When the error occurs, the corresponding measurement variable is set to the value with density = 1.
HOLD The last ‘good’ measured value is retained.
Alarm (general)
High alarm
Low alarm
Process values Counter
Current output
Priority
Error text
Qm [%, unit]
Qv [%, unit]
Density [g/cm
3
]
Temperature [°C]
Concentration [%]
Net mass flow
Standard density g/cm
3
]
Standard volume [20 °C]
All counters
98 No Frontend Board detected 0 0 1 20 0 0 1 0 –
96 DSP Failure on Frontend Board. 0 0 1 – 0 0 1 0 –
94 Safety Alarm Curr.Out 31/32 – – – – – – – – – –
93 Sensor amplitudeout of range. 0 0 1 – 0 0 1 0 –
92 FEB voltages outside range. 0 0 0 0 0 0 0 0 0
91 MB voltages outside range. – – – – – – – – –
90 Sensor temperature measure error
1) 1) 1) 20 1) 1) 1) 1) –
88 FEB communication error. EMC
disturbance.
0 0 1 20 0 0 1 0 –
86 Curr.Out 31/32 com error. – – – – – – – – – CO1 only
84 NV data defect. Data storage
irreparable.
0 0 1 20 0 0 1 0 –
82 Incompatible Frontend Board. 0 0 1 20 0 0 1 0 –
80 Density failure 0 0 1 20 0 0 1 0 –
78 Flowrate to zero 0 0 – – – 0 – 0 – In accordance with process value
76 All totalizer stopp. – – – – – – – – –
74 Totalizer reset. Reset of one or
more Totalizer
– – – – – – – – 0 –
72 Simulation is on. Simulating
process/output value.
– – – – – – – – – –
70 An alarm is simulated. – – – – – – – – –
65 CO 31/32 readbackcurrent deviates
– – – – – – – – – < 3.3 mA
60 Sensor driver current to high. – – – – – – – – – –
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