Alarms & Warning Messages - YOKOGAWA ADMAG AXR User Manual

6.5.3 Alarms & Warning Messages
System Alarms (Device breakdown or inability to obtain correct measurements.)
Display unit/BRAIN Alarm countermeasure
(60) content message on display unit
10:μP Fault Contact near office or
service center
11:EEPROM Fault
12:Sub uP Fault
13:EX Pwr Fault
14:A/D(S) Fault
15:A/D(I) Fault
16:Analog Fault
17:Coil Open
18:Coil Short
19:Excite Error
20:Pulse Error
21:EEPROM Dflt
Process Alarms (Device is normal but process-related errors make correct measurement impossible.)
Display unit/BRAIN Alarm countermeasure
(60) content message on display unit
30:Sig Overflow Check signal cableand
grounding
31:Empty Pipe Fill flow tube with fluid
32:H/L Alm Check the flow rate and
setting value
33:Adhesion Alm Clean electrodes
<6. PARAMETER DESCRIPTION>
NE-107
Alarm description
status
F Microprocessor (CPU) failure
F EEPROM failure
F Substitute mcroprocessor (CPU) failure
F Extitation power circuit failure
F A/D converter failure
F Analog circuit failure
F Flowtube coil is open-circuit
F Flowtube coil is short-circuit
F Excitation circuit failure
F Discrepancy of pulse count
F EEPROM default values
NE-107
Alarm description
status
S Input signal error
S Flowtube is not filled with fluid Fill the flowtube with fluid.
– Flow rate alarm for greater
than High limit value or less
than Low limit value.
S Electrode adhesion alarm
Countermeasure
Contact your nearest
Yokogawa office or service
center
Countermeasure
Carry out an investigation as follows:
• Check the signal cable for breakage.
• Check for stray currents in the fluid.
• Check the grounding.
• Check whether flowtube is filling with fluid.
• Check the electrode adhesion.
Check the flow rate and setting value of
High limit and Low limit.
Clean the electrodes.
IM 01E30D01-01EN
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