Manual

<6. PARAMETER DESCRIPTION>
6-44
IM 01E30D01-01EN
6.5.3 Alarms & Warning Messages
System Alarms (Device breakdown or inability to obtain correct measurements.)
Displayunit/BRAIN
(60) content
Alarm countermeasure
message on display unit
NE-107
status
Alarm description Countermeasure
1
0:μPFault Contactnearofceor
service center
F Microprocessor (CPU) failure Contact your nearest
Y
okogawaofceorservice
center
11:EEPROM Fault F EEPROM failure
12:Sub uP Fault F Substitute mcroprocessor (CPU) failure
13:EXPwrFault F Extitation power circuit failure
14:A/D(S) Fault F A/D converter failure
15:A/D(I) Fault
16:Analog Fault F Analog circuit failure
17:Coil Open F Flowtube coil is open-circuit
18:Coil Short F Flowtube coil is short-circuit
19:Excite Error F Excitation circuit failure
20:Pulse Error F Discrepancy of pulse count
21:EEPROMDt F EEPROM default values
Process Alarms (Device is normal but process-related errors make correct measurement impossible.)
Displayunit/BRAIN
(60) content
Alarm countermeasure
message on display unit
NE-107
status
Alarm description Countermeasure
3
0:SigOverow Check signal cableand
grounding
S Input signal error Carry out an investigation as follows:
• Check the signal cable for breakage.
• C
heckforstraycurrentsintheuid.
• Check the grounding.
•Checkwhetherowtubeisllingwithuid.
• Check the electrode adhesion.
31:Empty Pipe F
illowtubewithuid S Flowtubeisnotlledwithuid Filltheowtubewithuid.
32:H/L Alm Checktheowrateand
setting value
–
Flow rate alarm for greater
than High limit value or less
than Low limit value.
Checktheowrateandsettingvalueof
High limit and Low limit.
33:Adhesion Alm Clean electrodes S Electrode adhesion alarm Clean the electrodes.