Yokogawa digitalYEWFLO (DY) - Manual (Page 109)

<12. TROUBLESHOOTING>
12-3
IM 01F06A00-01EN
12.4 Output is Indicated at Zero Flow
Is fluid flowing?
Are parameters configured
correctly at operating
conditions?
Stop flow.
No
Yes
Configure the parameters correctly.
No
Are the load resistance
and supply voltage within
the tolerance limits?
Yes
Adjust to within the tolerance limits.
Yes
No
Yes
Is digitalYEWFLO
properly grounded? No
Ground digitalYEWFLO.
No
Yes
Does low cut adjust?
Adjust to low cut, refer to Section
10.2 "Adjustment for Manual Mode"
Does the tuning execute?
No
Execute the tuning, refer to Section
10.2 "Adjustment for Manual Mode"
Yes
Does high vabrations
occurs in pipeline?
No
Eliminate vibration noise using pipe
support.
Yes
Are pulsation produced?
Check the pipeline conditions,
refer to Chapter 3 "INSTALLATION."
F1203.ai
Yes Was a faulty area
found with selfdiagnosis?
No
Check for recovery measures, refer to Section
6.5 "Self-Diagnostic (Error Code List)."
‡,IDEXLOWLQLQGLFDWRULVDWWDFKHG
check the display of the error code.
‡&RQQHFWDKDQGKHOGWHUPLQDODQG
check self-diagnostic.