YOKOGAWA ADMAG AXR - 11.4 Adhesion diagnostic function

<11. MAINTENANCE>
11-6
IM 01E30D01-01EN
11.4 Adhesion diagnostic
function
Thelong-termmeasurementofadhesiveuids
mayadverselyaffecttheowmeasurementdue
to insulating materials adhering to the electrode,
which could cause the output vibration to increase
ormakeitimpossibletomeasuretheowrate.
This function checks the level of adhesion by
measuring the resistance value.
NOTE
Adhesion Diagnostic Function
• Thisfunctiondiagnoseadhesionusing
electrode resistance values.
• Theresultofadhesiondiagnosisisdisplayed
at K12:Adh Measure Value.
• When“Adhesioncheck”hasbeensetfor
B41/H11:DisplaySelect2 or B42/H12:
Display Select 3, the diagnose adhesion
is indicated on the display unit using four
different levels.
• IfthejudgmentvalueforLevel3is
exceeded, a warning is displayed; and if
the value for Level 4 is exceeded, an alarm
or warning is displayed depending on the
setting condition at G29.
• Availableconductivityforthisfunctionis
limited to 10 µS/cm.
Make sure to use the adhesion diagnostic
function with the greater conductivity than
the above mentioned value.
IMPORTANT
• Parameterscannotbesetduringexecution
(approximately 5 minutes).
• Adhesiondiagnosisshouldonlybecarried
outwhentheuidvelocityiscompletelyzero
by closing the valve.
• Flowmeasurementisnotperformedduring
execution. While adhesion diagnosis is being
carried out, normally a current of 4 mA is
output. When adhesion diagnosis is carried
out, change the control loop to the manual
moderst.
• Adhesiondiagnosiscannotbecarriedout
while an alarm is occurring.