Operation Manual

8-13
IM 1F5B2-01E
8. MAINTENANCE
■ The flowrate reading is inconsistent.
Recheck the
setting of the
parameter.
START
Is the flowrate range
consistent with that on the
data plate?
Are the parameters
configured correctly?
The reading is
inconsistent.
YES
NO
NO
The output circuit of the
converter is faulty.
Replace the converter.
YES
YES
NO
NO
NO
Change the
flowrate range.
Configure the
parameters
correctly.
Is the receiving
resistance correct?
Change the
receiving
resistance.
Is the output consistent with
the reading of the indicator/
totalizer component or
BT200?
Is the output’s flowrate
reading consistent with the
value calculated from the
frequency at terminal P?
Check the piping conditions:
• Straight lengths of pipeline (page 4-1)
• Protrusion of gaskets (page 4-4)
• Loose piping connections
• Deposits inside piping
Contact Yokogawa’s
service personnel.
YES
NO
Are the load resistance
and supply voltage within
the tolerance limits?
Adjust to within
the tolerance
limits.
YES
YES