Toshiba lf546 User Manual
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13.2.2 Flow rate indication is not correct.
Is the flow range correctly
set?
set?
Set correctly. Refer to
Chapter 8, “Configuration
Parameter Setting.”
Chapter 8, “Configuration
Parameter Setting.”
NO
YES
Is zero point correctly set?
Perform
the
zero
adjustment.
Refer to 6, “Operation”
NO
YES
Is
the
excitation
current
value as stated on the
flow direction tag?
flow direction tag?
Set correctly. Refer to 8,
“Configuration parameter
setting”
“Configuration parameter
setting”
NO
YES
Is
the
inside
wall
of
detector
pipe contaminated?
Clean the inside wall of the
detector pipe.
detector pipe.
YES
NO
Is
the
output
load
resistance
as specified?
Design the output circuit so that
the
output
load resistance is less
than 750
Ω
.
NO
YES
Calculate as shown on the left.
Are there two load
resistors connected to the
output in parallel?
resistors connected to the
output in parallel?
Connect the two load resistors
in series, if necessary.
in series, if necessary.
YES
NO
NO
YES
Contact your nearest Toshiba
representative.
representative.
START
Is accuracy calculated as follows?
(Measured flow rate)-(Actual flow rate)
Actual flow rate
×
100%