Toshiba LF150 Instruction Manual page 24

6.2 Flow rate indication is not correct.
START
Is the flow range correctly
set?
Is zero point correctly set?
Is the exciting current value
as stated on the flow
direction tag?
Is the inside wall of detector
pipe contaminated?
Is the output load resistance
as specified?
Are there two load resistors
connected to the output in
parallel?
Is accuracy calculated as follows?
(Measured flow rate)-(Actual flow rate)
Actual flow rate
Contact your nearest Toshiba
representative.
NO
NO
NO
YES
NO
YES
NO
×
100%
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Set correctly.
Refer to the Instruction
Manual of the Converter.
Conduct the zero adjustment.
Refer to the Instruction
Manual of the Converter.
Set correctly.
Refer to the Instruction
Manual of the Converter.
Clean the inside wall of the
detector pipe.
Design the output circuit so
that the output load resis-
tance is less than 1 kΩ.
Connect the two load resis-
tors in series, if necessary.
Calculate as shown on the
left.