Flow Rate Indication Is Not Correct - Toshiba LF516 Instruction Manual

13.2.2 Flow rate indication is not correct.

START
Is the flow range correctly
set?
Is zero point correctly set?
Is the excitation 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
YES
NO
YES
NO
YES
YES
NO
NO
YES
YES
NO
NO
×
100%
YES
− 141 −
Set correctly. Refer to
Chapter 8, "Configuration
Parameter Setting."
Perform the zero adjustment.
Refer to 6, "Operation"
Set correctly. Refer to 8,
"Configuration parameter
setting"
Clean the inside wall of the
detector pipe.
Design the output circuit so that
the output load resistance is less
than 750 .
Ω
Connect the two load resistors
in series, if necessary.
Calculate as shown on the left.
6 F 8 A 0 9 3 4