2 flow rate indication is not correct – Toshiba LF516 User Manual

Page 142

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13.2.2 Flow rate indication is not correct.


Is the flow range correctly
set?

Set correctly. Refer to
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?

Set correctly. Refer to 8,
“Configuration parameter
setting”

NO

YES

Is

the

inside

wall

of

detector

pipe contaminated?

Clean the inside wall of the
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 .

NO

YES

Calculate as shown on the left.

Are there two load
resistors connected to the
output in parallel?

Connect the two load resistors
in series, if necessary.

YES

NO

NO

YES

Contact your nearest Toshiba
representative.

START

Is accuracy calculated as follows?

(Measured flow rate)-(Actual flow rate)

Actual flow rate

Ч

100%

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