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6.3 Flow rate indication is not stable.
START
Is power supply voltage
within the specified range?
Are cables securely
connected?
Is the converter and
detector grounded with less
than 100Ωground
resistance?
Is the detector pipe filled
with fluid?
Is the fluid carrying
bubbles?
Is there high-voltage or large
current cable or equipment
near the flowmeter?
Contact your nearest Toshiba
representative.
Use the power supply within
NO
the specified range.
Connect each cable securely
NO
to the terminal board.
Ground the converter and
detector with a copper braid
NO
or wire(5.5 mm² minimum) to
a good earth ground (less than
100Ωground resistance).
Design piping so that the
YES
detector pipe is filled with
fluid all the time.
Design piping so that the
NO
fluid does not carry bubbles.
Install the flowmeter away
YES
from the equipment producing
electromagnetic or electro-
static interference.
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