Toshiba – Toshiba LF494 User Manual
Page 142
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TOSHIBA
(3) Flow rate ladication
la
not stable.
START
ÏS power supply voltage
within the specified range?
NO
YES
Are cables securely
connected?
YES
Is the flowmeter grounded
with 100 Q or less ground
resistance?
YES
Is the detector pipe filled
with fluid?
YES
Is the Huid carrying
bubbles?
NO
Is there high-voltage or large
current cable or equipment
near the flowmeter?
NO
YES
Contact your nearest Toshiba
representative.
6 F 8 A 0 7 7 4 .
Use a power supply within
the specified range.
NO
Connect each cable securely
to the terminal board.
Ground the flowmeter with a
copper braid or wlre(5.5 mm^
minimum) to a good earth
ground (100 Dor less ground
resistance).
NO
Design piping so that the
)
*
detector pipe is filled with
fluid all the time.
Design piping so that the tluid
does not carry bubbles.
YES
Install the flowmeter away
'
l
from equipment producing
}
►
electromagnetic or
electro- static interference.
"
1 4 1
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