Important, I if connection pipe is conductive, If connection pipe is non-conductive – Toshiba LF494 User Manual
Page 27: Figure 5.2 grounding procedure, Toshiba
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TOSHIBA
6 F 8 A 0 7 7 4
IMPORTANT
(
1
) The grounding terminal of the LF494/UH04 flo^mEtcr should be grounded with
1 0 0
ohm or less ground resiiilance. Use a heavy copper braid or wire
(cross-seciioniil area
5 . 5
mn:" minimum) to ground the terminal and make it as
short as possible. The icnninal is M4 size and an M4-sizc crimped ring lug should
be used lo connect the wire to the tenninaU Avoid a common ground where earth
current may flow . An independent ground is preferable^ See Figure
5 . 2 .
for a
conductive pipeline grounding and noii-conducrive pipeline grounding procedures.
(2) To prevent a wo-poinl grounding, ground the shielded cable on the receiving
inshiimenl side.
I
If connection pipe is conductive:
Connect between the grounding terminal
and both ends of the mating flanges with
a heavy copper braid or wire
(cross-section 5.5 min‘ minimum).
If connection pipe is non-conductive:
Use a heavy copper braid or wire
(cross-scciiiin 5.5 mm^ minimum) to
ground he terminal with UK) ohm or
less ground resistance*
Figure 5.2 Grounding Procedure
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2 6
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