Important, I if conneetton pipe is conductive, If connection pipe is non-conductive – Toshiba LF434 User Manual
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TOSHIBA
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IMPORTANT
(1) The grounding terminal of the LF434/Lr404 ilowmeter should be grounded with
100 ohm or less ground resistance. Use a heavy copper braid or wire
(cross-sectional area .S..'? inm' minimLim) to ground the icrminaJ and make it as
short as possible, ITie terminal is M4 size and an M4-size crimped ring lug should
be used to connect the wire to the lermina!. Avoid a comirion ground where earth
current may flow'. An independent ground is preferable. See Figure 5,2. fora
conductive pipeline grounding and non-conductive pipeline grounding procedures.
(2) To prevent a tw'o-point grounding, ground the shielded cable on the receiving
instrument side.
I
If conneetton pipe is conductive:
Conned between the grounding terminal
and both ends of the mating flanges with
a heavy copper braid or wire
{cross-section 5,5 mm" minimum).
If connection pipe is non-conductive:
Use u heavy copper braid or wdre
(cross-section 5.5 mm^ minimum) to
ground he terminal with 100 ohm or
Jess ground resistance.
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