YOKOGAWA ADMAG AXR - 4. WIRING; 4.1 Wiring Precautions

<4. WIRING>
4-1
IM 01E30D01-01EN
4. WIRING
This section describes the wiring of the integral
owmeter.
WARNING
Thewiringofthemagneticowmetermust
be performed by expert engineer or skilled
personnel. No operator shall be permitted to
perform procedures relating to wiring.
CAUTION
Once all wiring is complete, check the
connections before applying power to the
instrument. Improper arrangements or wiring
may cause a unit malfunction or damage.
4.1 Wiring Precautions
Be sure to observe the following precautions when
wiring:
CAUTION
• Donotconnectcablesoutdoorsinwet
weather in order to prevent damage from
condensation and to protect the insulation,
e.g.insidetheterminalboxoftheowmeter.
• Allthecableendsmustbeprovidedwith
round crimp-on terminals and be securely
wired.
• Thecablemustberoutedinsteelconduit
tube16(JISC8305)orexibleconduit
tubes 15 (JIS C 8309). Keep the conduits or
exibletubeswatertightusingsealingtape.
• Whenwaterproofglandsorunionequipped
waterproof glands are used, avoid tightening
the glands with an excessive torque.
• Aplugisprovided.Usethisplugtocover
the unused wiring port when wiring the
instrument with only one.
• Besuretoturnthepoweroffbeforeopening
the terminal box cover.
• Beforeturningthepoweron,tightenthe
terminal box cover securely.
• Theterminalboxcoverislockedbythe
special screw. In case of opening the
terminal box cover, use the hexagonal
wrench (nominal size 3). For handling the
locking screw, read Section 4.5.
• Besuretolockthecoverbythespecial
screw using the hexagonal wrench (nominal
size 3) after installing the cover. For handling
the locking screw, read Section 4.5.
• Explosionprooftypesmustbewiredin
accordancewithspecicrequirement(and,
in certain countries, legal regulations) in
order to preserve the effectiveness of their
explosion proof features.