YOKOGAWA ADMAG AXR - Flowmeter Piping

<3. INSTALLATION>
3-4
IM 01E30D01-01EN
(4) Terminal Box Cover
IMPORTANT
As it is possible that the insulation will
deteriorate, do not open the terminal box cover
until it is time to wire it.
(5) Long-term Non-use
IMPORTANT
Itisnotdesirabletoleavetheowmeterunused
for a long term after installation. If this situation
isunavoidable,takecareoftheowmeterby
observing the following.
• Conrmationofsealingconditionsforthe
owmeter
Conrmthattheterminalboxscrewandwiringports
are well sealed. Equip the conduit piping with drain
plugs or waterproof glands to prevent moisture or
waterfrompenetratingintotheowmeterthrough
the conduit.
• Regularinspections
Inspect the sealing conditions as mentioned above,
and the inside of the terminal box at least once a
year. Also, due to rain, etc. when it is suspected
that water may have penetrated into the inside
owmeterperformsupplementaryinspections.
3.2.2 Flowmeter Piping
CAUTION
Misaligned or slanted piping can lead to leakage
anddamagetotheanges.
(1) Correct any misaligned or slanted piping, and
any gaps that may exist between mounting
angesbeforeinstallingtheowmeter(Read
Figure 3.2.1).
Slanted
Misaligned
F0307.ai
Figure 3.2.1 Slanted and Misaligned Flowmeter
Piping
(2) Inside a newly installed pipeline, there may
be some foreign substances such as residue
from welding or wood chips. Remove them
byushingthepipingbeforemountingthe
owmeter.Thispreventstheliningfrom
being damaged, as well as the occurrence
of erroneous measured signals resulting
from foreign substances passing through the
owtubeduringmeasurement.