Yokogawa ADMAG AXF - Manual (Page 13)

IM 01E20D01-01E 3-3
3. INSTALLATION
• Mounting orientation
IMPORTANT
If electrodes are perpendicular to the ground, air
bubbles near the top or precipitates at the
bottom may cause measurement errors. Ensure
that the terminal box of a remote flowtube and
converter of an integral flowmeter are mounted
above the piping to prevent water from entering
them.
F0306.EPS
Correct
Incorrect
Electrode
Air bubble
Precipitate Electrode
Incorrect
Water can
seep into
the terminal
box.
Figure 3.1.6 Mounting Orientation
3.2 Handling Precautions
WARNING
The magnetic flowmeter is a heavy instrument.
Be careful that no damage is caused to person-
nel through accidentally dropping it, or by
exerting excessive force on the magnetic flow-
meter. When moving the magnetic flowmeter,
always use a trolley and have at least two
people carry it.
NOTE
This chapter describes the remote flowtube as
an example. The same attention must be paid to
the integral flowmeter.
3.2.1 General Precautions
(1) Precaution during Transportation
The magnetic flowmeter is packed tightly. When it is
unpacked, pay attention to prevent damaging the
flowmeter. To prevent accidents while it is being
transported to the installing location, transport it to the
site in its original packing.
CAUTION
In order to lift a magnetic flowmeter that is fitted
with eyebolts, proceed as in Figure 3.2.1. Never
lift it using a bar passed through the flowtube as
this damages the liner severely.
A vertical position, using
a block and tackle A horizontal position
F0307.EPS
Figure 3.2.1 Lifting Flowmeter
(2) Avoid Shocks from Impact
CAUTION
Care should be taken not to drop the flowmeter
or expose it to excessive shock. In particular, be
careful not to subject the flange surface to
shock. This may lead to liner damage which will
result in inaccurate readings.
(3) Flange Protection Covers
IMPORTANT
Keep the protective covering (i.e. the corrugated
cardboard or other cushioning material) in place
over the flange except when mounting the
flowmeter to the pipe.