<3. Installation>
11
IM 01E24A01-01EN
(9) Mounting Positions
Pipes must be fully lled with liquids.
IMPORTANT
It is essential that pipes remain fully lled at all times,
otherwise ow rate indications may be affected and
measurement errors may be caused.
Piping shall be designed so as to maintain the interior of
the sensor lled with uids.
Vertical mounting is effective in such cases as
when uids tend to separate or solid matter may be
precipitated. When employing vertical mounting, direct
the uids from the bottom to the top to ensure that the
pipes remain fully lled.
h
h>0
h>0
h
(Incorrect)
(Correct) (Incorrect)
(Correct)
Figure 3.1.4 Mounting Positions
Avoid air bubbles.
IMPORTANT
If air bubbles enter a measurement pipe, ow rate
indications may be affected and measurement errors
may be caused.
In cases where uids contain air bubbles, piping must
be designed to prevent them from accumulating in the
measurement pipe of a sensor.
If a valve exists near the owmeter, try to mount the
owmeter on the valve’s upstream side in order to
prevent a possible reduction of pressure inside the pipe,
thereby avoiding the possibility of air bubbles.
(Correct)
(Incorrect)
Valve
(Correct)
(Incorrect)
Figure 3.1.5 Avoiding Air Bubbles
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 sensor and transmitter of an integral
owmeter are mounted above the piping to prevent
water from entering them.
(Incorrect)
Electrode
Air bubble
Precipitate
Electrode
(Incorrect)
Water can
seep into
box.
Air bubble
Figure 3.1.6 Mounting Orientation
3.2 Handling Precautions
WARNING
The magnetic owmeter is a heavy product.
Be careful that no damage is caused to personnel
through accidentally dropping it, or by exerting
excessive force on the magnetic owmeter. When
moving the magnetic owmeter, always use a trolley
and have at least two people carry it.
NOTE
This section describes the remote sensor as an
example. The same attention must be paid to the
integral owmeter.
3.2.1 General Precautions
(1) Precaution during Transportation
The magnetic owmeter is packed tightly. When
it is unpacked, pay attention to prevent damaging
the owmeter. To prevent accidents while it is being
transported to the installing location, transport it to the site
in its original packing.
Installation
3
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