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f. The flow meter must be free from strong electromagnetic field. The magnetic
intensity
of the flow meter installation site must be smaller than 400A/m.
(It should not be installed near large motors or transformers)
g. There should be enough space left surrounding the flow meter for installation and
repair.
h. If the measuring pipe vibrates, a support frame should be set up on both sides of
the flow meter.
i. When measuring the mixture of different media, the distance between the mixing
point and the flow meter must be 30×D at least (D is the internal diameter of the
flow meter)).
j. For convenient cleaning and maintenance of the flow meter, a bypass pipe must be
installed.
k. When installing the flow meter of the PTFE lining, the bolt connecting two flanges
should be fastened evenly. Otherwise, it will damage the PTFE lining. Please use
the torque wrench as much as possible.
l. The flow meter should be protected from strong vibration and great temperature
change. In the meantime, damage of the corrosive liquid on the flow meter should
be prevented.
m. If the flow meter is installed at a position with direct sunlight, shielding facilities
should be set up.
n. When installing the sensor, the measuring pipe and the process pipe must be on
the same axial line. For the senor with the nominal diameter of DN50 or below, the
axial line deviation should not exceed 2mm. For those of DN65 DN150, the axial
line deviation should not exceed 3mm. For those of ≥DN200, the axial line deviation
should not exceed 4mm.
o. The shim installed between the flanges should have excellent anti-corrosion
property. The shim should not intrude in the pipe, which will block the flowing fluidic
p. Fasten the bolts and screws of the flow meter. The screw threads should be
undamaged with good lubrication condition. The bolts with torque wrench must be
fastened based on the flange size and torque.
q. When welding or flame-cutting the pipes near the sensor, isolation measure must
be conducted, so as to prevent the lining from heating. Moreover, the flow meter
must be powered off, or it will damage the flow meter.
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