Chapter 3 Installation
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2 The electromagnetic flowmeter shall avoid the sunshine and rain. When it
is installed outdoors, it shall be equipped with facilities against sunshine and
rain. The ambient temperature ranges from -20°C to +60°C.
3 The electromagnetic flowmeter shall not be installed in places with large
temperature variation and avoid high temperature radiation from the
equipment. If it must be installed therein, heat insulation and ventilation
measures shall be taken.
4 The electromagnetic flowmeter shall avoid installing in an environment
containing corrosive gases. If it must be installed therein, ventilation and
anti-corrosion measures shall be taken.
5 The electromagnetic flowmeter shall be installed avoiding strong vibration
as possible, such as violent pipe vibration. In this case, brackets for fixing
pipes on both sides of electromagnetic flowmeter shall be provided.
6 Part of the sensor of electromagnetic flowmeters with IP68 (3 m under
water) protection level can be placed into the water. While the
electromagnetic flowmeter with IP65 protection level cannot be immersed
into the water or installed outdoors.
(2) Avoid interference of magnetic field
Do not install electromagnetic flowmeters near motors, transformers, or other
power sources which are prone to cause electromagnetic interference, near the
frequency converter or obtain power from the power distribution cabinet of the
frequency converter to avoid interference.
(3) The distance of the straight pipe
In order to ensure the measurement accuracy of flowmeter, it is recommended
to ensure that the length of the straight pipe on the upstream of the sensor shall
be at least 10 times of pipe diameters (10D), and the length of straight pipe on
the downstream be at least 5 times of pipe diameters (5D)
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