Chapter 3 Installation
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Figure 16
(8) Measurement error caused by incidental gas and damage of lining
caused by vacuum shall be avoided
(9) No bubbles shall be observed in the pipes.
Pipes shall be designed to prevent the air bubbles in the fluids from accumulating
the measurement pipe of a sensor. If a valve exists near the flowmeter, try to mount
the flowmeter on the valve’s upstream side for preventing a decrease of pressure
inside the pipe possibly, consequently avoiding the possibility of air bubbles.
ensure that no gas can be separated from the liquid.
Figure 17
(10) Liquid conductivity
It’s not allowed to install the electromagnetic flowmeter at a place where the liquid
conductivity is extremely uneven. Injection of chemicals from the upstream of the
meter can easily result in uneven liquid conductivity, which can cause serious
Without Bubbles Without Bubbles
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