Use - ABB AquaProbe FEA100 User Manual

AquaProbe FEA100 / FEA200
Electromagnetic flowmeter – insertion-type flow sensors

3.2 Use

An insertion probe is inserted into a flow-line through a small tapping and a valve fitted to the line. The
tapping can be as small as one inch BSP or larger. Such a tapping is common on pipelines and, if one does
not exist where it is required to make the installation, it is very inexpensive to fit one, online and under
pressure, and there are many specialist companies that do this type of work.
Warning. It is important to note that putting any type of device into a pressurized vessel (the pipe) can
be dangerous. If the pressure in the line is high (typically 5 bar or more), care must be used in both
installing and removing the probe. If the pressure is greater than 10 bar, installation (or removal) of a
probe is not recommended. Instead the pressure should be removed from the line for the short period of
time it takes to install or remove the probe, when the pressure can then be re-applied. In many
instances, the removal of a probe from a line is more dangerous than the installation. For this reason,
AquaProbe is supplied complete with a safety device that prevents rapid outward movement and
potential injury to operators. It must be stressed that this is a problem with all probe devices, not just
AquaProbe.
OI/FEA100/200–EN Rev. D
3 Mechanical Installation
9