please check the plastic hoses for any damages or holes that can prevent proper fun-
ction. The plastic hoses should not be used in temperatures over 90ºC/16 bar (194
ºF/232 PSI). If your application temperature exceeds this temperature/pressure, we
recommend to use copper or stainless steel tubing, depending on the compatibility
to the measured gas or liquid (see section 2.4)
Note: Remote/separate execution is not available on our Ex versions.
2.3 Installation of the Pipe Section
Note!!! Before starting to install the Pipe Section, please make sure that the piping
is not under pressure from flow of liquid/gas!
The pipe section can be installed in any desired direction, vertically or horizontally
and the direction arrow on the pipe section denote the direction of the flow. It is very
important that the pipe section is mounted with the correct direction, as the function
of the Flow Monitor otherwise will be prevented. The piping shall be rigid and free
from vibrations and hoses connected directly into the Monitors should be avoided
as much as possible. If you have weak piping we advise you to use the M6 moun-
ting hole (only on GL-series) on the backside of the pipe section, to fasten the pipe
section to a wall or a rigid bracket. The straight runs before and after the Monitor
should not be to short, in order to avoid disturbances, which can cause the Monitor
to show incorrect values. We recommend giving at least 10-15 diameters upstream
and 5 diameters downstream.
(Please see Fig. 1)
The reasons for this procedure is to achieve a stable flow profile inside the pipe
and by doing so, get a true reading. Please be aware of the fact that it is practically
impossible to predict when the flow is stable after disturbances in the piping, so this
must serve as a guideline only.
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