Azbil MCB10A, User Manual

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Instrument installation Azbil Corporation
2-4 Model MCB10A
2-1-2 : Criteria (2) for selecting an installation location
Installed position
• Install the instrument at a place where the measured fluid always fills inside the
sensor. An example of installation is shown in the figure below to illustrate this
condition.
Pump
Air may be entrapped
The fluid may
not fill completely
The fluid may
not fill completely
Good
Good
Figure 2-1 Example of installation
~Note • Install the instrument under the conditions circled in the figure
above with the detector full of fluid. If the sensor is not filled in full,
output errors may result. If empty, output fluctuations may result.
• If the measured fluid is highly viscous, we recommend installing
the instrument on a vertical pipe and flowing the fluid to ensure an
axially symmetrical flow.
• Lay on a straight pipe section upstream and downstream of the
installation location. For the straight section length, see the figure
below.
Upstream
90 bend
Tee
Gate valve
fully open
5D or over
10D or over
5D or over
10D or over
10D or over
5D or over
5D or over
Diverging pipe section
with a cone angle of
15 or over
(Less than 15
can be deemed
to be a straight section)
Detector
Detector
Detector
Valve of
various types
Converging
pipe section
(can be
deemed
to be a
straight
section)
Pump of
various types
P
Detector
Detector
Detector
Figure 2-2 Straight pipe section upstream of detector
(D: Nominal detector bore diameter)