Azbil VDC User Manual

Instrument installation Azbil Corporation
2-4 Model MTG11A/18A, MTG11B/18B, MTG14C
Criteria for installation location (2)
Installed position
Install the instrument at a place where the measured fluid always fills inside the
detector. An example of installation is shown in the figure below to illustrate this
condition.
~Note • The detector must be positioned as shown by the circled areas in the
figure shown above. If the pipe is not filled output errors will occur.
• If the measured fluid is highly viscous, we recommend installing the
instrument on a vertical pipe, in order to secure an axial symmetrical
flow.
• Install a straight pipe section on the upstream side of the detector. For
the straight section length, see the figure below.
Figure 2-2 Straight pipe section upstream of detector (D: Nominal detector bore
diameter)
Figure 2-1 Example of installation
The fluid
may not fill
completely.
The fluid
may not fill
completely.
Prone to air lock
Pump
Good
Good
Diverging pipe section
with a cone angle > 15
(< 15 considered as
straight pipe
section)
90-degree bend
Detector
Detector
Detector
Detector
Detector
Detector
5D or over
5D or over 5D or over
10D or over
10D or over
10D or over
5D or over
Pump of various types
T
Gate valve fully open
Valve of various types
Converging pipe section
(considered as
straight pipe
section)
Upstream
CM2-MTG300-2001.book 4 ページ ２０１５年９月２９日 火曜日 午前１０時１４分

Azbil VDC Specifications

General

Brand	Azbil
Model	VDC
Category	Measuring Instruments
Language	English