Installation; Precautions Regarding Installation Locations; Piping - YOKOGAWA DY025 User Manual

2. INSTALLATION

WARNING
This instrument must be installed by expert engineer
or skilled personnel. The procedures described in this
chapter are not permitted for operators.
2.1 Precautions Regarding In-
stallation Locations
(1) Ambient Temperature
Avoid an area which has wide temperature variations.
When the installation area is subjected to heat radiation
from process plant, ensure adequate heat prevention or
ventilation.
(2) Atmospheric Conditions
Avoid installing the vortex flowmeter in a corrosive
atmosphere. When the vortex flowmeter must be
installed in a corrosive atmosphere, adequate ventilation
must be provided
(3) Mechanical Shock or Vibration
The vortex flowmeter is of sturdy construction, but
select an area subject to minimize mechanical vibration
or impact shock. If the flowmeter is subject to vibra-
tions, it is recommended that pipeline supports to be
provided as shown in Figure 2.1.
Pipeline Support
Figure 2.1
digitalYEWFLO
Vortex Flowmeter
Pipeline
F020101.EPS
2-1
(4) Precautions Regarding Piping
(a) Ensure that the process connector bolts are tightened
firmly.
(b) Ensure that no leak exists in the process connection
pipeline.
(c) Do not apply a pressure higher than the specified
maximum working pressure.
(d) Do not loosen or tighten the flange mounting bolts when
the assembly is pressurized.
(e) Handle the vortex flowmeter carefully when measuring
dangerous liquids, so that the liquids do not splash into
eyes or on face. When using dangerous gases, be careful
not to inhale them.

2.2 Piping

See Table 2.1 about Valve Position and Straight Pipe Length
and so on.
2. INSTALLATION
IM 01F06A00-01E