Oval TF1015-P11G-11 A Series, Инструкция по эксплуатации

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S-93--E
5.4 Conditions Required for Metered Fluid
Due to the fact that this monitor is a thermal flowmeter, contamination buildup can cause loss of accuracy. In
an environment where entrapment of contaminants, such as dust, oil, and water, is anticipated, it is a good
practice to provide a filter, drain, separator or similar arrangement upstream of the monitor.
5.5 Tubing Guidelines
() Required Tubing Conditions
Since the monitor has a built-in straightener,
tubing conditions, such as differences in tube
diameter, for example, rarely present a problem.
However, if an elbow is to be located upstream
of the monitor, provide a straight tube about the
length of a nipple (3D min.). Direct installation of
an elbow may possibly cause an error of
±
%
F.S. or so.
There is no restriction on tubing arrangements
downstream of the monitor.
() Installation of mounting hardware (option for
meter sizes mm and 0mm).
Required tool: Torque screwdriver that fits M3
cross recess pan head screws.
Do not use any other accessories except for the
furnished dedicated screws (tap-tight screws
3 x ). See outline dimensions in Sec. for
Installation location and orientation.
Torque specification: 0
±
3 cN
・
m
Elbow
Fig. .
30 min.
Monitor body
Straight tube
D: Meter I.D.
CAUTION:
With metal tubes, tubing stresses could damage the flowmeter at its metal
fittings. Do not use the mounting hardware with metal tubes. Instead, secure
the metal tubes with U-bolts or similar fittings.
(3) Tube Connection Procedure (for meter sizes mm and 0mm)
. Connecting parts are of aluminum die casting: avoid forcibly installing them and giving an impact
shock. The monitor body is of synthetic resin: avoid applying stresses on it. Torque specification: 30
±
(N
・
m)
NOTE: Hold the hexagonal flats of aluminum die cast connection firmly with wrench, or similar tool, when
you work (Fig. .9).
. Use care to safeguard the transmitter from coming in contact with tools, such as wrench.
3. Do not hold the transmitter by force while connecting it to the tubing system.
. Providing a union before and after the flowmeter is suggested to facilitate flowmeter removal.
Negligence of the precautions above may result in damaged components.
() Flushing
If foreign solids are expected to get into the tubing system, particularly on a new installation, flushing of
the tubing assembly thoroughly is essential before installing the monitor.
Quick-connect coupling
Meter Fitting
Synthetic resin tube
Mtg. Hardware
Meter fitting
Fig. .9
Screw
WARNING