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300-R010-45L bảng dữ liệu(PDF) 2 Page - Magnetrol International, Inc.

tên linh kiện 300-R010-45L
Giải thích chi tiết về linh kiện  Echotel짰 Model 300/301 Ultrasonic Non-Contact Transmitter For Level, Volume, and Open Channel Flow
PDF  12 Pages
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nhà sản xuất  MAGNETROL [Magnetrol International, Inc.]
Trang chủ  http://www.magnetrol.com
Logo MAGNETROL - Magnetrol International, Inc.

300-R010-45L bảng dữ liệu(HTML) 2 Page - Magnetrol International, Inc.

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The Model 300/301 is a versatile system that utilizes non-
contact ultrasonic technology to measure liquid levels in
a variety of applications. The system consists of a trans-
mitter and an ultrasonic transducer. The transducer con-
tains a piezoelectric crystal that has the ability to convert
electrical signals generated by the transmitter into ultra-
sonic pulses.
The unit operates by directing ultrasonic pulses, or
sound waves, through the air toward the liquid surface.
They are then reflected off the liquid surface as an echo,
and returned to the transducer. The piezoelectric crystal
then converts the returned echo into an electrical signal
which is analyzed by the transmitter. The elapsed time
between the generation of the ultrasonic pulse and the
return echo is proportional to the distance between the
face of the transducer and the liquid surface.
TECHNOLOGY
2
TYPICAL
MOUNTING
CONFIGURATIONS
The transducer is installed above the liquid surface. A
minimum dead zone distance of 18" (457 mm) must be
allowed between the face of the transducer and the maxi-
mum attainable level. Figure 1 shows a typical open
channel flow installation with the transducer mounted on
a bracket. Figure 2 shows how the unit can be mounted
in a coupling or flange for level or volume applications.
Model 300
Flow
Parshall
Flume
Model 300
Air
Liquid
Dead zone
18" minimum
(457 mm)
Flange
Maximum span
28.5' (8.7 m)
Figure 1
Typical Mounting – Open Channel Flow
Figure 2
Typical Mounting — Level/Volume



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