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Description
3.4 Theory of Operation
FUS1010 IP65 NEMA 4X & IP66 NEMA 7
32
Operating Instructions, 01/2013, A5E02951520-AC
Flow Calibration Factor
Normally, the flow stream is parallel to the axis of the pipe. On this basis, the calibration
factor of a clamp-on ultrasonic flow meter is proportional to the cosine of the beam angle
relative to the pipe axis. However, this reveals that if the angle of flow stream is not in line
with the pipe axis, the flow calibration factor could be compromised. This most often occurs
when the sensor mounting location is within close proximity of a bend or other pipe
obstruction.
①
Upstream Sensor
②
Downstream Sensor
③
Flow Direction
④
Wide Beam transmissions exchanged between the Upstream and Downstream sensors
Reflect mounting automatically corrects for non-axial flow or cross flow since the 2 vectors in
a reflected beam are affected in opposite directions, such that the individual cross flow errors
cancel each other.
Содержание FUS1010
Страница 83: ...Connecting 5 7 Sensor Wiring FUS1010 IP65 NEMA 4X IP66 NEMA 7 82 Operating Instructions 01 2013 A5E02951520 AC ...
Страница 153: ...Functions 7 14 Reflexor FUS1010 IP65 NEMA 4X IP66 NEMA 7 152 Operating Instructions 01 2013 A5E02951520 AC ...
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Страница 277: ...1012TN 7 INSTALLATION DRAWING 1010 SERIES TRANSDUCERS AND MOUNTING TRACKS 21614 C ...
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Страница 279: ...1012TNH 7 INSTALLATION DRAWING 1010 SERIES TRANSDUCERS AND MOUNTING TRACKS 21614 C ...
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Страница 293: ...Glossary FUS1010 IP65 NEMA 4X IP66 NEMA 7 228 Operating Instructions 01 2013 A5E02951520 AC ...
Страница 297: ...Index FUS1010 IP65 NEMA 4X IP66 NEMA 7 232 Operating Instructions 01 2013 A5E02951520 AC ...