
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.
Summary of Contents for FUS1010
Page 224: ......
Page 225: ......
Page 226: ......
Page 227: ......
Page 228: ......
Page 229: ......
Page 230: ......
Page 231: ......
Page 232: ......
Page 233: ......
Page 234: ......
Page 235: ......
Page 236: ......
Page 237: ......
Page 238: ......
Page 239: ......
Page 240: ......
Page 241: ......
Page 242: ......
Page 243: ......
Page 244: ......
Page 245: ......
Page 246: ......
Page 247: ......
Page 248: ......
Page 249: ......
Page 250: ......
Page 251: ......
Page 252: ......
Page 253: ......
Page 254: ......
Page 255: ......
Page 256: ......
Page 257: ......
Page 258: ......
Page 259: ......
Page 260: ......
Page 261: ......
Page 262: ......
Page 263: ......
Page 264: ......
Page 265: ...21614 C 1011NFPS 7 ...
Page 266: ...1011NFPS 7 C 21614 ...
Page 267: ...1011NFPS 7 C 21614 ...
Page 268: ...21614 C 1011NFPS 7 ...
Page 269: ......
Page 270: ......
Page 271: ......
Page 272: ......
Page 273: ......
Page 274: ...21614 C ...
Page 275: ......
Page 276: ......
Page 277: ...1012TN 7 INSTALLATION DRAWING 1010 SERIES TRANSDUCERS AND MOUNTING TRACKS 21614 C ...
Page 278: ...1012TN 7 INSTALLATION DRAWING 1010 SERIES TRANSDUCERS AND MOUNTING TRACKS 21614 C ...
Page 279: ...1012TNH 7 INSTALLATION DRAWING 1010 SERIES TRANSDUCERS AND MOUNTING TRACKS 21614 C ...
Page 280: ...1012TNH 7 INSTALLATION DRAWING 1010 SERIES TRANSDUCERS AND MOUNTING TRACKS 21614 C ...
Page 281: ......
Page 282: ......
Page 283: ......
Page 284: ......
Page 285: ......
Page 293: ...Glossary FUS1010 IP65 NEMA 4X IP66 NEMA 7 228 Operating Instructions 01 2013 A5E02951520 AC ...
Page 297: ...Index FUS1010 IP65 NEMA 4X IP66 NEMA 7 232 Operating Instructions 01 2013 A5E02951520 AC ...