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Vapor/Foam Density Compensation
Ronan uses a simple technique to correct the level output when the gas or vapor density chang-
es. The technique is made by monitoring the changes of the signal from the compensation
detector and applying a correction value to the continuous level measurement.
='%V%`%!/'$&!'?'%"'!B'%&!''-
tor is collected at the same time the continuous level detector is collected during the Low Level
Calibration. The X96SI then compares the current counts from the compensation detector with
the counts collected during the low level calibration. The X96SI then applies any necessary cor-
rection to the level measurement.
For the Low Phase Density Compensation, the counts or signal from the compensation detec-
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Calibration. The X96SI then compares the current counts from the compensation detector with
the counts collected during the high level calibration. The X96SI then applies any necessary
correction to the level measurement.
Shown below is a tank/vessel with an upper phase of foam or high-density gas/vapor. In this
case, a change in detector counts may actually be a result of a change in the density of the up-
per phase of foam/vapor rather than a change in the process level.
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Summary of Contents for X96SI/R
Page 2: ...2 Revisions 11 11 18 8 14 20 ...
Page 4: ...Chapter 1 Introduction 4 ...
Page 17: ...17 ...
Page 18: ...Chapter 2 Quick Start 18 ...
Page 24: ...24 ...
Page 25: ...Chapter 3 Installing the Level with Density Compensation Gauge 25 ...
Page 34: ...34 ...
Page 35: ...Chapter 4 Density Compensation Gauge 35 ...
Page 71: ... 71 ...
Page 72: ... Cont d 72 ...
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Page 81: ...8 0 Display Menu The Display menu includes the following options 81 ...
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Page 89: ...Chapter 5 Troubleshooting the Level with Density Compensation Gauge 89 ...
Page 101: ...Calibrate Density Dens Cal Const The Dens Cal Const menu includes the following items 101 ...
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Page 121: ...6 0 File System Menu The File System menu includes the following items 121 ...
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Page 125: ...5 J Y 125 ...
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Page 129: ...8 0 Display Menu The Display menu includes the following options 129 ...
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