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Saab TankRadar Rex

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Technical Description<br />

44<br />

Miscellaneous Approvals<br />

CE Mark, European Community<br />

TÜV Overfilling Protection, Germany<br />

TÜV Pressure Approval, Germany<br />

TÜV Firesafe Approval, Germany<br />

In addition to the list above, there are a number of<br />

certificates or approvals for optional equipment<br />

which can be delivered by <strong>Saab</strong> Rosemount Tank<br />

Control. Junction boxes, pressure transducers,<br />

water interface sensors, etc. have approvals in the<br />

name of their manufacturers. Copies of these can be<br />

requested from <strong>Saab</strong> Rosemount Tank Control.<br />

Vapor Influence on Radar Measurement<br />

For a few specific products there can be a<br />

measurable influence on the level accuracy, if the<br />

composition of the vapor varies between no vapor<br />

and fully saturated vapor condition. However,<br />

there is no noticeable influence, if the vapor<br />

variation is small.<br />

For these specific products it is in many cases<br />

sufficient that the pressure and temperature is<br />

measured. The software in the Radar Tank Gauge<br />

then automatically corrects for the influence from<br />

the vapor. This is for example performed when<br />

measuring in LPG tanks.<br />

Gases that are known to affect the transmission of<br />

radar waves are:<br />

Propylene oxide<br />

Etylether<br />

Propylether<br />

Acetaldehyde<br />

Propionaldehyde<br />

Isobutyraldehyde<br />

Acetone<br />

2-Butanone<br />

Methanol<br />

One gas that dampens (or attenuates) the radar<br />

signal is ammonia. In applications where ammonia<br />

is involved, <strong>Saab</strong> Rosemount Tank Control should<br />

always be contacted for evaluation of the application.

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