The increasing trend to install floating roof tanks has created the potential need for non-contact level measurement. On existing internal or external floating roof tanks that do not have a dedicated stilling well for mounting a level gauge; the typical level gauging device is a Float/Tape Gauge with a float installed in a float pan on the internal floating roof.
Sometimes the maintenance cost associated with the float/tape gauge generates an interest in a form of non-contact level measurement such as L&J’s MCG 1600SFI Radar Level Gauge. Without taking the existing tank out of service to install a dedicated stilling well, which is quite costly, the only alternative is to mount a radar gauge on an available nozzle a required distance from the tank side wall and try to focus the microwave beam to reflect off of the top of the internal floating roof. This method often leads to accuracy issues based upon the non-linear movement of the roof and structures that may be welded to the roof.
Radar Measurement for Internal & External Floating Roof Tanks Made Easy
L&J Technologies has developed an alternative method to utilize Radar Measurement for internal & external floating roof tanks. If the existing tank has an existing “Gauge Pole” or Hand Gauge Well, the cross sectional drawing indicates our solution of installing a new stilling well within the existing Gauge Pole Well.
This method will also allow the insertion of an Average Temperature Probe to allow for accurate temperature readings throughout the entire product travel in the tanks and also allows for a Hand Gauge Port to provide for manual level checks.
If redundant level is being considered (and the existing float/tape gauge is still utilized), installing the 1600 SFI Radar Gauge/Stilling Well will fully comply to API 2350 Overfill Protection* regulations.
Application features the MCG 1600SFI Smart Flash Infrared Radar Gauge Conar Antenna.
The Conar antenna for the MCG 1600SFI Smart Flash Infrared Radar Gauge is designed for applications in which stilling wells are required to provide for a more accurate level reading. The conar antenna works exceptionally well for petroleum based products.
*For more information regarding API 2350 Overfill Protection, please free to Contact Us.