| Help: | The distance between each double bounce echo is constant. Use the Echo Curve Analyzer to determine if double bounce echoes are present. You can calculate the Double Bounce Offset by using the following formula:Double Bounce Offset = Distance to first double bounce - (2 x Distance to surface)You can also enter the offset as the distance from the tank reference point (lower side of the device flange) to the reflection point on the object that is causing the double bounce (typically the tank roof).Note: This value is most often a negative value that is when the tank reference point (lower side of device flange) is above the reflection point (typically tank roof). |