APG DCR-1006A user manual - Manual (Page 7)

Rev. A1, 2/14 DCR-1006A Ultrasonic Controller
7
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• Always mount above the highest anticipated target level by at least the
published minimum blanking distance. If a target enters into the blanking
area, error in the detection will occur. It is always advisable to allow for
sufficient headroom to ensure that the target does not enter the blanking
area.
• Generally it is advisable to mount the sensor away from any vessel fill
spouts. However, if heavy foam is expected, it is often helpful to mount the
Sensor near a fill spout where the foam is being dispersed.
• Avoid mounting the sensor in the direct center of a tank with a significantly
domed top. A domed top can act as parabolic dish, amplifying small
undesired signals that may be present inside the tank.
• Avoid mounting the sensor in close proximity to tank walls, especially on
tanks with corrugated walls or in applications where product buildup on
the tank walls may occur.
Low Sensitivity Detection Area High Sensitivity Detection Area