APG MNU Slave Sensor user manual - Manual (Page 7)

Rev. B1, 5/13 MNU Series Ultrasonic Sensors
7
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• Always mount above the highest an! cipated target level by at least the
published minimum blanking distance. If a target enters into the blanking
area, error in the detec! on will occur. It is always advisable to allow for
suffi
cient headroom to ensure that the target does not enter the blanking
area.
• Generally it is advisable to mount the sensor away from any vessel fi ll
spouts. However, if heavy foam is expected, it is o$ en helpful to mount the
Sensor near a fi ll spout where the foam is being dispersed.
• Avoid moun! ng the sensor in the direct center of a tank with a signifi cantly
domed top. A domed top can act as parabolic dish, amplifying small
undesired signals that may be present inside the tank.
• Avoid moun! ng the sensor in close proximity to tank walls, especially on
tanks with corrugated walls or in applica! ons where product buildup on
the tank walls may occur.
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