Measuring the thickness of the floating sludge blanket is simple.
As the probe is lowered into the tank and the solid/liquid interface
is engaged, the meter lightbar LED sements begin to illuminate and the
horn tone sounds and changes as the solids density increases.
To
measure the thickness of the floating sludge blanket, push the sensor
probe into the sludge and notice the illumination of the red LED's as
the gap in the probe is fully blocked with sludge. Keep pushing lower
until the LED's begin to go out. Check to see how deep the sensor is by
looking at the markers on the Pushrod. It's that easy.
Point
of Interest - at the sludge blanket interface with the fluid below, try
increasing sensitivity to determine how much of a ragged edge there is
below the most dense part of the blanket. At low sensitivity the LED's
will go from all to none very quickly over a short lowering distance
below the blanket. At high sensitivity you might find that there is
quite a bit of travel below the most dense part of the interface before
all the LED's go out.
DAF Sludge Interface Detector for measuring floating sludge blankets in dissolved air floatation tanks .
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