If the particle sizes produced by the Sonolator are too small or the mixing intensity is too great for the product,
control should be achieved only by adjusting the orifice pressure. This can be done either by changing the orifice
size or changing the flow rate. Control should not be attempted by de-tuning the Sonolator, for the results will be
erratic and are usually not reproducible. The Sonolator should always be tuned to produce a maximum of acoustic
intensity at a given pressure.
It will usually be advisable to retune the Sonolator when product temperature or viscosity change, or when orifice
pressure or flow rates are changed or when the solids content of the fluid is changed.
Safety
A suitable pressure relief device located between pump and Sonolator must always be installed and kept in good
operating condition. Adjustable spring-loaded valves are commonly used, but rupture discs may also be used if
proper sanitation is a concern.
If the pressure relief device becomes clogged or otherwise fails, excessive pressure caused by orifice blockage will
usually blow out one of the "O" rings on the sleeve (#5). This is messy, to say the least, and can be hazardous.
It is strongly urged that the operator check the pressure relief device before use and check it frequently during use.
Safety glasses should be worn by the operator and any persons in attendance as a precaution.
If fluids other than water are used, observe proper fire, explosion, and ventilation precaution.
Sound Hazards
Although the "whistle" or high pitched squeal developed by a properly tuned Sonolator seldom exceeds 85 dB 3 feet
from the equipment, some persons may find the sound irritating and uncomfortable, particularly if the Sonolator is
located in a confined space or a small room. In such cases, the operator should wear sound dampening ear plugs
or "ear muffs."
If sound deadening of the equipment is desired, acoustic absorbing enclosures can be designed around the
Sonolator and flexible connections installed to reduce sound transmission in the fluid itself. Consult the factory for
further information.
Instrumentation
FOR COMPLETE INSTRUCTIONS REGARDING OPERATION OF INSTRUMENTATION, REFER TO ACOUSTIC
INTENSITY METER OPERATING INSTRUCTIONS.
Sonolator Systems supplied prior to January 1973 include the Model IN-1000 Acoustic Intensity Meter; those
supplied between 1973 and 1979 include the Model IN-2000 Acoustic Intensity Meter; and current systems from
1979 to the present include the In-3000 meter.
The instrumentation, consisting of an Acoustic Intensity Meter, probe, and transducing connecting cable is explained
in an accompanying instruction booklet. The Acoustic Meter is usually battery operated and should be turned OFF
when not in use. AC powered intensity meters are also available. If cable is disconnected from probe, it is
suggested that the plastic cap provided be inserted atop the probe to protect threads.
Care of the O-rings
The Sonolator is largely fitted with 'O' ring seals. These seals are normally compression fit between two metal
members. After the Sonolator has been operated for long periods of time, the original grease used to assemble the
Sonolator may have been washed out. During disassembly this lack of grease may cause a high degree of friction
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