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ST-50 SERIES ULTRASONIC TRANSDUCER Instruction Manual PL-418 December 1994 33454180...
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Milltronics has been designing and manufacturing process equipment since 1954. Our fields of expertise include ultrasonic level measurement, in-line weighing of dry bulk solids and motion sensing.
ABOUT THE TRANSDUCER transducer The ST-50 series of transducers operates in association with Milltronics ultrasonic level monitoring products. transducer The transducer converts the electrical energy of the face – 3 db transmit pulse from the transceiver into acoustical energy. boundary It then converts the acoustical energy of the echo back into electrical energy for the transceiver receive period.
On liquid applications , the transducer must be mounted so that the axis of transmission is perpendicular to the liquid surface. Avoid aiming into vortexes. On solids applications , the Milltronics Easy Aimer should be used to facilitate aiming of the transducer. Refer to the Easy Aimer instruction manual.
In solids applications, the transducer should be mounted so that it is aimed toward the low level draw point. To facilitate this mounting, it is suggested that the optional Milltronics Easy Aimer Kit be used. Refer to the Easy Aimer instruction manual.
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APPLICATIONS LIQUID APPLICATIONS - STANDPIPES In many applications, access must be made via a standpipe. In such cases, Milltronics can provide flange mounted transducers that will readily mate to the flanged standpipe. Another option is to hang the transducer from a blind flange.
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LIQUID APPLICATIONS - VOLUME "Bad" "Preferred" "Alternate" tank manufacturer’s full level span: corresponds to 5° beam angle tank manufacturer’s empty level rise Empty level for "alternate" location. Below this level, echo would reflect away tank manufacturer’s from the transducer. empty level discharge 1.
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SOLIDS APPLICATIONS - TYPICAL Easy Aimer bin wall seams filling profile emptying profile 3. Transducer too close to material 1. Transducer angled to avoid seams in bin wall and aimed at inlet. Falling material will intersect sound beam and cause erroneous discharge in order to read bin when empty.
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SOLIDS APPLICATIONS - SPECIAL STORAGE BIN WITH AGITATOR infeed agitator 1. Transducer should be kept away from infeed. 2. Where agitators are in use, use the Agitator Discrimination parameter on transceivers where available. 3. Transducer should be aimed away from wall projections. DRYER - WOOD CHIPS infeed drag conveyor...
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