Milltronics ST-50 Series Instruction Manual
Milltronics ST-50 Series Instruction Manual

Milltronics ST-50 Series Instruction Manual

Ultrasonic transducer

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ST-50 SERIES
ULTRASONIC TRANSDUCER
Instruction Manual
PL-418
December 1994
33454180
Rev
1.2

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Summary of Contents for Milltronics ST-50 Series

  • Page 1 ST-50 SERIES ULTRASONIC TRANSDUCER Instruction Manual PL-418 December 1994 33454180...
  • Page 2 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.
  • Page 3: About The Transducer

    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.
  • Page 4: Do's And Don'ts

    OUTLINE AND CONNECTION Cable length: » standard: 5 m (16 ft) » optional: consult Milltronics Milltronics transceiver junction box black cable white PVC jacket RG62 A/U 1" NPT coaxial cable shield black white 125 mm (4.9") shield direct connection CPVC housing...
  • Page 5: Mounting - Liquid Applications

    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.
  • Page 6: Mounting - Solids Applications

    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.
  • Page 7 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.
  • Page 8 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.
  • Page 9 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.
  • Page 10 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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