MICROSONIC® Thru-beam Sensors Model SM100 Series 0 pages
Model SM100 Series
nnnnMICROSONIC®
nnnnThru-beam
nnnnSensors
nnnnIndustry proven, these
nnnnMICROSONIC® sensors
nnnnincrease "uptime" with
nnnnreliable, thru-beam
nnnnsensing in harsh, high-
nnnnspeed environments
nnnnIn response to problems di-
nnnnrectly attributed to the harsh en-
nnnnvironments in which sensors
nnnnoperate today, Hyde Park offers
nnnnbroad application solutions with
nnnnthis industry-proven line of ultra-
nnnnsonic thru-beam sensors. First
nnnnproduced in 1974, the
nnnnMICROSONIC® SM100 series
nnnnsensors are a "workhorse" in the
nnnnHyde Park product line with tens
nnnnof thousands of units continu-
nnnning to perform a variety of thru-
nnnnbeam sensing functions
nnnnthroughout the world.
nnnnUsing the world's leading ultra-
nnnnsonic sensing technology, the
nnnnMICROSONIC® SM100 series
nnnnsensors perform precise object
nnnndetection. Of objects from trans-
nnnnparent containers to metal parts
nnnnas small as 6.4 mm (1/4") di-
nnnnameter at speeds in excess of
nnnn2,000 units per minute.
nnnnUnlike photoelectrics, these
nnnnstainless steel sensors are vir-
nnnntually unaffected by splashing
nnnnfood, caustic cleaning solutions,
nnnnfrequent high-pressure wash-
nnnndowns, humidity, changing light
nnnnconditions or colors, dust, and
nnnnambient noise. The rugged sen-
nnnnsors need no maintenance and
nnnnrequire no sensitivity adjust-
nnnnments to compensate for incon-
nnnnsistent product materials.
nnnnResponse times range from 4
nnnnms down to 0.6 ms. The 12 to
nnnn24 VDC circuitry and output sig-
nnnnnal make these sensors directly
nnnncompatible with many program-
nnnnmable logic controllers, comput-
nnnners, and other logic control sys-
nnnntems.
nnnnOperation
nnnnThe MICROSONIC® sensors
nnnnare continuous-wave devices
nnnnthat consist of an ultra-high-fre-
nnnnquency transmitter and receiver
nnnnpositioned opposite each other,
nnnnillustrated below, at a distance
nnnnof up to 1,829 mm (72"). During
nnnnoperation, the transmitter sends
nnnna continuous ultrasonic beam
nnnnwhich is picked up by the re-
nnnnceiver. When an object of any
nnnnmaterial or shape passes be-
nnnntween the transmitter and re-
nnnnceiver and breaks the beam,
nnnnobject presence is detected and
nnnnthe output of the receiver
nnnnswitches. Or, when a hole as
nnnnsmall as 3 mm (1/8 inch) diam-
nnnneter allows the beam to pass
nnnnthrough to the receiver, the out-
nnnn• Self contained
nnnn• Meets NEMA4X (in-
nnnndoor use only) & IP67
nnnnstandards
nnnn• Survives harsh
nnnnenvironments
nnnn• No sensitivity
nnnnadjustments
nnnn• Sensing ranges up to
nnnn1,829 mm (72")
nnnnput of the receiver switches.
nnnnWith all circuitry compactly
nnnnsealed in the stainless steel
nnnntransmitter and receiver probes,
nnnnthe MICROSONIC® sensors
nnnnboast a narrow, constanthigh-
nnnnfrequency sonic beam for high
nnnnsensing resolution.
nnnnThe thru-beam sensing mode
nnnnis set up by mounting the sen-
nnnnsors on the same axis opposite
nnnneach other as shown in Figure
nnnn1 .The distance (range) between
nnnnthe transmitter face and receiver
nnnnface can be up to 1,829 mm
nnnn(72"), depending on the model
nnnnand range selected.
nnnnPositioning of the transmitter
nnnnand receiver for operation is ex-
nnnntremely important for the reli-
nnnnable detection of objects, par-
nnnnticularly small ones. As the fig-
nnnnure also shows, the width of the
nnnntransmitted sound beam initially
nnnnexpands at a rate of 10 degrees
nnnn(5 degrees each side of the com-
nnnnmon axis) as the distance be-
nnnntween the transmitter and re-
nnnnceiver increases. This means
nnnnthat if the distance between the
nnnntransmitter and receiver is too
nnnn5-3
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