940-111E-001 MAGNETROL | Alldatasheet

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Echotel ® Mo del94 0/9 4 1 UltrasonicLevelSwitch High alarm High alarm Low alarm Filling line Pump protection Low alarm Pump TypicalM ountingOrientations D E S C R I P T I O N EchotelModel 940 and 941 Ultrasonic LevelSwitches arecom pactintegralunitsthatutilizepulsedsignal technology toperform highor low levelmeasurement ina wide variety ofliquid applications.These switches featurea 316 stainless steeltip-sensitivetransducerthat isoffered in a varietyof NP T,flanged,and sanitary processconnections.The comp actelectronicsare completelyencapsulated justabove the processfitting. The M odel940 offers a 1-amp SPDT relayoutput.The Mo del 941 has a mA currentshiftoutput. F E A T U R E S

  • Pulsed electronicsfor excellentperform ance in diffi - cultprocessconditionsand superiorimmu nityfrom sources of electromagneticnoise
  • Tip-sensitivetransducergap providesreliable opera - tion by drainingviscousliquids and shedding foam inturbulentapplications
  • Safety IntegrityLevel(SIL) data (FMEDA analysis)is available.Model 940 issuitable for SIL 2 loops. Mod el941 issuitable forSIL 1 loops.
  • Extremelycompact unitiseasilyinstalledinareas where access space islimited
  • 1 amp SPDT relayoutput(940),or mA currentshift(941) output
  • No calibrationor configuration necessary A P P L I C A T I O N S The M odel940/941 can be appliedina wide varietyof highorlow liquid levelapplications,pump protection, and filllinemonitoringasshown inthediagram atthe left.These compact unitscan alsobe installed inthe interstitialspace between two tankwallsforfluidleak detection. Smallsize and simplicityofinstallationmake theseunits idealforOEM skidsasa low cost,yethighperformance levelme asurement solution.They arealsotheperfect replacement forolderfloats,conductivityswitches,and tuningforks. Model 940/941 with3 ⁄4"NPT Model 940/941 withTri-Clamp ® fitting Model 940/941 withANSI flange

Ultrasonicsignaltransmission across transducergap T E C H N O L O G Y Ultrasonicenergy detectsthepresence orabsence of liquidin a tipsensitive transducer gap.The principlebehind contactultra - sonictechnology isthathigh frequency sound waves areeasily transmittedacrossa transducer gap inthe presenceof liquid,but areattenuated w hen thegap isdry. The transduceruses a pairof piezoelectriccrystalsthatare encapsulatedinepoxy atthetipof the transducer.The crystals arema de of a ceramicmaterialthatvibrates ata givenfrequency wh en subjected toan appliedvoltage.The transm itcrystalcon - vertsthe appliedvoltage from the electronicsinto an ultrasonic signal.When liquidis presentin the gap,the receivecrystalis ableto sensethe ultrasonicsignalfrom the transm itcrystaland convertitback to an electricalsignal.Thissignalissenttothe electronics to indicatethepresence of liquid inthe transducer gap.When there isno liquidpresent,the ultrasonicsignalis attenuatedand isnot detected by the receivecrystal. S P E C I F I C A T I O N S Electrical: Po w erSupply: 12–35 VDC Po w erConsu mpt ion: Less than 1 Wa tt SignalO utput: Mod el940: SPDT relay,1 amp @ 30 VDC ,0.5 amp @ 125 VDC, 0 .5 amp @ 150 VAC Mod el941: DryGap : 8 m A (±1 m A),We tGa p: 16mA (±1mA) Cabling: 18"(457 mm) flying leads of18 AWG wires Re peatability: 0.07 8"(2millimeters) Re sponse Time: 1⁄2 second typical Environmental: Am bientTempe rature: -40° to+185° F (-40 ° to+85° C) Process Tem perature: -40° to+185° F (-40°to+85° C) Max imum Pressure: 20 00 psig(138 bar)for1"(3 cm)and 2"(5 cm)transducers 15 00 psig (103 bar)fortransducerslongerthan2"(5 cm) Sho ck ANSI/ISA-S71.03 C lassSA1 Vibration ANSI/ISA-S71.03 C lassVC2 These units have been tested to EN 50081-2□ and EN 50082-2 and are in compliance with□ the EMC Directive 89/336/EEC. A G E N C Y A P P R O V A L S AG EN CY APP RO VED MODELS PROTECTI ON METHO D AREA CLASSIFICAT ION FM & CSA 94X-XXXX- XXX Non -Incendive ClassI,Div.2,GroupsA,B,C, & D C lass II,Div.2,Groups E,F ,& G C lass III,Type 4X,IP66,T4 941-XXXX-XXX IntrinsicallySafe Class I,Div.1,GroupsA,B,C, & D C lass II,Div.1,Groups E,F ,& G C lass III,Type 4X,IP66,T4

Mod el94 0/941 withTri-Clamp fitting Mod el940 /941 with 3⁄4 "NP T Mod el940 /941 withANS Iflange Actuation length for Tri-Clamp fitting 3.9 (99) 3/4" NPT 3/4" NPT 3/4" NPT Actuation length for NPT process connection 4.13 (105) Actuation length for ANSI flange 3.9 (99) M O D E L N U M B E R S P E C I F I C A T I O N S I n c h e s ( m m )

940 Low costcompac tultrasoniclevelswitchwith SPDT relayoutput

941 Low costcompac tultrasoniclevelswitchwith currentshiftoutput

1 to100 inches (Example: 4 inches = 004) 3 to250 centimeters(Example:6 cm = 006) Ava ilableESP length = 1" (001)

1 FM /CSA In trinsicallySafe& Non-Incendive (Model 941 only)

7 FM /CSA N on-Incendive(Model 940 only)

E English(inches) M M etric(centimeters) B AS IC M ODEL NU MBE R AGE NC Y A PPROV A L PROC ESSCONNE CTI ONS AC TU AT ION UNI TS ACT UAT IO N LENGT H M od elsavailablefor quickshipme nt,usuallywithinone week afterfactory receiptofa purchase order,through the Exped iteShip Plan (ESP) Note: OptionalNEMA 4 castaluminum junction box assembly 052-7012-XXXisavailable from thefactory. *Minimum actuationlengthof2 inchesor5 centimeters 11 3⁄4 " NP T 22 1" B SP (G1)* 23 1" 150#A NS I RF flange* 33 1.5"150#A NSI RF flange* 43 2"150#A NS I RF flange* 3T 1"/1.5"Tri-Clamp 16 AMP fitting* 4T 2"Tri-Clam p 16 A MP fitting*

AllMa gnetrolelectronic leveland flowcontrols are w arranted free of defectsin m aterialsor wo rkm anship for one fullyear from the date oforiginalfactoryshipmen t. Ifreturned w ithin the w arrantyperiod;and,upon factory inspection ofthe control,the causeofthe claim isdetermined to be covered underthewar - ranty;then,M agnetrolw illrepairor replace the controlatno costto the purchaser (orow ner) otherthan transportation. Mag netrolshallnotbe liableform isapplication, labor claims,director consequentialdam age orexpense arising from the installation oruseof equipm ent. There are no other warranties expressed or implied,except specialw ritten warrantiescoveringsome M agnetrolproducts. BULLETIN: 51-136.2 EFFECTIVE:September 2009 SU PERSEDE S:August 2006 5300 Belmont Road • Downers Grove, Illinois 60515-44 99 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com

145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306

Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93 Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317 Copyright © 2009 Magnetrol International, Incorporat ed. All rights reserved. Printed in the USA. Performance specifica tions are effective with date of issue and are subject to change without notice. W A R R A N T Y The quality assurance system in place at M agnetrol guarantees the highest levelof quality throughout the comp any.Ma gnetrol is com m itted to providing full customer satisfaction both in quality products and quality service. M agnetrol’squalityassurance system isregis - tered to ISO 9001 affirm ing itscom m itm ent to know n international quality standards providing the strongest assurance of prod - uct/service quality available. Several Echotel sw itches are availablefor quick shipm ent,usually w ithin one week after factory receipt of a purchase order, through the ExpediteShip Plan (ESP). M odels covered by ESP service are color coded inthe selection datacharts. To take advantage of ESP,simply ma tch the color coded mo del number codes (standard dimen sions apply). ESP servicem ay not app ly to orders of ten units orm ore.Contactyourlocalrepresenta - tiveforlead times on larger volum e orders, as w ellas otherproductsand options. EExpedite SShip PPlan Q U A L I T Y E S P Mag netrol & Magnetrol logotype and Echotel® are registered trademarks of Magnetrol International.