940-111E-004

940-111E-004 MAGNETROL | Alldatasheet

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Echotel ® Model 940/941 Model 940/941 with3□4" NPT Model 940/941 withhygienic fitting Model 940/941 withANSI flange Installation and OperatingMan ual

51-647 EchotelModel 940 & 941 UltrasonicLevelSwitches ReadthisMan ualBefore Installing Thism anualprovidesinformationon the Echotel M odels940 and 941 UltrasonicLiquidLevelSwitch.It isimportantthatallinstructionsareread carefullyand followed in sequence.Detailedinstructionsareincluded inthe Installationsectionofthism anual. Co nventionsUsed in thisMan ual Certainconventions areusedinthism anualtoconvey specifictypesofinformation.Gen eraltechnicalmaterial, supportdata,and safetyinformationarepresentedin narrativeform.Th e followingstylesareusedfornotes, cautions,and warnings. Notes Notescontain information thataugm entsorclarifies an operatingstep.N otesdo notnormallycontain actions.T hey follow the proceduralstepstowhich they refer. C autions Cautions alertthetechnicianto specialconditions thatcouldinjurepersonnel,dam age equipment,or reducea com ponent’sm echanicalintegrity.C autions are alsoused toalertthe technicianto unsafeprac - ticesortheneed forspecialprotective equipmentor specific materials.In thism anual,a cautionbox indi - catesa potentiallyhazardoussituationwhich,ifnot avoided,may resultinm inororm oderateinjury. Warnings W arningsidentify potentially dangeroussituationsor serioushazards.In thism anual,a warning indicates an immi nently hazardoussituation w hich,ifnot avoided,couldresultinseriousinjuryordeath. SafetyMessages EchotelMo dels9 40 & 941 are designed forusein Category II, Pollution De gree2 installations.Followall standardindustryproceduresforservicing electricaland com puterequipmentwhen wo rking withoraroundhigh voltage.Alwaysshutoffthe power supplybeforetouch - ing any compo nents. Electricalcompo nentsaresensitivetoelectrostaticdis - charge.T o preventequipmentdam age,observesafety procedureswh en workingwithelectrostaticsensitive com ponents. Thisdevicecomp lieswithPart15 ofthe FCC rules. Op erationissubjecttothefollowing two conditions: (1) Thisdevicem ay not cause harmfulinterference, and (2) Thisdevice m ustacceptany interference received,including interferencethatma y cause undesired operation. W ARN ING ! Explosion hazard.D o notconnectordis - connectequipmentunlesspower hasbeensw itchedoff orthe area isknow n to be non-hazardous. Low Voltage Directive ForuseinCategoryII installations.Ifequipmentisused in a m anner not specifiedby m anufacturer,protection provided by equipmentmay be impaired. NoticeofT radem ark,Co pyright,and Limitations Echotelisa registered tradename ofM agnetrol International,Incorporated. Copy right© 2009 M agnetrolInternational, Incorporated. Allrightsreserved. Magn etrolreservesthe rightto m akechangesto the productdescribedinthism anualatany time w ithout notice.Magn etrolm akesno w arranty w ithrespectto the accuracy ofthe inform ationinthism anual. Wa rranty AllM agnetrolelectronicleveland flow productsare warranted freeofdefectsinm aterialsorwo rkmanship forone fullyearfrom the date oforiginalfactory shipment. Ifreturned within thewarranty period; and,upon factoryinspection ofthe control,the cause oftheclaim isdetermined tobe coveredunderthe warranty; then, Mag netrolwillrepairorreplacethe controlat no costtothepurchaser(orowner) otherthan transportation. Magn etrolshallnotbe liableform isapplication, laborclaims,directorconsequentialdamage orexpense arisingfrom the installation oruseofequipment. Th ere are no otherw arrantiesexpressed orimplied, exceptspecialw ritten w arrantiescovering some Magn etrolproducts. Qu alityAssurance Th e quality assurance system inplace atM agnetrol guaranteesthe highestlevelofqualitythroughoutthe compan y.M agnetroliscom m itted to providing fullcustome rsatisfaction bothin qualityproductsand quality service. Magn etrol’squalityassurancesystem isregistered to ISO 9001 affirming its comm itmentto know n international qualitystandardsproviding the strongestassuranceofproduct/service qualityavailable.

351-647 EchotelModel 940 & 941 UltrasonicLevelSwitches Ultrasonic transducer Customer provided conduit Transmit crystal Receive crystal Figure1 Ultrasonicsignaltransm ission across transducergap

1.0 Introduction

1.1 Description

EchotelM odel940 & 941 Ultrasonic LevelSw itchesare comp actintegralunitsthatutilize pulsed signaltechnology toperform high orlow levelm easurementin a wide variety ofliquidapplications.T heseswitchesfeature pulsed electronicsthatareencapsulated atthe top oftheprocess fitting and a 316 stainlesssteeltip-sensitivetransducer. Mo del940 featuresa 1 am p SPD T relayoutputw hile the941 hasa currentshiftoutput.

1.2 PrincipleofOperation

Echotel940 & 941 levelswitchesutilizeultrasonicenergy todetectthe presence orabsence ofliquid in a tip sensitive transducergap.The principleofcontactultrasonictech - nologyisthathighfrequency sound w avesare easilytrans - mitted acrossa transducergap in the presence ofliquid, butare attenuated w hen thegap isdry(seeFigure 1). The M odel 940 & 941 usethisultrasonic technologyto perform liquidlevelm easurem entin a wide varietyof processme diaand application conditions. A pairofpiezoelectric crystalsareencapsulated inepoxy at the tip ofthe transducer.Th e crystalsarem adeofa ceramic materialthatvibratesata given frequency w hen subjected toan applied voltage.The transmitcrystalconvertsthe applied voltage from the electronicsinto an ultrasonicsignal. Whe n liquid ispresentin the gap,the receivecrystalis abletosensethe ultrasonicsignalfrom the transmitcrystal and convertitbackto an electricalsignal.Thissignalis senttothe electronicsto indicate the presence ofliquidin thetransducergap.Whe n thereisno liquidpresent,the ultrasonicsignalisattenuated and isnotdetected by the receivecrystal.

1.3 GettingStarted

Mo del940 & 941 areextremely com pactlevelswitches with electronicscom pletelypotted in an extension piece directlyabovethe stainlesssteeltransducer.The 18" (457 m m ) long 18 AW G flying lead wiresaretypically term inated eitherinside conduitora custome rsupplied junction box.No specialtoolsarerequired toperform installation.

TypicalMo unting Orientations 51-647 EchotelModel 940 & 941 UltrasonicLevelSwitches 4

2.0 Installation

2.1 Unpa cking

Unp ackthe instrum entcarefully.Inspectallunitsfor dam age.R eportany concealeddam agetocarrierwithin 24 hours.Check thecontentsofthepacking slip and purchase order.Check and recordthe serialnum berfor futurereference when ordering parts. serialnumber

2.2 ElectrostaticDischarge (ESD)Handling

Magne trol’selectronicinstrumentsarem anufactured tothe highestqualitystandards.T hese instrum entsuseelectronic comp onentsthatm ay be damaged by static electricitypres - entin m ostwo rkenvironmen ts. Make sure thatallelectricalconnections are comp letely mad e and none arepartialorfloating.Ground allequip - me nttoa good,earthground.

2.3 Mounting

Mo del940 & 941 levelsw itchesmay be mo unted ina varietyofpositions asshow n in Figures2 through 5. Properorientation ofthetransducergap w illfacilitate max imum performan cein difficultapplications.W hen the switch ism ounted horizontally,the transducergap mu stbe turned verticaltoallow properdrainageofliquid outof thegap.The wrench flatson the m ounting nutare aligned with thetransducergap; therefore,propertransducer mo unting can be achieved by aligning the mo untingnut flatsin a verticalorientation.See Figure4. Whe n installed ina nozzleorpipe,the transducergap mu stextend into thetank atleastone inch beyond the inside tank wall.RefertoFigure5. Screw transducerintothe opening using a w rench on the transducerm ounting nutflats.Ifflanged,boltunittomat - ingflangew ithpropergasket.Use thread tape orsuitable pipe comp ound on thethreads.D o notover-tighten.

51-647 EchotelModel 940 & 941 UltrasonicLevelSwitches 5

2.4 Wiring

2.4.1 Mod el940 (Relay O utput)

Wiring term inations fortheM odel940 areshown in Figure 6.The sixwirescoming outoftheswitchare 18 AW G. T hese wiresshouldbe connected tofieldw iring thatis14 to 22 AW G. Cau tion: Co nduit should be installed onto the 3 ⁄4" N PT connection on the back of the unit.An approved seal drain fitting should be used to prevent m oisturefrom entering the switch. All w iring,conduit,and electrical fittings must conform tolocalelectricalcodes forthelocation selected. Fieldw iring shouldbe connected asfollow s: 1. Con nectpow erwiring via the red (+) and black (-)wires. 2. Green w ire shouldbe connected to earth ground. 3. The SPDT relayisconnected:

• VioletwireisNO
• Brown w ire isNC
• Or angewireisCOM

2.4.2 Mod el941 (CurrentShiftOutput)

Wiring term inations fortheM odel941 areshown in Figure 7.The threew irescom ing outofthe switchare 18 AWG. These wiresshouldbe connected to fieldwiring thatis14 to 22 AW G. Cau tion: Co nduit should be installed onto the 3 ⁄4" N PT connection on the back of the unit.An approved seal drain fitting should be used to prevent m oisturefrom entering the switch. All w iring,conduit,and electrical fittings must conform tolocalelectricalcodes forthelocationselected. Fieldw iring shouldbe connected asfollow s: 1. Con nectpow erwiring via the red (+) and black (-)wires. 2. Green w ire shouldbe connected to earth ground. Orange (COM) Brown (NC) Violet (NO) Red (+) Black (–) Green (GND) Figure 7 Mo del941 Red (+) Black (–) Green (GND) Figure 6 M odel940 Figure3 VerticalMo unting Actuation point Process□ connection Use wrench on flats Tank wall Ensure gap is vertical by□ turning wrench flats vertical Front view□ of gap Gap must clear nozzle Figure 4 Horizontal Mounting Figure 5 Nozzle Mounting

6 51-647 Echotel Model 940 & 941 Ultrasonic Level Switches

3.0 Reference Information

3.1 Specifications

3.1.1 Physical

Inches (mm ) M odel 940/941 with Hygienic flange Mo del 940/941 with 3⁄4" NPT Mo del 940/941 with ANSI Flange 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)

3.2 Replacement Parts

Mode l 940 an d 941 units have no replacement parts. A new unit must be ordered. Consult factory. Pow er Supply: 12–35 VDC Pow er Consumption: Less than 1 Watt Signal Output: Mo del 940: SPDT relay, 1 amp @ 30 VDC, 0.5 amp @ 125 VDC, 0.5 amp @ 150 VAC Mo del 941: Dry Gap : 8 mA (±1 mA) Wet Gap: 16 m A (±1 mA) Ca bling: 18" (457 mm) flying leads of 18 AWG wires Repe atability: 0.078" (2 m illimeters) Respo nse Time: 1⁄2 second typical A mbient Tempe rature: -40° to +185° F (-40° to +85° C) Process Temperature: -40° to +185° F (-40° to +85° C) M aximum Pressure: 2000 psig (138 bar) for 1" (3 cm) and 2" (5 cm) transducers 1500 psig (103 bar) for transducers longer than 2" (5 cm) Ingress Protection: Type 4X (IP66 ) Shock ANSI/ ISA-S7 1.03 Class SA1 Vibration ANSI/ ISA-S7 1.03 Class VC2

3.1.2 Electrical

3.1.3 Environmen tal

1 FM/CS A Intrinsically Safe & Non-Incendive (Model 941 only)

7 FM/CS A Non-Incendive (Model 940 only)

3.5 Mod el Numbers

51-647 Echotel Model 940 & 941 Ultrasonic Level Switches BA SIC MODEL N UMB ER

940 Low cost compact ultrasonic level switch with SPDT relay output

941 Low cost compact ultrasonic level switch with current shift output

E English (inches) M Metric (centimeters) PRO C ESS CON NEC TIONS These units have been tested to EN 50081-2□ and EN 50082-2 and are in compliance with□ the EMC Directive 89/336/EEC.

3.3 Agency Approvals

AGE NC Y APPR OVE D M O D ELS PRO TEC TION M ETH O D AR EA CLAS SIFICATION FM & CSA 9 4X-XXX X-XXX Non -Incendive Class I, Div. 2, Groups A, B, C, & D Class II, Div. 2, Groups E, F , & G Class III, Type 4X, IP 66, T4 9 41-XXX X-XXX Intrinsically Safe Class I, Div. 1, Groups A, B, C, & D C lass II, Div. 1, Groups E, F , & G Class III, Type 4X, IP 66, T6

3.4 Troubleshooting

No signal with level change C heck w iring to make sure proper input voltage is supplied. M ake sure liquid is filling the transducer gap. C heck for dense foam on surface or dried product in the gap. U nit may not function properly if either condition exists. No change in output between wet gap or dry gap C heck to see if transducer gap is plugged with solids. C heck for dense foam in gap. The switch is chattering C heck for proper input voltage supply. C heck for turbulence. Relocate switch or isolate from turbulence. C heck for excessive aeration. 1 to 100 inches (Example: 4 inches = 004) 3 to 250 centimeters (Example: 6 cm = 006) A vailable ES P length = 1” (001) Note: Optional NEMA 4 cast aluminum junction box assembly 052-7012-XXX is available from the factory. *Minimum actuation length of 2 inches or 5 centimeters 11 3 ⁄4" NP T 22 1" BSP (G1)* 23 1" 150# ANS I R F flange* 33 1.5" 150# A NS I RF flange* 43 2" 150# ANS I R F flange* 3T 1"/1.5" Tri-Clam p 16 AMP fitting* 4T 2" Tri-Clam p 16 AM P fitting*

BULLETIN: 51-647.2 EFFECTIVE: September 2009 SU PERSEDE S: September 2006 5300 Belm ont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com

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

Heikensstraat 6 • B 924 0 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 Internatio nal, Incorporated. All rights reserved. Printed in the USA. Service Policy Ow ners of Magnetrol m ay request the return of a control or any part of a control for complete rebuilding or replace - ment. They will be rebuilt or replaced promptly. Con trols returned und er our service policy must be returned by Prepaid transportation. Magne trol will repair or replace the control at no cost to the purchaser (or owner) other than transportation if: 1. Returned within the warranty period; and 2. T he factory inspection finds the cause of the claim to be covered under the warranty. If the trouble is the result of conditions beyond our con - trol; or, is NOT covered by the warranty, there will be charges for labor and the parts required to rebuild or replace the equipment. In some cases it may be expedient to ship replacement parts; or, in extreme cases a com plete new con trol, to replace the original equipment before it is returned. If this is desired, notify the factory of both the model and serial numbe rs of the control to be replaced. In such cases, credit for the m aterials returned will be determined on the basis of the applicability of our warranty. No claims for misapplication, labor, direct or consequen - tial dama ge will be allow ed. Re turn M aterial Procedure So that w e may efficiently process any m aterials that are returned, it is essential that a “R eturn Material Auth orization” (RM A) num ber be obtained from the fac - tory, prior to the m aterial's return. Th is is available through M agnetrol’s local representative or by contacting the factory. Please supply the follow ing information: 1. Co m pany Nam e 2. D escription of M aterial 3. Serial Number 4. Reason for R eturn 5. A pplication An y unit that w as used in a p rocess mus t be properly cleaned in accordance w ith O SHA standards, before it is returned to the factory. A Mat erial Safety D ata Sheet (M SD S) mus t accompany material that w as used in any m edia. All shipments returned to the factory must be by prepaid transportation. All replaceme nts w ill be shipped F .O.B. factory. N OTE: See E lectrostatic D ischarge H andling Procedure on page 4. ASS UR ED QU AL ITY & SER VICE COST LESS