FlowLine EchoSwitch LU74 Series User manual

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EchoSwitch®
UltrasonicLevelSwitchandTransmitter
LU74&LU78SeriesQuickStart
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QS300282RevA1
©2013Flowline,Inc.
AllRightsReserved10500HumboltStreet,LosAlamitos,CA90720USA
MadeinUSATel:562.598.3015•Fax:562.431.8507•www.flowline.com
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WelcometotheEchoSwitch®QuickStart
TheEchoSwitch®QuickStartprovidesbasicmounting,setupanduseinstructionsfor
gettingtheEchoSwitch®upandrunningquickly.Ifyouhaveanon‐standardinstallation
orsetuprequirementthatisnotaddressedhere,pleaserefertotheEchoSwitch®
Manualorothersupportdocumentationlocatedatwww.flowline.com.
WeDoYourLevelBest
ThankyouforpurchasingEchoSwitch®.ThesensorprovidesintegratedLCDandthree
push‐buttonconfiguration.Thisquickstartincludeseverythingyou’llneedtogetthe
sensorupandrunning.
Components
Dependingonhowthesensorpartnumberthatwasshipped,EchoSwitch®comeswitha
Viton®gasketforinstallationandtheQuickStart.
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EchoSwitch®
LU74Series,LU78Series
Viton®gasket(2”)
P/N:200129
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MountingtheEchoSwitch®
Thesensorshouldalwaysbemountedperpendiculartotheliquidsurfaceusingthe
providedViton®mountinggasket.Insurethattherearenorestrictionsorobstaclesinthe
pathoftheacousticsignal.Forfurthermountinginformation,pleaserefertothe
EchoSwitch®manualatwww.flowline.com.
MountingwithaTankAdapter
Selectatankadapterfitting,suchastheLM52‐2890.
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MountinginRiser
Asinstallationswithtall,narrowriserscanimpede
theacousticsignal.2"diameterrisersshouldbeno
tallerthan5".Largerdiameterrisersshouldbeno
tallerthan12".Forbestresults,followa2:1Height
toInnerDiameterratio(example:8”Highto4”
InnerDiameter).
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MountinginSideMountBracket
UseFlowline'sLM50‐1001sidemountbracket.
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LM50‐1001Shown 
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IMPORTANTMOUNTINGGUIDELINES:
1) Nevermountthesensoratanangle.
2) Liquidshouldneverenterthedeadband.
3) Mountatleast3”fromthesidewall.
4) Nevermountinavacuum.
5) Donotobstructthesensor’sbeamwidth.
MountingwithaStand‐Pipe:
Astand‐pipemaybeusedtodampenturbulence,separatesurfacefoamfromthepointof
measurementorincreaseperformanceinheavyvapor.Whenmountingthesensorina
stand‐pipe,theminimumdiameterofthepipeis3”.Largerdiameterpipescanbeused.The
pipeshouldbeattachedwithacouplingortankadapterandreducerbushing.Avoidtheuse
ofmultiplepipefittingswhenpossible.Anidealmountwouldbetoselecta3”tankadapter
(SxTorSxS)andconnectthepipetotheinsideslipanduseareducerbushingtoattachthe
sensor(seeexamplebelow).
Thepipelengthshouldrunthemeasurementspanandthebottomofthepipeshouldremain
submergedatalltimestopreventfoamfromenteringthepipe.Cutthebottomendofthe
pipeat45°anddrilla1/4”pressureequalizationholewithinthesensor’sdeadband.Locate
thestand‐pipeawayfrompumpoutletsand/orothersourcesofsubstantialturbulence
whichmightcausetheliquidinthepipetooscillate.
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3”x2”
ReducerBushing
(TxT)
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3”Tank
Adapter
(SxT)
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3”PVCPipe
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Stand‐PipeExample
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Stand‐PipeMounting
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WiringtheEchoSwitch®
ThefollowingwiringdiagramcanbeusedwhenwiringtotheEchoSwitch®relays.
Note:AllthreerelayssharetheCOMterminal.Relay1hasbothaNOandNCterminal
whileRelays2and3havejustaNOterminal.
Note#1–Isolatepowertoinstrumentfrompowertoload(pumps,etc.)asmuchas
possiblebyrunningpowertothesensordirectlyfrommainpowersource.
Thefollowingwiringdiagramscanbeusedforthe4‐20mAoutputoftheEchoSwitch®.
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Somenotesonsafety:
Wherepersonalsafetyorsignificantpropertydamagecanoccurduetoaspill,the
installationmusthavearedundantbackupsafetysysteminstalled.
Wiringshouldalwaysbecompletedbyalicensedelectrician.
Thesensormustbechemicallycompatiblewiththeapplication.
Designafail‐safesystemforpossiblesensorand/orpowerfailure.
Neverusethesensorinclassifiedhazardousenvironments.

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ConfiguringtheSensor
EchoSwitch®canbeconfiguredbeforeinstallation.Theswitchfeaturesnon‐volatile
memory,sothesetpointsconfiguredbeforeinstallationwillnotbelostwhentheswitchis
powereddown.Tostart,allyouneedisthefollowinginformation:
BasicTankInformation
oHEIGHT–Distancefromthetransducerfaceto
thebottomofthetank.
oFILL‐H–Maximumfillheightoftheliquidfrom
thebottomofthetank.
SetPoints(Relays):
oYouwillneedthemeasureddistancefromthe
bottomofthetanktoeachsetpoint.
oPumpandValveoperationswillhavetwoset
points,oneforONandtheotherforOFF.
oThesevalueswillallbeinthesameunitof
measurement(inches,centimeters,feetor
meters)andwillallbemeasuredfromthe
bottomofthetank.
Power:
oProvideinputpowertotheEchoSwitch®.
Note:TheHeightandFillHeightsettingsalso determinethe4to20mAcurrentspan.The
Heightsettingdeterminesthe4mApositionandtheFill‐Hsettingdeterminesthe20mA
position.
TOP‐LEVELMENU
Thesensorisconfiguredwiththethreebuttonsonthesensorface
(UP,DOWNandSELECT)andthesensor’sLCD.Toaccessthe
sensor’sTop‐levelmenu,simplyholddowntheSELECTbuttonfor
fiveseconds.Thedisplaymenuwillautomaticallybegintoscroll
throughtheTOP‐LEVELMENU.
Whenthemenuscrollstoanitemyouwishtoconfigure,simply
presstheSELECTbuttontochoosethatitem.TheTOP‐LEVEL
MENUwillcontinuetoscrollthroughthefollowing(UNITS–TANK–RELAY1–RELAY2–
RELAY3–SAFE–(MPLEX)‐HELP–RUN),soifyoumissyourselection,itwillappearagain
shortly.
ToreturntotheTOP‐LEVELMENU,pressSELECTwhenEXITappears.
ToreturntoOperationalModeofthesensor,pressSELECTwhenRUNappearsinthe
TOP‐LEVELMENU.
Note:Tospeedupthescrollingofthevaluesonthedisplay,holddowntheSELECT
buttonwhileholdingdowntheUPorDOWNbuttons.

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SetUnits
TheEchoSwitch®displaysinformationinthefollowingunits:inches,feet,centimeters,
metersorpercentage.Thevalueshownonthedisplayrepresentstheamountofliquidin
thetank.
1) Press&holdSELECTfor5seconds toenter TOP‐
LEVELMENU.
2) SelectUNITS.
3) SelectthetypeofunitsbypressingSELECT.
4) SelectEXITtoreturntotheTOP‐LEVELMENU.
5) SelectRUNtoreturntoOperationalMode.
SetHeightandFillHeight
Thissettingcustomizesthereadingforyourinstallation.Followtheseinstructionstosetthe
heightandfillheightforyourtank:
1) Press&holdSELECTfor5secondsto
enterTOP‐LEVELMENU.
2) SelectTANK.
3) SelectHEIGHT.
4) UsetheUPandDOWNbuttonstoset
theheightofyourtank.Toenter
value,pressandholdSELECTfor2
secondsandrelease.SAVEDwill
display.
5) SelectFILL‐H.
6) UsetheUPandDOWNbuttonstosetthefillheightofyourtank.Toentervalue,press
andholdSELECTfor2secondsandrelease.SAVEDwilldisplay.
7) SelectEXITtoreturntotheTOP‐LEVELMENU.
8) SelectRUNtoreturntoOperationalMode.
Note:TheHeightandFillHeightsettingsalsodeterminethe4to20mAcurrentspan.The
Heightsettingdeterminesthe4mApositionandtheFill‐Hsettingdeterminesthe20mA
position.
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SetaHighAlarmRelay
Ahighalarmrelaywillnotifyyouwhenthetanklevelreachesapresethighlevel:
1) PressandholdSELECTfor5secondstoenterTOP‐
LEVELMENU.
2) SelectRELAY1,RELAY2orRELAY3.
3) SelectALARM.
4) SelectHIGH(SAVEDappears).
5) UsetheUPandDOWNbuttonstosettheHIGH
(ON)setpointfortherelay.Toentervalue,press
andholdSELECTfor2secondsandrelease.
SAVEDwilldisplay.
6) SelectHYSTER(Hysteresis).
7) UsetheUPandDOWNbuttonstosettheHYSTER
(OFF)setpoint.Toentervalue,pressandhold
SELECTfor2secondsandrelease.SAVEDwill
display.
8) SelectEXITtoreturntotheTOP‐LEVELMENU.
SetaLowAlarmRelay
Alowalarmrelaywillnotifyyouwhenthetanklevelreachesapresetlowlevel:
1) PressandholdSELECTfor5secondstoenterTOP‐
LEVELMENU.
2) SelectRELAY1,RELAY2orRELAY3.
3) SelectALARM.
4) SelectLOW(SAVEDappears).
5) UsetheUPandDOWNbuttonstosettheLOW
(ON)setpointfortherelay.Toentervalue,press
andholdSELECTfor2secondsandrelease.
SAVEDwilldisplay.
6) SelectHYSTER(hysteresis).
7) UsetheUPandDOWNbuttonstosettheHYSTER
(OFF)setpoint.Toentervalue,pressandhold
SELECTfor2secondsandrelease.SAVEDwill
display.
8) SelectEXITtoreturntotheTOP‐LEVELMENU.
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9
FillaTankwithaPumporValve
Therelayscanalsobeusedtoautomaticallyfillatankwhenthelevelinsidedropstoolow.
Tosetthesensortoautomaticallyfillatank:
1) PressandholdSELECTfor5secondstoenter
TOP‐LEVELMENU.
2) SelectRELAY1,RELAY2orRELAY3.
3) SelectPUMPorVALVE(SAVEDappears).
4) SelectFILL(SAVEDappears).
5) SelectON.
6) UsetheUPandDOWNbuttonstosettheON
setpointfortherelay.Thisisthelowerofthe
twosetpoints.Toentervalue,pressandhold
SELECTfor2secondsandrelease.SAVEDwill
display.
7) SelectOFF.
8) UsetheUPandDOWNbuttonstosettheOFF
setpointfortherelay.Thisisthehigherofthe
twosetpoints.Toentervalue,pressandhold
SELECTfor2secondsandrelease.SAVEDwill
display.
Ifyouwishtoaddadelaywhenthepumpstarts,
continuetostep9.Otherwise,selectEXITtoreturn
tothetop‐levelmenu.
9) SelectDELAY.
10) UsingtheUPandDOWNbuttons,setthe
DELAYtimeinseconds.Thispumpdelaycan
rangefrom0to600seconds.Toentervalue,
pressandholdSELECTfor2secondsand
release.SAVEDwilldisplay.
11) SelectEXITtoreturntotheTOP‐LEVELMENU.
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10
EmptyaTankwithaPumporValve
Therelayscanalsobeusedtoautomaticallyemptyatankwhenthelevelinsidegetstoo
high.Tosetthesensortoautomaticallyemptyatank:
1) PressandholdSELECTfor5secondstoenter
TOP‐LEVELMENU.
2) SelectRELAY1,RELAY2orRELAY3.
3) SelectPUMPorVALVE(SAVEDappears).
4) SelectEMPTY(SAVEDappears).
5) SelectON.
6) UsetheUPandDOWNbuttonstosettheON
setpointfortherelay.Thisisthehigherofthe
twosetpoints.Toentervalue,pressandhold
SELECTfor2secondsandrelease.SAVEDwill
display.
7) SelectOFF.
8) UsetheUPandDOWNbuttonstosettheOFF
setpointfortherelay.Thisisthelowerofthe
twosetpoints.Toentervalue,pressandhold
SELECTfor2secondsandrelease.SAVEDwill
display.
Ifyouwishtoaddadelaywhenthepumpstarts,
continuetostep9.Otherwise,selectEXITtoreturn
totheTOP‐LEVELMENU.
9) SelectDELAY.
10) UsingtheUPandDOWNbuttons,setthe
DELAYtimeinseconds.Thispumpdelaycan
rangefrom0to600seconds.Toentervalue,
pressandholdSELECTfor2secondsand
release.SAVEDwilldisplay.
11) SelectEXITtoreturntotheTOP‐LEVELMENU.
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