Wise L400 User manual

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C-QIM-2731-F19_EN_Rev.0
Tubular type level gauge
L400
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C-QIM-2731-F19_EN_Rev.0
CONTENT
1. General .................................................................................................................................................................... 2
1.1 Introduction .......................................................................................................................................................... 2
1.2 Information regarding the user manual ................................................................................................. 2
1.3 Warranty................................................................................................................................................................. 2
2. Warnings ................................................................................................................................................................ 3
3. Pre-installationinspections ............................................................................................................................ 4
4. Precautionsforinstallationandoperationoftheproduct ............................................................ 4
4-1. Pre-operation checks (Warming up) ....................................................................................................... 4
4-2. Troubleshooting................................................................................................................................................ 5
5. Maintenanceandrepair ................................................................................................................................. 6
6. Transport,packagingandstorageoftheproduct ............................................................................. 7

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1. General
1.1Introduction
TheTubulartypelevelgaugemanufacturedbyWISEControlInc.isinstalledoutsideofvesselor
tankwhichhascontainingfluid.Fluidentertolevelgaugeattachedoutsideofvesselortank,and
thelevelofthefluidstoredinsidethevesselortankischecked.
Tubulartypelevelgaugesaremanufacturedaccordingtocustomerspecification..
1.2Informationregardingtheusermanual
1) Theusermanualcontainsimportantinformationforproperhandlingofthedevice.
Pleasereadthisusermanualcarefullybeforeinstallationandcommissioning.
2) Pleaseadheretothesafetyandhandlingguidelinesprovidedinthisusermanual.Compliance
mustbemaintainedwiththeapplicableaccidentpreventionandsafetyregulations,aswellas
nationalinstallationstandardsandacceptedcodesofconduct.
3) Thisusermanualispartoftheproduct,andmustbemadeavailableforviewingbyworkers
nearbytheinstallationlocationatalltimes.
4) WISEControlInc.reservestherighttomodifytechnicalelementsoftheproductwithoutprior
notice
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1.3Warranty
TheTubulartypelevelgaugemanufacturedbyWISEControlInc.hasbeenmanufactured
accordingtoindividualcustomerrequirements.
TheProductmustbestoredunderappropriateconditions,andtherequirementsinvarious
documentation,testreportsandusermanualsmustbeobservedtomaintainoptimaluse
condition.
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2. Warnings
Handlingmanualforsafeuse
Toensuresafeandproperuseoftheproduct,pleasethoroughlyreadthismanualbeforeuse.
Improperhandlingmaycauseequipmentmalfunction,aswellasaccidentssuchasinjury.
Warnings
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1) Forsafety,installationmustbecarriedoutbyworkerswithprofessionalexpertisein
instrumentsandelectricalworks.
2) Installtheproductintheuseenvironmentprescribedinthespecifications.
3) Usewithinthegiventemperaturerange.
4) Protectfromexcessiveload,vibrationorimpact.
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3. Pre-installationinspections
1) Checkforanydamagetotheproductduringtransport.
2) Checkthetagnumberoftheproductandtheinstallationlocation.
3) Checktheisolationvalveatthelocationonthevesselortankwherethelevelgaugewillbe
installedislocked,andthatthegaugevalveoflevelgaugeislocked.
4) Checktheflange,etc.therethelevelgaugewillbeinstalledonthevesselortankisfreeof
foreignmaterial.
5) Inordertopreventdamagetothegaugetubeduetodistortionofthemainbody,checktheC
toC&theflatnessoftheflangesurface,whethertheboltholesbetweenbothflangesare
straight,andwhethertheheightofbothflangesurfacesisthesame..
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4. Precautionsforinstallationandoperationoftheproduct
4-1.Pre-operationchecks(Warmingup)
1) Warmupforapproximately80minutesuntilthetemperatureandpressureoftheinstalledlevel
gaugematchthetemperatureandpressureofthetankorothervesselwherethelevelgauge
hasbeeninstalled.
2) Oncethelevelgaugeisready,slowlyopentheuppergaugevalve.Openthelowergaugevalve
byturningapproximately2to3timestoallowthefluidinsidethevesseltolowlyenterthelevel
gauge.
(Suddenlyopeningthegaugevalvecausingrapidflowoffluidintothelevelgaugemaytrigger
thecheckballandblocktheentryoffluidintothelevelgauge.Theimpactfromasuddeninflow
offluidmaydamagetheglassofthelevelgaugecover.)
3) Confirmthroughtheglasscoverofthelevelgaugethatthefluidentersthegaugeandindicates
thelevelinsidethevessel.Thencompletelyopenthelowergaugevalve.

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4-2.Troubleshooting
Iftheleveloffluidisnotvisiblethroughtheglasscoverofthelevelgaugeevenafterthelevel
gaugehasbeeninstalled,pleasecheckthefollowing.
1) Confirmthattheblockvalveonthevesselandthegaugevalveofthelevelgaugeareopen.
(Thefluidwillnotenterthegaugeistheblockvalveandgaugevalveareclosed.)
2) Wheninstallingandoperating,checkifrapidingressoffluidhastriggeredthecheckball.
(Ifthecheckballofthegaugevalvehasbeentriggered,closethegaugvalvefully,thenopenthe
gaugevalvebyturning1to2timestoallowthefluidtoslowlyenterthelevelgauge.)
3) Checktheinsideofthelevelgaugeforforeignmatter.
(Foreignmatterinthelevelgaugemayblocktheinflowoffluid.)
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5. Maintenanceandrepair
1) Observefactorysafetyregulationsatalltimes.
2) Priortobeginningwork,confirmthatinsideoflevelgaugehavebeenempty..
3) Whenreassemblingtheproductafterdisassembly,newgasketsmustbeused. 
4) Theprocedurefordisassemblyandassemblyisasfollows..
< Figure 1 >
4-1)Disassembly(See<Figure1>)
(a) Closethegaugevalve(upperandlower)andopenthedrainvalvetoremovefluidand
pressure.
(b) Loosenthehoseband(①)andtheconnectionnut(②)andremovethegaugetubeand
theprotectiontubefromthevalve.
4-2)Reassembly(See<Figure1>)
(a) Slightlyheatthegaugetube(⑤)andinsertthesleeve(④).
(b) Usingaconnectionnut(②)andasleevegasket(③),assemblethegaugetubeassembled
in(a)tothegaugevalve(tightenittopreventleakage)
(c) Securetheprotectiontube(⑥)tothesleeve(④)usingahoseband(①).
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6. Transport,packagingandstorageoftheproduct
1) Theproductmustnotbeexposedtohumidity,dustorothercontaminants.
2) Theproductmustnotbesubjectedtoimpactduringstorage.
3) Whenreturningtheproductforrepairs,safelypackagetheproductinitsoriginalpackaging,
andreturntherelateddocumentationaswell.
4) Theproductshouldbeprotectedfromexposuretohumidity,dustandothercontaminants
duringtransport.
5) Theproductshouldbepackagedtoprotectagainstimpactduringtransport.
6) Anydamagetotheproductduringtransportshouldberecordedinthedocumentation.Claims
forcompensationfordelaysininstallationmaybemadeagainstthetransportingcompany.
7) Relativehumidityandtemperatureareappliedaccordingtobelowcondition,duringstorage
andtransporting.
- Temperature:20±10℃/Relativehumidity:Max.60%.
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Thecontentofthisdocumenthasbeenpainstakinglyproduced,butpleaseunderstandthattheremaybetyposorcorrectionstobe
made.Thespecificationsandappearanceofthisproductaresubjecttochangewithoutnoticeforqualityimprovement,andWISE
reservestherighttochangethis.Theillustrationsuseinthisinstructionmanualareforillustrativepurposesonlyandmaydifferfrom
theactualproduct. 
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YonginFactory
2022Deogyeong-daero,Giheung-gu,
Yonging-si,Gyeonggi-do(Sanggal-
dong)
www.wisecontrol.com
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A/SrelatedInquiries
2022Deogyeong-daero,Giheung-gu,
Yonging-si,Gyeonggi-do(Sanggal-
dong)
[e-mail]
Homepage:Service
center>Technology/QuoteInquiry


WISEControlINC.
#181,Gasandigital1-ro,Geumcheon-
gu,Seouk(Gasan-dong,GasanW
CENTER)19F
T.02-300-2300
F.02-300-2400
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C-QIM-2731-F19_KR_Rev.0
Tubular type level gauge
L400
