Aquatech Pressmain MG-L - Installation Instructions; General; Additional Warnings and Cautions; Procedure

TankmaticSmartRelay
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Aquatech‐PressmainInstructionmanual\TankmaticsmartrelayMG‐LT  8
1. INSTALLATIONINSTRUCTIONS
1.1 GENERAL
TheseinstructionsareintendedfortheinstallerofthisLevel/TemperatureMonitoringorcontrolunit.Please
followthemcarefully.Failuretoinstalltheequipmentasrecommendedcouldinvalidatethewarrantyprovided
byAquaTech‐Pressmaintothebuyer.
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1.2 ADDITIONALWARNINGSANDCAUTIONS
1.2.1 READGENERALSAFETYINFORMATION0.0,WARNINGS0.1andCAUTIONS0.2,0.3&0.4
1.2.2 Installationofthisequipmentassumespriorcorrectandsafeinstallationofthetank(s)andthatyou
areawareofallsafetypracticesandhazardsinvolvedwiththetank(s).
1.2.3 Wheninstallingsensorsifyouareunsureofanyaspectyoumustseektheadviceofthetank
manufacturerbeforecommencinganymodifications/alterationstothetankinordernotto
compromiseitsperformance.
1.2.4 Levelsensorsmustnotbesubjectedtomorethan1.5timestheratingofthesensor;otherwise
irreversibledamagemaybedone.
1.2.5 Temperaturesensorsmustremainsubmergedatalltimes.
1.2.6 Whenchlorinationofatankiscarriedout,ensurethatanyresidualchlorineisremovedbythorough
flushingasdetailedintheHSEapprovedcodeofpracticeL8,toavoiddamagingthesubmersible
sensors.Thenormallevelofchlorinationisupto2partspermillion(ppm),butshockdosingfor
sterilizationpurposes,at25‐50ppmfor24‐48hoursisacceptableaslongasallchlorineisremoved
oncetheprocessiscomplete.
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1.3 PROCEDURE
1.3.1 SENSORS
Sensorsareavailableinstandardformforattachingexternallytothesideofthetank,orsubmersible
formforsuspendinginthetankcontents.
1.3.1.1 StandardSensors‐externallymounted
StandardLevelSensorformonitoringliquidlevel:
AstandardLevelSensorisfittedtothesideofthetankviaanisolatingvalveand1/4"BSPparallel
femaleconnectionandwiredtowallmountedconnectionbox,ordirecttothemonitoringunit,within
5m(seeFig1a.).
ThedepthofwaterdisplayedisthatmeasuredfromthelowestpointoftheLevelsensor.
Positionthesensorattheminimumliquidlevel.
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StandardTemperatureSensor:
AstandardTemperatureSensorisfittedtothesideofthetankina1/2"BSPparallelfitting,or
optionallyintoasealedpocket(seeFig1a.)andwiredtowallmountedconnectionboxordirecttothe
monitoringunit,within5m(seeFig1a.).PositiontheTemperaturesensorsothatitissubmergedatall
times.
1.3.1.2 SubmersibleSensors
Submersiblesensorsaresuspendedintheliquidfromaconnectionboxontopofthetankasshownin
Fig1b.Theyarerestrainedbyaweightedguidewireorbyastillingtubetoavoidturbulencedamaging
thesensor.
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Drillingthetanklidtotaketheflange(wheresupplied)seeFig2
Selectasuitableareaofthetank,awayfromturbulence,forthesensorstobefitted.
Cut80mmdiameterholetakingcaretopreventanyswarffallingintothetank.Equallyspacedabout
thishole,mark4holesasshowninFig2,drillandtapM5orfitclenchnutsifrequired.
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