2. Potter
  3. IFS Series Industrial Flow Switch

Potter IFS Series Industrial Flow Switch Owner's manual

  • Hello! I've analyzed the provided datasheet for the Potter IFS/IFSS series industrial flow switches. This document details the specifications, installation, and wiring of these switches, which are designed for use in liquid flow lines. It includes models with different contact configurations and pipe connections. I'm ready to answer any questions you might have about these devices and their use.
  • What is the maximum service pressure for these flow switches?
    What type of enclosure do these switches have?
    What is the media temperature range for these flow switches?
    What size pipe can these switches be used with?
MFG. #5401022 - rev P-1
6/10
PrINTeD IN USA PAGe 1 OF 3
IFS/IFSS SERIES
INDUSTRIAL FLOW SWITCH
Listings/Approvals:
• UL Guide (NKPZ) for industrial control equipment per UL
Standard508Industrial
• ULGuide(MFHX)forheating/coolingapplianceswitchperUL
Standard353LimitControls
• CSAClass(321106)forindustrialcontrolequipmentperCSA
StandardC22.2No.14-MIndustrialControlEquipment
Maximum Service Pressure: 250 PSI
Enclosure: NEMAType1(Forindooruseonly)
 Formedsheetmetalwithpowdercoatnish.
 (Notforuseinhazardouslocations.)
IFS Contacts:
 IFS-1/IFSS-1:OneSPDT(FormC)switch
 IFS-2/IFSS-2:TwosetsofSPDT(FormC)switchestoprovide
versatilityinwiringtwoseparatecircuits.
 15Ampsat125/250VAC
 .5Ampsat125VDC
 .25Ampsat250VDC
Motor Ratings : 120VAC 240VAC
Horsepower :  1/8 1/4
AC F.L.A. : 3.8 2.9
AC L.R.A. : 22.8 17.4
Pilot Duty Rating :125VA 120/240VAC
IFS-HC Contacts:
 IFS-HC-1/IFSS-HC-1:OneSPDT(FormC)switch
 IFS-HC-2/IFSS-HC-2:TwosetsofSPDT(FormC)switchesto
provideversatilityinwiringtwoseparatecircuits.
 22Ampsat125/250VAC
Motor Ratings :120VAC 240VAC
Horsepower : 1/2 1
AC F.L.A. : 9.8 8.0
AC L.R.A. : 58.8 48.0
Pilot Duty Rating :125VA 120/240VAC
Ambient Temperature Range:
 32°F/176°F(0°C/80°C)
Media Temperature Range:
 32°F/250°F(0°C/121°C)
IFS / IFS-HC Pipe Connection:
 1in.NPTBrass
IFSS / IFSS-HC Pipe Connection:
1in.NPT316StainlessSteel
Conduit Entrance: Twoopeningsfor1/2"conduit
Usage: Forpipesizes1"-8"
Note: ModelIFS-WPavailablewithNEMA4enclosurefor
 outdooruse.(Seebulletinno.5401041).
IFS-1StockNo.9000001(CEMarked)
IFS-2StockNo.9000002(CEMarked)
IFS-HC-1StockNo.9000003
IFS-HC-2StockNo.9000004
IFSS-1StockNo.9000310(CEMarked)
IFSS-2StockNo.9000311(CEMarked)
IFSS-HC-1StockNo.9000312
IFSS-HC-2StockNo.9000313
General
TheModelIFSisaowswitchusedinliquidowlinescarryingwater
or any uid not harmful to brass, stainless steel, or EPDM and not
classiedasahazardousuid.
Thisswitchcanserveasawaytostartandstopelectricallyoperatedequipment
whenaowornoowconditionoccursinavarietyofapplications.
Thisdeviceisdesignedforuseonlyasanoperatingcontrol.Wherean
operatingcontrolfailurewouldresultinpersonalinjuryand/orlossof
property,itistheresponsibilityoftheinstallertoadddevices(safety,
limit controls) that protect against, or systems (alarm, supervisory
systems)thatwarnofcontrolfailure.
PotterElectricSignalCompany,LLC•St.Louis,MO•CustService:866-572-3005•TechSupport:866-956-0988•Canada888-882-1833 •www.pottersignal.com
Thisdeviceisnotintendedforapplicationsinexplosiveenvironments.
firealarmresources.com
MFG. #5401022 - rev P-1
6/10
PrINTeD IN USA PAGe 2 OF 3
IFS/IFSS SERIES
INDUSTRIAL FLOW SWITCH
Mounting And Installation
TheModelIFSmaybemountedinahorizontalpipelineoravertical
pipelinewithupwardliquidow.Itisnotrecommendedforinstallations
whereowisdownward.Whenmountedinahorizontalpipelinethe
switchwilltripatalowerowratethanshowninFig.7.
Mountthedeviceinasectionofpipewherethereisastraightrunof
atleast5pipediametersoneachsideoftheowswitch.Donotlocate
adjacenttovalves,elbowsororices.Theswitchshouldbemountedso
theterminalsorwireleadsareeasilyaccessibleforwiring.
IFSmodelswithexiblepaddlesarefurnishedwith4paddles.Rigid
paddlemodelsarefurnishedwith2paddles.Forpipesizes1",2",3",6",or
8",usethepaddlesprovided.Intermediatesizesmaybetrimmedfrom
theappropriatepaddleusingthepaddletemplateinFig.5.Thepaddle
mustnottouchtheinsideofthepipeorbindinanyway.Paddlessmaller
thantheactualpipesizeshouldbeusedforaddedsupportandhigher
sensitivity.SeeFig.3.Thepaddlesmustbeproperlyattachedandthe
screwthatholdsthepaddlemustbesecurelytightened.
Fora1"pipeapplicationmountinastandard1"x1"x1"tee.Usea
reducingteeforlargersizesofpipetokeepowswitchclosetopipe
andprovideadequatepaddlelengthintheowstream.
Example:Usea2"x2"x1"teefor2"pipe.Aweldoletmayalsobe
used.ScrewthedeviceintotheteettingasshowninFig.4.Theatof
thepaddlemustbeatarightangletotheow.Thearrowonthesideof
thebushingmustpointinthedirectionofow.
Fig. 3
Typicalpaddlearrangement
for6"to8"pipe.
Note: Turnscrewclockwise
toincreasetheow
raterequiredto
activatetheswitch.
 Turnscrewcounter-
clockwisetodecrease
theowraterequired
toactivatetheswitch.
Fig. 1
Fig. 2
Fig. 4
ScrewthedeviceintotheTEEttingasshown.Caremustbetakento
properlyorientthedeviceforthedirectionoftheow.Donottightenby
graspingtheswitchenclosure.Usethewrenchingatsonthebushing
only.TurningradiusrequiredformountingtheIFSis3".
firealarmresources.com
MFG. #5401022 - rev P-1
6/10
PrINTeD IN USA PAGe 3 OF 3
IFS/IFSS SERIES
INDUSTRIAL FLOW SWITCH
Usedrawingasatemplateandtrimatthedottedarcwhentrimming
theappropriatepaddleforintermediatepipesizes.
Fig. 5
Thepaddlemustnottouchtheinsideofthepipeorbindinanyway.
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MFG. #5401022 - rev P-1
6/10
PrINTeD IN USA PAGe 4 OF 3
IFS/IFSS SERIES
INDUSTRIAL FLOW SWITCH
Notes:
1. Typicalowratesfor1"to11/2"pipesizesareaverageswhichmay
varyapproximately±1GPMwiththeuseofabronzereducingtee.
2. Typicalowratesfor2"to8"pipesizesareaverageswhichmay
vary±10%withtheuseofa1"weldolet.
 (*)Flowratesforthesesizesarecalculated.
Fig. 7
TypicalFlowRates-GPMRequiredtoActuateSwitch(ForVerticalPipeInstallations)
PipeSize(Inches) 1 1¼ 1½ 2 2½ 3 4 *5 6*8
Minimum
Adjustment
Flow
Increase 4.5 4.5 6 7.5 13.5 18 35 50 70 210
Flow
Decrease 3.5 3.5 5 5.5 9.5 13 25 40 60 190
Maximum
Adjustment
Flow
Increase 9.5 10 13.5 20 29 50 70 120 180 410
Flow
Decrease 7 8.5 10.5 18.5 26 45 65 105 160 380
Wiring
Useproperlyratedtemperaturesupplywirefortheanticipated
servicetemperature.
MakeallelectricalconnectionsinaccordancewiththeNational
ElectricalCodeandlocalregulations.
SeeFigs.6Aand6Bfordiagramsillustratingswitchaction.
Checktheinstallationfor"no-ow"switchoperation.Make
appropriateadjustmentstothesensitivityadjustmentscrewtobe
suretheswitchrestoresfullyatthedesiredowrate.
Adjustment
Removeswitchcoverandturnthesensitivityadjustingscrew
clockwisetoincreasetheowraterequiredtoactuatetheswitch.
Turnthesensitivityadjustingscrewcounter-clockwisetodecrease
theowraterequiredtoactuatetheswitch.(SeeFig.1.)Besureto
replacethecoveruponcompletionoftheinstallationandadjustment.
IFS-1/IFS-2SwitchInformation
Fig. 6A
SWITCH ACTION
ON FLOW
DECREASE
SWITCH ACTION
ON FLOW
INCREASE
SWITCH ACTION
ON FLOW
INCREASE
SWITCH ACTION
ON FLOW
DECREASE
SECOND SWITCH
PROVIDED ON
MODEL IFS02
SECOND SWITCH
PROVIDED ON
MODEL IFSH2
DWG# 1022-2
COM. N.C. N.O.
COM. COM. COM.
COM. COM.
N.O. N.O.
N.O.
N.O. N.O.
N.C. N.C.
N.C. N.C. COM. N.O. N.C.
TOP OF SWITCH(ES)
N.C. N.C.
N.O.
COM.
TOP OF SWITCH(ES)
IFS-HC-1/IFS-HC-2SwitchInformation
Fig. 6B
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