Transmitters

141WINTERS INSTRUMENTS Tel: 1-800-WINTERS / www.winters.com

LTDDifferential Transmitter

141WINTERS INSTRUMENTS Tel: 1-800-WINTERS / www.winters.com

Description & Features:• Designedtomeasurethewettowetdifferentialpressuresofliquids andgases• Compact,efficientdesignavailableinLoworHighpsirangesthat facilitatesinstallationintightspaces• LowRangehousingisconstructedofstainlesssteelandaluminum• HighRangehousingismadefroma316-gradestainlesssteelideally suitedforanindustrialenvironment• Fastresponsesensorandsignalconditionedelectroniccircuitry providequickandaccuratereadings• Uniqueisolationsystemrespondstopressurechanges approximately20timesfasterthanconventionaltransmitterswith rangesbelow100psi(LowRangemodel)• CEapprovalisstandardonallmodels• NEMA4approvalisstandardontheLowRangemodel• 1yearwarranty

Applications:• Tomeasurepressuredropsacrossfilters• Pumpsandcompressors,flowmeasurementsofgasesand liquids,liquidlevelmeasurementofpressurizedvessels

Specifications Low Range High RangeElectrical Output 4-20mA,2wire0-5Vdcor0-10Vdc 4-20mA,2wire(otheroptionsavailable)

Electrical Connection Barrierstripterminalblockwithconduitenclo-sureand0.875dia.conduitopening DIN43650withmate

Excitation Voltage 9-30Vdc 8-38Vdc

Wetted Parts/Connection 17-4PHSSwithViton®O-ring,1/4”-18NPTfemale

316LSS,1/4”NPTfemale300seriesSS,17-4PHSSwithViton®O-ring

Housing 304SS,castaluminum 316LSS

Proof Pressure Refertopressurerangechartonnextpage Refertopressurerangechartonnextpage(20Xfullscaleoptional)

Burst Pressure Refertopressurerangechartonnextpage RefertopressurerangechartonnextpageNormal Operating Temperature Range 0°Fto175°F(-17°Cto79°C) -40°Fto200°F(-40°Cto93°C)

Compensated Temperature Range 30°Fto150°F(0°Cto65°C) 0°Fto170°F(-18°Cto76°C)

Ambient Temperature Effect on Zero/Span ±2%offullscale/100°F(37.7°C) ≤±1.5%FSOovercompensatedrange

Response Time 30-50msec <50msecLong Term Stability ±0.5%FSO/yr ≤±0.25%FSO/yrWeight 14.4oz.(408g) 13oz.(368g)Accuracy ±0.25%FSO ±0.25%FSOEnclosure Rating IP65 IP65

Viton®isaregisteredtrademarkofDuPontPerformanceElastomers

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21.LowRange2.HighRange

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142 Tel: 1-800-WINTERS / www.winters.com WINTERS INSTRUMENTS

LTD Differential Transmitter

142 Tel: 1-800-WINTERS / www.winters.com WINTERS INSTRUMENTS

LTD Low RangeUni-directional Bi-directional

Gauge psid

Proof Pressure

psi

Burst Pressure

psi

Gauge psid

Proof Pressure

psi

Burst Pressure

psi0/1 2.5 20 0/±0.5 1.25 200/2 5 40 0/ ±1 2.5 400/5 12.5 100 0/±2.5 6.25 100

0/10 25 100 0/±5 12.5 1000/25 62.5 250 0/±10 25 2000/50 125 250 0/±25 62.5 250

0/100 250 250 0/±50 125 250

LTD High RangeGauge psid

Proof Pressure psi

Burst Pressure psi

0/50 100 7500/100 200 1,0000/200 500 2,0000/500 1,000 3,000

0/1,000 2,000 5,0000/3,000 4,500 7,5000/5,000 7,500 10,000

Order CodesLow Range Wet/Wet Uni-directional

Range Code0/1 (27.7in/H2O) LTDU10/2 (55.4in/H2O) LTDU20/5 (138.4in/H2O) LTDU50/10 (276.8in/H2O) LTDU100/25 psi LTDU250/50 psi LTDU500/100 psi LTDU100

Low Range Wet/Wet Bi-directionalRange Code

±0/0.5 (13in/H2O) LTDB0.5±0/1 (27.7in/H2O) LTDB1±0/2.5 (69in/H2O) LTDB2.5±0/5 (138.4in/H2O) LTDB5±0/10 (276.8in/H2O) LTDB10±0/25 psi LTDB25±0/50 psi LTDB50

High Range Wet/Wet Range Code

0/150 psid LTD1500/200 psid LTD2000/300 psid LTD3000/500 psid LTD5000/1,000 psid LTD10000/3,000 psid LTD30000/5,000 psid LTD5000

Option suffix:4WCABLE=4wireshieldeddatacable(perft.)

Otherranges(e.g.bar,etc.)availableuponrequestOtheroutputsandoptionsavailableuponrequest

Definitions:• Wet/Wet=Canbeusedonanyliquidorgasthatiscompatiblewith316SS• Uni-directional=Theinstrumentiscalibratedwitha4mAoutputat0psidand20mAoutputatfullscale (i.e.For0-10psidrange:4mA=0psidand20mA=10psid)• Bi-directional=Theinstrumentiscalibratedwitha12mAoutputat0psid/zerocentre (i.e.For0-10psidrange:4mA=-5psid,12mA=0psidand20mA=+5psid)

Transmitters

143WINTERS INSTRUMENTS Tel: 1-800-WINTERS / www.winters.com

LTDDifferential Transmitter

143WINTERS INSTRUMENTS Tel: 1-800-WINTERS / www.winters.com

Low Range

• Forvoltageoutput,useCOM, OUTandEXCterminals• Forcurrent(4-20mA)output, use+and-terminals

High Range Hirschmann® Mini-Din Pin Out:

4-20mA output Supply Power: 8-38 VdcMini-Din Connection

Pin Colour Code V mA1 N/A +Excitation +Excitation/Signal2 N/A -Excitation/Signal -Excitation/Signal3 N/A + Signal NC

Grnd N/A Gnd GndWire Lead Connection

Wiring Colour Code V mA1 Red +Excitation +Excitation/Signal1 Black -Excitation/Signal -Excitation/Signal1 Green + Signal NC

Grnd Shield/White Gnd Gnd

CurrentOutputUnits• LowRange(currentoutput)transducersaretrue 2-wire,4-20mAcurrentoutputdevices• Deliverratedcurrentintoanyexternalloadof 0-1000ohms• 4-20mAcurrentoutputunitsaredesignedtohave currentflowinonedirectiononly.Pleaseobserve polarity• Anelectricalcableshieldshouldbeconnectedto thesystem’sloopcircuitgroundtoimprove electricalnoiserejectionMIN Supply Voltage: 9+0.02x(Resistanceof receiverplusline)MAX Supply Voltage: 30+0.004x(Resistanceof receiverplusline)

Hirschmann®isaregisteredtrademarkofHirschmannLaborgeräteGmbH&Co.