横河（Yokogawa）DC402G型电导率、电阻率变送器使用说明书.pdf

User’s

Manual

ModelDC402G[Style:S2]

ConverterforDualCell

ConductivityandResistivity

IM12D08E02-01E

IM12D08E02-01E

3rdEdition

TABLEOFCONTENTS

PREFACE1

1.IntroductionAndGeneralDescription1-1

1-1.InstrumentCheck1-1

1-2.Application1-2

2.DC402GSpecifications2-1

2-1.Generalspecifications2-1

2-2.Operatingspecifications2-2

2-3.Modelandsuffixcodes2-3

3.InstallationAndWiring3-1

3-1.Installationanddimensions3-1

3-1-1.Installationsite3-1

3-1-2.Mountingmethods3-1

3-2.Preparation3-4

3-3.Wiringthepowersupply3-5

3-3-1.Generalprecautions3-5

3-3-2.Accesstoterminalandcableentry3-5

3-3-3.ACpower3-6

3-3-4.Groundingthehousing3-6

3-3-5.Switchingontheinstrument3-6

3-4.Wiringthecontactsignals3-7

3-4-1.Generalprecautions3-7

3-4-2.Contactoutputs3-7

3-4-3.Contactinput3-7

3-5.Wiringtheanalogoutputsignals3-7

3-5-1.Generalprecautions3-7

3-5-2.Analogoutputsignals3-7

3-6.Sensorwiring3-8

3-7.Sensorconnectionusingjunctionboxandextensioncable3-8

3-8.Othersensorsystems3-9

4.Operation;DisplayFunctionsAndSetting4-1

4-1.Operatorinterface4-1

4-2.Explanationofoperatingkeys4-2

4-3.Settingpasscodes4-3

4-4.Displayexample4-3

4-5.Displayfunctions4-4

5.Parametersetting5-1

5-1.Maintenancemode5-1

5-1-1.Introduction5-1

5-1-2.ManualactivationofHold5-2

5-1-3.Setpointadjustment5-3

5-2.Commi