横河（Yokogawa）DO402G四线制溶解氧仪使用说明书.pdf

User’s

ManualModelDO402G[Style:S3]

DissolvedOxygenConverter

IM12J05D02-01E

IM12J05D02-01E

7thEdition

TABLEOFCONTENTS

PREFACE1

1.IntroductionAndGeneralDescription1-1

1-1.InstrumentCheck1-1

1-2.Application1-2

1-3.Generalinformation1-3

1-4.ConfigurationchecklistforDO4021-5

1-5.SystemConfiguration1-6

1-5-1.DissolvedOxygenSensor1-6

1-5-2.Theholders1-7

2.DO402GSPECIFICATIONS2-1

2-1.General2-1

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.Wiring3-3

3-2-1.WiringofDO30G3-3

3-2-2.WiringofDO70G3-3

3-2-3.Preparation3-4

3-3.Wiringthepowersupply3-5

3-3-1.Generalprecautions3-5

3-3-2.Accesstoterminalandcableentry3-6

3-3-3.ACpower3-7

3-3-4.Groundingthehousing3-7

3-3-5.Switchingontheinstrument3-7

3-4.Wiringthecontactsignals3-8

3-4-1.Generalprecautions3-8

3-4-2.Contactoutputs3-8

3-4-3.Contactinput3-8

3-5.Wiringtheanalogoutputsignals3-9

3-5-1.Generalprecautions3-9

3-5-2.Analogoutputsignals3-9

3-6.Wiringthestandardgalvanicsensor3-9

3-7.Wiringothergalvanicsensors3-10

3-8.Wiringthestandardopticalsensor(DO70G)3-10

3-9.Wiringpolarographicsensors3-11

3-10.WiringRS485signal3-11

4.Operation;DisplayFunctionsAndSetting4-1

4-1.Operatorinterface4-1

4-2