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Hach 900 MAX manual 7 Circuit Board Identification, Cpu Board, Figure, CPU Board Connectors

Models: 900 MAX

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Section 7

Section 7

7.7 Circuit Board Identification

There are two main circuit boards in the sampler; the Utility Board and the CPU board. The CPU board is attached to the bottom panel and the Utility board is located inside the control housing behind the motor/gearbox assembly.

Note: Removal and handling of the circuit boards used in the sampler requires knowledge of ESD (Electro-Static Discharge) precautions and the CMOS (Complementary Metal-Oxide Semiconductor) circuit components used in the sampler. Static electricity has the potential to damage the CMOS components of the sampler when the boards are unplugged and removed from the case. Precautions must be taken to assure static-free personnel and work area prior to handling the circuit boards.

Figure 31

CPU Board

J6J9

J10

				J7
				J1
	CPU BOARD		J4
	CPU BOARD
				F1
	J11	J5		J8
		J2
	Table 20 CPU Board Connectors
ID	Description		ID	Description
J1	Liquid Crystal Display		J7	RS485 Submerged Pressure Transducer
J2	Mechanical Totalizer		J8	Modem Option Module
J3	not used		J9	Liquid Crystal Display (LED back-light)
J4	Base Board		J10	Keypad
J5	Memory Backup Battery Pack		J11	not used
J6	RS232 Serial Port

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8990mnt.fm	Circuit Board Identification

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Hach 900 MAX manual 7 Circuit Board Identification, Cpu Board, Figure, CPU Board Connectors

Contents

INSTRUMENT MANUAL Catalog Number07/03 4ed Sigma 900 MAX Refrigerated SamplerPage Catalog Number Sigma 900 MAX Refrigerated SamplerINSTRUMENT MANUAL Page Table of Contents Table of ContentsPage Table of Contents Table of Contents Trouble Alarm Conditions, Causes, and Solutions Table of ContentsPrecautionary Labels Safety PrecautionsUse of Hazard Information Confined Space Entry Safety Precautions Hazardous LocationsDefinition of Confined Space Specifications Specifications Specifications Factory Installed OptionsRain Gauge Input SpecificationsSubmerged Area/Velocity Probe SpecificationsPage 1.2 Front Panel SectionIntroduction 1.1 Controller CoverPower ON/OFF Key Section1.2.1 Keypad Description 1.2.2 Liquid Crystal DisplayStatus Bar 1.2.3 Internal Humidity IndicatorFigure 2 Humidity Indicator Section1.3.1 Receptacle Caps Section 1.3 Interface ConnectorsFigure Section 1.4 Principle of Operation1.4.1 Liquid Sensing Accurate, Repeatable Sample VolumesIntake Tube Pre-Rinse SectionSample Retry GEFAHR INSTALLATIONDANGER PELIGROPage Figure 4 Setting Up the Instrument InstallationSection 2.2 Selecting the Installation SiteSection 2.3 Installing the Pump Tube in the Sensor BodyFigure 5 Pump Tube Loading 2.3.1.1 Attaching the Vinyl Tubing 2.3.1 Attaching the Intake LineFigure 7 3/8” Vinyl Tubing Connector Section2.3.2 Setting Up the Intake Line and Strainer 2.4 Choosing Bottle and Retainer ConfigurationsSection Figure 9 Bottle Configurations 2.5 Setting Up the Bottles2.5.1 One-BottleSampling 2.5.2 Two- and Four-bottleSamplingFigure 11 Four-bottleLocations 2.5.3 Eight-, 12-,or 24-bottleSamplingSection Figure 10 Two-bottleLocationsSection Figure 12 Eight-, 12-,or 24-bottleConfigurationFigure 13 Distributor Tubing in Arm 2.6.1Distributor Arm AlignmentFigure 14 Distributor Installation SectionFigure 15 Full Bottle Shut-offInstallation 2.8 Power ConnectionsSection Section 2.9Auxiliary Receptacle Pin Identification8990hrd.fm 2.9.1 Splitter InterfaceSection Figure 16 Splitter InterfacePage PELIGRO OPERATIONDANGER DANGERPage Program Delay Section 3 Basic Programming Setup3.1 Initial Power-Upof Sampler 3.2 Basic Programming SetupSection Step 1 - BottlesStep 3 - Program Lock Step 2 - Intake TubingSection Timed-ProportionalSampling Intervals Step 4 - Program DelayStep 5 - Sample Collection Sectiond.Press ACCEPT to continue to Sample Distribution SectionTable 2 Sampler Pacing Flow Units SectionExample SectionCHANGE SectionMultiple Bottle Sets Step 6 - Sample DistributionSection Single BottleIf NO is selected SectionDisabling the Liquid Sensor/Timed Calibration Step 7 - Liquid SensorSection Enabling the Liquid SensorStep 9 - Intake Rinses Section Step 8 - Sample VolumeStep 10 - Sample Retries Variable Volumes Section Step 11 - Site ID3.3 Advanced Sampling 11-D. If NO, the basic setup program is completeStep 13 - Setpoint Sampling Section Step 12 - Program Complete OutputHIGH SectionTable 3 Sampling Triggers and Settings Step 14 - Special OutputSection Section Step 15 - Start/Stop TimesBottle Number Section Step 16 - Storm WaterTable 4 Start Condition Requirements SectionFirst Flush Bottles ACCEPT SectionSection Step 17 - Timed Bottle SetsSection Step 18 - Upset SampleACCEPT SectionSELECT RETURN Step 20 - Variable VolumeSection Step 19 - Variable Intervals VARIABLE VOLUME4.1.2 Downlook Ultrasonic Sensor Programming Sensor Setup4.1 Downlook Ultrasonic Sensor 4.1.1 Downlook Ultrasonic Sensor ConnectionSection 4.1.3.3Setting the Invisible Range4.1.3.2 Sensor Height Section 4.2Submerged Area/Velocity Sensor4.2.1 Submerged Area/Velocity Sensor Connection 4.2.2Submerged Area/Velocity Sensor Programming•The sensor is first used Section4.3.1 Submerged Pressure Sensor Connection 4.3 Submerged Pressure SensorSection Figure 18 Lifting the Sensor Out of the Water 4.3.2Submerged Pressure Sensor Programming4.3.3Submerged Pressure Sensor Calibration SectionVertical Orientation Only SectionHorizontal Orientation Only Page Rain Gauge section 5.1 on Optional Device Installation5.1 Rain Gauge SectionTable 8 pH Connector Pin Assignments J3 5.2 pH Probe5.1.1 Rain Gauge Programming 5.2.1 pH Probe Connection5.2.3pH Probe Calibration 5.2.2pH Probe ProgrammingSection 5.3.1 ORP Probe Connection 5.3 ORP ProbeSection Section 5.3.2ORP Probe Programming5.3.3ORP Probe Calibration Table 9 ORP Connector Pin Assignments J3Section 5.4Dissolved Oxygen Probe5.4.1 Dissolved Oxygen Probe Connection 5.4.2 Dissolved Oxygen Probe ProgrammingCalibrating the D.O. Temperature 5.4.4Dissolved Oxygen Probe CalibrationSection 5.5.2Conductivity Probe Programming 5.5.3Conductivity Temperature ProgrammingSection 5.5 Conductivity Probe 5.5.1 Conductivity Probe ConnectionSection 5.5.4Conductivity Probe CalibrationSection Calibrating the Conductivity Temperature6.1.2 RS232 Programming Section 6 Communication Setup6.1 RS232 Cable 6.1.1 RS232 Connection6.2.2 Modem Programming Modem6.2.1 Modem ConnectionSite Selection Installation and SetupSection 6.2.2.1 Cellular Communication Option6.2.2.2Reliable Communications Section6.2.2.3 Cellular Modem Scheduling 6.2.2.4 Cellular Modem Scheduling Basis SectionCellular Modem Triggered Duration Section6.2.2.5 Cellular Modem Triggering 6.2.2.6 Pager Option6.2.2.7 Reporting Devices SectionSection Table 15 Pager Alarm Codes6.3.2 4–20mA Programming 4–20mA Option6.3.1 4–20mA ConnectionSection 6.3.3 4–20mA CalibrationSection 6.4 Alarm RelaysFigure 24 Calibration with the Meter in the Loop Figure 26 Relay Pin Connections 6.4.1 Alarm Relays ConnectionTable 17 Relay Connector J17 SectionAlarm Actions 6.4.2 Alarm Relays ProgrammingLow Main Battery Memory BatteryLevel Set Point Alarm ConditionsCabinet Temperature refrigerated samplers SectionSection Analog Inputs6.5.1 Analog Inputs ConnectionSection 6.5.2 Analog Inputs ProgrammingPELIGRO MAINTENANCEDANGER DANGERPage 7.1.1 Cleaning the Sampler Cabinet Maintenance7.1 Cleaning the Sampler 7.2 Pump Tubing MaintenanceFigure 29 Pump Tube Loading 7.3 Upgrades, Repairs, General Maintenance7.2.2Replacing Pump Tubing SectionSection 7.4 Internal Maintenance ItemsElectrostatic Discharge ESD Considerations 7.5Removing and Opening the ControllerSection 7.6 Re-installingthe Bottom Panel8 16 7 2 3 12 4 13 6Figure Section 7.7 Circuit Board IdentificationCPU BOARD Table 20 CPU Board ConnectorsUtility Board UTILITY BOARDSection Figure7.10.1 Replacing the Desiccant Section 7.8 Replacing the Fuse7.9 Motor/Gear Box 7.10 Internal Desiccant ModuleMemory Battery Section 7.11 Memory BatteryPage Option Menu Appendix AQuick Start Guides MAIN MENUSEE ADVANCED SAMPLING FLOW CHART Appendix ANotes 8990apdx_quickstart.fm SetupAppendix A Main MenuAppendix A Pick One Advanced Options AlarmsAppendix A PickAppendix A 8990apdx_quickstart.fm Appendix APage Displaying Data Appendix B Programming FeaturesReview All Items Running a ProgramTabular or Graph Format Appendix B Selecting the ChannelTable 22 Display Data Functions and Descriptions Table 23 Graphing Functions and Descriptions Appendix B Graph ManipulationGraphic Display Averaging Sample HistorySensor Disabled Appendix B Options Menu FeaturesSetting the Time and Date Volume CalibrationCalibration Procedure—SensorDisabled Appendix BSensor Enabled Table 24 Calibration VolumesCalibration Procedure—SensorEnabled Timed Rinse Calibration Procedure—SensorDisabledAppendix B Extended Power Mode Appendix B Data LogLogging Intervals Power Save Mode• Slate Modem Dynamic Memory AllocationPower Save Mode Appendix BAppendix B Data Logging ConfigurationDiagnostics Memory Mode ConfigurationLogged events include Appendix BDistributor Test Event ListLCD Test SIGNAL STRENGTH: 90‰ VELOCITY: 7.00 fps RETURNProgramming Features Appendix Bac Power Appendix B Load ProgramScreen Saver Mode Battery PowerLiters Appendix B Flow TotalizerModify Setup Acre-feetAppendix B Reset TotalizerView Totals Error Messages Appendix C Troubleshooting and Error MessagesTroubleshooting and Error Messages Appendix CPage Appendix C Trouble Alarm Conditions, Causes, and SolutionsSolution Troubleshooting and Error MessagesTroubleshooting and Error Messages Downlook Ultrasonic Sensor TroubleshootingProblems SolutionsAppendix C pH Troubleshooting Appendix C ProblemSolution Troubleshooting and Error MessagesExample Appendix D How to Calculate Pulses/CountsExample Example Appendix DExample Appendix DExample Calculate QExample Appendix D2.Calculate t ExampleQuantity Appendix E Exploded DrawingsItem DescriptionDescription Appendix EDescription Cat. NoAppendix E Appendix E Appendix E Sigma 900 Composite Refrigerator AssemblyAppendix E Appendix E Sigma 900 Discrete Refrigerator AssemblyAppendix E Transition Tray Assembly 110 cm 43.5” ref Appendix E8990apdx_exploded.fm Page Page GENERAL INFORMATIONGENERAL INFORMATION Page Parts and Accessories Page Parts and AccessoriesNote: For cleaner Area x Velocity Measurement SensorsSensor Mounting Hardware Parts and AccessoriesInstalled Integral Depth Only Flow Meter Option Depth Measurement SensorsOption Parts and AccessoriesUltrasonic Sensor Mounting Hardware PageTechnical Support Repair ServiceContact Information for U.S.A. and Outside Europe Ordering Information for the U.S.AContact Information for Europe Limitations WarrantyLimitation of Remedies Numerics IndexIndex Index