Manuals / Hach / Household Appliance / Water Heater

Hach 900 MAX manual 8 16 7, 2 3 12 4 13 6, Re-installingthe Bottom Panel, Section

Models: 900 MAX

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7.6 Re-installing the Bottom Panel

Section 7

To open the controller:

1.Remove the 17 screws from around the perimeter of the controller back panel.

2.Carefully pull open the bottom panel and let the attached connectors swing out of the way.

3.If necessary for the repair being performed, unplug the appropriate connectors. Always note each connector location before unplugging anything. Re-installing a plug into the wrong connector can cause extensive damage.

Note: The front panel gasket has a light coating of grease to help ensure a watertight

seal. Do not contaminate the grease or gasket area with dirt or debris during servicing. Always replace the gasket if it is damaged or missing. Never reassemble the case without the gasket properly installed.

7.6 Re-installing the Bottom Panel

Note: Always follow the procedure below when re-installing the sampler bottom panel. Improper panel installation may result in damage to

the instrument.

1.Hand tighten each nut until it makes contact with the panel.

2.Tighten the nuts in sequence shown in Figure 30 to 5 in.-lb (0.56 N-m).

3.Repeat the tightening procedure in the same sequence to 10 in.-lb (1.13 N-m).

Figure 30 Tightening the Nuts on the Bottom Panel

1 10

9

17

8

16

7 15

2 11

3

12

4

13 5

6 14

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Re-installing the Bottom Panel	8990mnt.fm

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Hach 900 MAX manual 8 16 7, 2 3 12 4 13 6, Re-installingthe Bottom Panel, Section, Tightening the Nuts on the Bottom Panel

Contents

Sigma 900 MAX Refrigerated Sampler Catalog Number07/03 4ed INSTRUMENT MANUALPage Sigma 900 MAX Refrigerated Sampler Catalog NumberINSTRUMENT MANUAL Page Table of Contents Table of ContentsPage Table of Contents Table of Contents Table of Contents Trouble Alarm Conditions, Causes, and SolutionsSafety Precautions Precautionary LabelsUse of Hazard Information Safety Precautions Hazardous Locations Confined Space EntryDefinition of Confined Space Specifications Specifications Factory Installed Options SpecificationsSpecifications Rain Gauge InputSpecifications Submerged Area/Velocity ProbePage 1.1 Controller Cover SectionIntroduction 1.2 Front Panel1.2.2 Liquid Crystal Display Section1.2.1 Keypad Description Power ON/OFF KeySection 1.2.3 Internal Humidity IndicatorFigure 2 Humidity Indicator Status BarSection 1.3 Interface Connectors 1.3.1 Receptacle CapsAccurate, Repeatable Sample Volumes Section 1.4 Principle of Operation1.4.1 Liquid Sensing FigureSection Intake Tube Pre-RinseSample Retry PELIGRO INSTALLATIONDANGER GEFAHRPage 2.2 Selecting the Installation Site InstallationSection Figure 4 Setting Up the Instrument2.3 Installing the Pump Tube in the Sensor Body SectionFigure 5 Pump Tube Loading Section 2.3.1 Attaching the Intake LineFigure 7 3/8” Vinyl Tubing Connector 2.3.1.1 Attaching the Vinyl Tubing2.4 Choosing Bottle and Retainer Configurations 2.3.2 Setting Up the Intake Line and StrainerSection 2.5.2 Two- and Four-bottleSampling 2.5 Setting Up the Bottles2.5.1 One-BottleSampling Figure 9 Bottle ConfigurationsFigure 10 Two-bottleLocations 2.5.3 Eight-, 12-,or 24-bottleSamplingSection Figure 11 Four-bottleLocationsFigure 12 Eight-, 12-,or 24-bottleConfiguration SectionSection 2.6.1Distributor Arm AlignmentFigure 14 Distributor Installation Figure 13 Distributor Tubing in Arm2.8 Power Connections Figure 15 Full Bottle Shut-offInstallationSection 2.9Auxiliary Receptacle Pin Identification SectionFigure 16 Splitter Interface 2.9.1 Splitter InterfaceSection 8990hrd.fmPage DANGER OPERATIONDANGER PELIGROPage 3.2 Basic Programming Setup Section 3 Basic Programming Setup3.1 Initial Power-Upof Sampler Program DelayStep 1 - Bottles SectionStep 2 - Intake Tubing Step 3 - Program LockSection Section Step 4 - Program DelayStep 5 - Sample Collection Timed-ProportionalSampling IntervalsSection d.Press ACCEPT to continue to Sample DistributionSection Table 2 Sampler Pacing Flow UnitsSection ExampleSection CHANGESingle Bottle Step 6 - Sample DistributionSection Multiple Bottle SetsSection If NO is selectedEnabling the Liquid Sensor Step 7 - Liquid SensorSection Disabling the Liquid Sensor/Timed CalibrationSection Step 8 - Sample Volume Step 9 - Intake RinsesStep 10 - Sample Retries 11-D. If NO, the basic setup program is complete Section Step 11 - Site ID3.3 Advanced Sampling Variable VolumesSection Step 12 - Program Complete Output Step 13 - Setpoint SamplingSection HIGHStep 14 - Special Output Table 3 Sampling Triggers and SettingsSection Step 15 - Start/Stop Times SectionBottle Number Step 16 - Storm Water SectionSection Table 4 Start Condition RequirementsFirst Flush Bottles Section ACCEPTStep 17 - Timed Bottle Sets SectionStep 18 - Upset Sample SectionSection ACCEPTVARIABLE VOLUME Step 20 - Variable VolumeSection Step 19 - Variable Intervals SELECT RETURN4.1.1 Downlook Ultrasonic Sensor Connection Sensor Setup4.1 Downlook Ultrasonic Sensor 4.1.2 Downlook Ultrasonic Sensor Programming4.1.3.3Setting the Invisible Range Section4.1.3.2 Sensor Height 4.2.2Submerged Area/Velocity Sensor Programming 4.2Submerged Area/Velocity Sensor4.2.1 Submerged Area/Velocity Sensor Connection SectionSection •The sensor is first used4.3 Submerged Pressure Sensor 4.3.1 Submerged Pressure Sensor ConnectionSection Section 4.3.2Submerged Pressure Sensor Programming4.3.3Submerged Pressure Sensor Calibration Figure 18 Lifting the Sensor Out of the WaterSection Vertical Orientation OnlyHorizontal Orientation Only Page Section Optional Device Installation5.1 Rain Gauge Rain Gauge section 5.1 on5.2.1 pH Probe Connection 5.2 pH Probe5.1.1 Rain Gauge Programming Table 8 pH Connector Pin Assignments J35.2.2pH Probe Programming 5.2.3pH Probe CalibrationSection 5.3 ORP Probe 5.3.1 ORP Probe ConnectionSection Table 9 ORP Connector Pin Assignments J3 5.3.2ORP Probe Programming5.3.3ORP Probe Calibration Section5.4.2 Dissolved Oxygen Probe Programming 5.4Dissolved Oxygen Probe5.4.1 Dissolved Oxygen Probe Connection Section5.4.4Dissolved Oxygen Probe Calibration Calibrating the D.O. TemperatureSection 5.5.1 Conductivity Probe Connection 5.5.3Conductivity Temperature ProgrammingSection 5.5 Conductivity Probe 5.5.2Conductivity Probe Programming5.5.4Conductivity Probe Calibration SectionCalibrating the Conductivity Temperature Section6.1.1 RS232 Connection Section 6 Communication Setup6.1 RS232 Cable 6.1.2 RS232 ProgrammingModem Connection Modem6.2.1 6.2.2 Modem Programming6.2.2.1 Cellular Communication Option Installation and SetupSection Site SelectionSection 6.2.2.2Reliable Communications6.2.2.3 Cellular Modem Scheduling Section 6.2.2.4 Cellular Modem Scheduling Basis6.2.2.6 Pager Option Section6.2.2.5 Cellular Modem Triggering Cellular Modem Triggered DurationSection 6.2.2.7 Reporting DevicesTable 15 Pager Alarm Codes Section4–20mA Connection 4–20mA Option6.3.1 6.3.2 4–20mA Programming6.3.3 4–20mA Calibration Section6.4 Alarm Relays SectionFigure 24 Calibration with the Meter in the Loop Section 6.4.1 Alarm Relays ConnectionTable 17 Relay Connector J17 Figure 26 Relay Pin ConnectionsMemory Battery 6.4.2 Alarm Relays ProgrammingLow Main Battery Alarm ActionsSection Set Point Alarm ConditionsCabinet Temperature refrigerated samplers LevelAnalog Inputs Connection Analog Inputs6.5.1 Section6.5.2 Analog Inputs Programming SectionDANGER MAINTENANCEDANGER PELIGROPage 7.2 Pump Tubing Maintenance Maintenance7.1 Cleaning the Sampler 7.1.1 Cleaning the Sampler CabinetSection 7.3 Upgrades, Repairs, General Maintenance7.2.2Replacing Pump Tubing Figure 29 Pump Tube Loading7.5Removing and Opening the Controller 7.4 Internal Maintenance ItemsElectrostatic Discharge ESD Considerations Section2 3 12 4 13 6 7.6 Re-installingthe Bottom Panel8 16 7 SectionTable 20 CPU Board Connectors Section 7.7 Circuit Board IdentificationCPU BOARD FigureFigure UTILITY BOARDSection Utility Board7.10 Internal Desiccant Module Section 7.8 Replacing the Fuse7.9 Motor/Gear Box 7.10.1 Replacing the DesiccantSection 7.11 Memory Battery Memory BatteryPage MAIN MENU Appendix AQuick Start Guides Option MenuAppendix A SEE ADVANCED SAMPLING FLOW CHARTNotes Main Menu SetupAppendix A 8990apdx_quickstart.fmAppendix A Pick Advanced Options AlarmsAppendix A Pick OneAppendix A Appendix A 8990apdx_quickstart.fmPage Running a Program Appendix B Programming FeaturesReview All Items Displaying DataAppendix B Selecting the Channel Tabular or Graph FormatTable 22 Display Data Functions and Descriptions Sample History Appendix B Graph ManipulationGraphic Display Averaging Table 23 Graphing Functions and DescriptionsVolume Calibration Appendix B Options Menu FeaturesSetting the Time and Date Sensor DisabledTable 24 Calibration Volumes Appendix BSensor Enabled Calibration Procedure—SensorDisabledTimed Rinse Calibration Procedure—SensorDisabled Calibration Procedure—SensorEnabledAppendix B Power Save Mode Appendix B Data LogLogging Intervals Extended Power ModeAppendix B Dynamic Memory AllocationPower Save Mode • Slate ModemMemory Mode Configuration Data Logging ConfigurationDiagnostics Appendix BEvent List Appendix BDistributor Test Logged events includeAppendix B SIGNAL STRENGTH: 90‰ VELOCITY: 7.00 fps RETURNProgramming Features LCD TestBattery Power Appendix B Load ProgramScreen Saver Mode ac PowerAcre-feet Appendix B Flow TotalizerModify Setup LitersReset Totalizer Appendix BView Totals Appendix C Troubleshooting and Error Messages Error MessagesAppendix C Troubleshooting and Error MessagesPage Troubleshooting and Error Messages Trouble Alarm Conditions, Causes, and SolutionsSolution Appendix CSolutions Downlook Ultrasonic Sensor TroubleshootingProblems Troubleshooting and Error MessagesAppendix C pH Troubleshooting Troubleshooting and Error Messages ProblemSolution Appendix CAppendix D How to Calculate Pulses/Counts ExampleExample Appendix D ExampleCalculate Q Appendix DExample ExampleExample Appendix D2.Calculate t ExampleDescription Appendix E Exploded DrawingsItem QuantityCat. No Appendix EDescription DescriptionAppendix E Appendix E Sigma 900 Composite Refrigerator Assembly Appendix EAppendix E Sigma 900 Discrete Refrigerator Assembly Appendix EAppendix E Transition Tray Assembly Appendix E 110 cm 43.5” ref8990apdx_exploded.fm Page GENERAL INFORMATION PageGENERAL INFORMATION Page Parts and Accessories Area x Velocity Measurement Sensors Parts and AccessoriesNote: For cleaner PageDepth Measurement Sensors Parts and AccessoriesInstalled Integral Depth Only Flow Meter Option Sensor Mounting HardwarePage Parts and AccessoriesUltrasonic Sensor Mounting Hardware OptionOrdering Information for the U.S.A Repair ServiceContact Information for U.S.A. and Outside Europe Technical SupportContact Information for Europe Warranty LimitationsLimitation of Remedies Index NumericsIndex Index