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Hach 900 MAX manual Upgrades, Repairs, General Maintenance, 7.2.2Replacing Pump Tubing, Section

Models: 900 MAX

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Figure 29 Pump Tube Loading

Section 7

Note: To extend the life of the tubing, rotate the pump tube 90 degrees in the pump housing after approximately 2/3 of the life has been realized (once the tube life has been determined through use).

Experience at a particular site will be your best indicator of tubing life. Visually inspect the tubing and rollers on a regular basis after initial installation to get a feel for what maintenance your site will require. Be sure to replace the pump tubing before it splits to prolong the life of the sampler and keep the work area free of contamination from the sample liquid.

The proper length of silicone tubing must be used in the pump body. An improper length can reduce the life of the tubing and pump rollers. Refer to Figure 29 for the correct length.

Figure 29 Pump Tube Loading

11 5/8 in.

(Tubing in Pump)

To Intake Tubing Connector

5 3/4 in. to Sample Fitting

7.2.2Replacing Pump Tubing

1.To replace the pump tube, remove the four screws on the pump cover.

2.Remove the front cover of the pump housing.

3.Remove the existing tubing. Locate the black dot on the new tubing. The end of the tube that extends farthest beyond the black dot attaches to the stainless steel tubing connector.

4.Install the pump tube in the pump housing until the black dots are visible just outside the pump body.

5.After inserting the new pump tube, reinstall the front cover and secure it with the four screws until finger tight.

7.3 Upgrades, Repairs, General Maintenance

Only a qualified technician should service the sampler. For example, steps that require knowledge of CMOS electrostatic discharge precautions and advanced electronics training and should only be performed by a qualified technician. If you need assistance in performing any of the following service steps, contact the manufacturer.

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Upgrades, Repairs, General Maintenance	8990mnt.fm

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Hach 900 MAX manual Upgrades, Repairs, General Maintenance, 7.2.2Replacing Pump Tubing, Section, Pump Tube Loading

Contents

Catalog Number 07/03 4edSigma 900 MAX Refrigerated Sampler INSTRUMENT MANUALPage Catalog Number Sigma 900 MAX Refrigerated SamplerINSTRUMENT MANUAL Page Table of Contents Table of ContentsPage Table of Contents Table of Contents Table of Contents Trouble Alarm Conditions, Causes, and SolutionsPrecautionary Labels Safety PrecautionsUse of Hazard Information Confined Space Entry Safety Precautions Hazardous LocationsDefinition of Confined Space Specifications Specifications Factory Installed Options SpecificationsSpecifications Rain Gauge InputSpecifications Submerged Area/Velocity ProbePage Section Introduction1.1 Controller Cover 1.2 Front PanelSection 1.2.1 Keypad Description1.2.2 Liquid Crystal Display Power ON/OFF Key1.2.3 Internal Humidity Indicator Figure 2 Humidity IndicatorSection Status BarSection 1.3 Interface Connectors 1.3.1 Receptacle CapsSection 1.4 Principle of Operation 1.4.1 Liquid SensingAccurate, Repeatable Sample Volumes FigureIntake Tube Pre-Rinse SectionSample Retry INSTALLATION DANGERPELIGRO GEFAHRPage Installation Section2.2 Selecting the Installation Site Figure 4 Setting Up the InstrumentSection 2.3 Installing the Pump Tube in the Sensor BodyFigure 5 Pump Tube Loading 2.3.1 Attaching the Intake Line Figure 7 3/8” Vinyl Tubing ConnectorSection 2.3.1.1 Attaching the Vinyl Tubing2.3.2 Setting Up the Intake Line and Strainer 2.4 Choosing Bottle and Retainer ConfigurationsSection 2.5 Setting Up the Bottles 2.5.1 One-BottleSampling2.5.2 Two- and Four-bottleSampling Figure 9 Bottle Configurations2.5.3 Eight-, 12-,or 24-bottleSampling SectionFigure 10 Two-bottleLocations Figure 11 Four-bottleLocationsFigure 12 Eight-, 12-,or 24-bottleConfiguration Section2.6.1Distributor Arm Alignment Figure 14 Distributor InstallationSection Figure 13 Distributor Tubing in ArmFigure 15 Full Bottle Shut-offInstallation 2.8 Power ConnectionsSection 2.9Auxiliary Receptacle Pin Identification Section2.9.1 Splitter Interface SectionFigure 16 Splitter Interface 8990hrd.fmPage OPERATION DANGERDANGER PELIGROPage Section 3 Basic Programming Setup 3.1 Initial Power-Upof Sampler3.2 Basic Programming Setup Program DelayStep 1 - Bottles SectionStep 3 - Program Lock Step 2 - Intake TubingSection Step 4 - Program Delay Step 5 - Sample CollectionSection Timed-ProportionalSampling IntervalsSection d.Press ACCEPT to continue to Sample DistributionSection Table 2 Sampler Pacing Flow UnitsSection ExampleSection CHANGEStep 6 - Sample Distribution SectionSingle Bottle Multiple Bottle SetsSection If NO is selectedStep 7 - Liquid Sensor SectionEnabling the Liquid Sensor Disabling the Liquid Sensor/Timed CalibrationStep 9 - Intake Rinses Section Step 8 - Sample VolumeStep 10 - Sample Retries Section Step 11 - Site ID 3.3 Advanced Sampling11-D. If NO, the basic setup program is complete Variable VolumesSection Step 12 - Program Complete Output Step 13 - Setpoint SamplingSection HIGHTable 3 Sampling Triggers and Settings Step 14 - Special OutputSection Section Step 15 - Start/Stop TimesBottle Number Step 16 - Storm Water SectionTable 4 Start Condition Requirements SectionFirst Flush Bottles Section ACCEPTStep 17 - Timed Bottle Sets SectionStep 18 - Upset Sample SectionSection ACCEPTStep 20 - Variable Volume Section Step 19 - Variable IntervalsVARIABLE VOLUME SELECT RETURNSensor Setup 4.1 Downlook Ultrasonic Sensor4.1.1 Downlook Ultrasonic Sensor Connection 4.1.2 Downlook Ultrasonic Sensor ProgrammingSection 4.1.3.3Setting the Invisible Range4.1.3.2 Sensor Height 4.2Submerged Area/Velocity Sensor 4.2.1 Submerged Area/Velocity Sensor Connection4.2.2Submerged Area/Velocity Sensor Programming SectionSection •The sensor is first used4.3.1 Submerged Pressure Sensor Connection 4.3 Submerged Pressure SensorSection 4.3.2Submerged Pressure Sensor Programming 4.3.3Submerged Pressure Sensor CalibrationSection Figure 18 Lifting the Sensor Out of the WaterVertical Orientation Only SectionHorizontal Orientation Only Page Optional Device Installation 5.1 Rain GaugeSection Rain Gauge section 5.1 on5.2 pH Probe 5.1.1 Rain Gauge Programming5.2.1 pH Probe Connection Table 8 pH Connector Pin Assignments J35.2.3pH Probe Calibration 5.2.2pH Probe ProgrammingSection 5.3.1 ORP Probe Connection 5.3 ORP ProbeSection 5.3.2ORP Probe Programming 5.3.3ORP Probe CalibrationTable 9 ORP Connector Pin Assignments J3 Section5.4Dissolved Oxygen Probe 5.4.1 Dissolved Oxygen Probe Connection5.4.2 Dissolved Oxygen Probe Programming SectionCalibrating the D.O. Temperature 5.4.4Dissolved Oxygen Probe CalibrationSection 5.5.3Conductivity Temperature Programming Section 5.5 Conductivity Probe5.5.1 Conductivity Probe Connection 5.5.2Conductivity Probe Programming5.5.4Conductivity Probe Calibration SectionCalibrating the Conductivity Temperature SectionSection 6 Communication Setup 6.1 RS232 Cable6.1.1 RS232 Connection 6.1.2 RS232 ProgrammingModem 6.2.1Modem Connection 6.2.2 Modem ProgrammingInstallation and Setup Section6.2.2.1 Cellular Communication Option Site Selection6.2.2.2Reliable Communications Section6.2.2.3 Cellular Modem Scheduling Section 6.2.2.4 Cellular Modem Scheduling BasisSection 6.2.2.5 Cellular Modem Triggering6.2.2.6 Pager Option Cellular Modem Triggered DurationSection 6.2.2.7 Reporting DevicesTable 15 Pager Alarm Codes Section4–20mA Option 6.3.14–20mA Connection 6.3.2 4–20mA Programming6.3.3 4–20mA Calibration SectionSection 6.4 Alarm RelaysFigure 24 Calibration with the Meter in the Loop 6.4.1 Alarm Relays Connection Table 17 Relay Connector J17Section Figure 26 Relay Pin Connections6.4.2 Alarm Relays Programming Low Main BatteryMemory Battery Alarm ActionsSet Point Alarm Conditions Cabinet Temperature refrigerated samplersSection LevelAnalog Inputs 6.5.1Analog Inputs Connection Section6.5.2 Analog Inputs Programming SectionMAINTENANCE DANGERDANGER PELIGROPage Maintenance 7.1 Cleaning the Sampler7.2 Pump Tubing Maintenance 7.1.1 Cleaning the Sampler Cabinet7.3 Upgrades, Repairs, General Maintenance 7.2.2Replacing Pump TubingSection Figure 29 Pump Tube Loading7.4 Internal Maintenance Items Electrostatic Discharge ESD Considerations7.5Removing and Opening the Controller Section7.6 Re-installingthe Bottom Panel 8 16 72 3 12 4 13 6 SectionSection 7.7 Circuit Board Identification CPU BOARDTable 20 CPU Board Connectors FigureUTILITY BOARD SectionFigure Utility BoardSection 7.8 Replacing the Fuse 7.9 Motor/Gear Box7.10 Internal Desiccant Module 7.10.1 Replacing the DesiccantMemory Battery Section 7.11 Memory BatteryPage Appendix A Quick Start GuidesMAIN MENU Option MenuSEE ADVANCED SAMPLING FLOW CHART Appendix ANotes Setup Appendix AMain Menu 8990apdx_quickstart.fmAppendix A Advanced Options Alarms Appendix APick Pick OneAppendix A Appendix A 8990apdx_quickstart.fmPage Appendix B Programming Features Review All ItemsRunning a Program Displaying DataTabular or Graph Format Appendix B Selecting the ChannelTable 22 Display Data Functions and Descriptions Appendix B Graph Manipulation Graphic Display AveragingSample History Table 23 Graphing Functions and DescriptionsAppendix B Options Menu Features Setting the Time and DateVolume Calibration Sensor DisabledAppendix B Sensor EnabledTable 24 Calibration Volumes Calibration Procedure—SensorDisabledCalibration Procedure—SensorEnabled Timed Rinse Calibration Procedure—SensorDisabledAppendix B Appendix B Data Log Logging IntervalsPower Save Mode Extended Power ModeDynamic Memory Allocation Power Save ModeAppendix B • Slate ModemData Logging Configuration DiagnosticsMemory Mode Configuration Appendix BAppendix B Distributor TestEvent List Logged events includeSIGNAL STRENGTH: 90‰ VELOCITY: 7.00 fps RETURN Programming FeaturesAppendix B LCD TestAppendix B Load Program Screen Saver ModeBattery Power ac PowerAppendix B Flow Totalizer Modify SetupAcre-feet LitersAppendix B Reset TotalizerView Totals Appendix C Troubleshooting and Error Messages Error MessagesTroubleshooting and Error Messages Appendix CPage Trouble Alarm Conditions, Causes, and Solutions SolutionTroubleshooting and Error Messages Appendix CDownlook Ultrasonic Sensor Troubleshooting ProblemsSolutions Troubleshooting and Error MessagesAppendix C pH Troubleshooting Problem SolutionTroubleshooting and Error Messages Appendix CExample Appendix D How to Calculate Pulses/CountsExample Appendix D ExampleAppendix D ExampleCalculate Q ExampleAppendix D 2.Calculate tExample ExampleAppendix E Exploded Drawings ItemDescription QuantityAppendix E DescriptionCat. No DescriptionAppendix E Appendix E Sigma 900 Composite Refrigerator Assembly Appendix EAppendix E Sigma 900 Discrete Refrigerator Assembly Appendix EAppendix E Transition Tray Assembly 110 cm 43.5” ref Appendix E8990apdx_exploded.fm Page Page GENERAL INFORMATIONGENERAL INFORMATION Page Parts and Accessories Parts and Accessories Note: For cleanerArea x Velocity Measurement Sensors PageParts and Accessories Installed Integral Depth Only Flow Meter OptionDepth Measurement Sensors Sensor Mounting HardwareParts and Accessories Ultrasonic Sensor Mounting HardwarePage OptionRepair Service Contact Information for U.S.A. and Outside EuropeOrdering Information for the U.S.A Technical SupportContact Information for Europe Limitations WarrantyLimitation of Remedies Index NumericsIndex Index