Hach 900 manual Data Logging, Manual Mode, Manually Operating the Sample Pump

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Section 4

Item

Message

Description of Message

Number

 

 

 

 

 

13c

TRY AGAIN?

If STOP PUMP was pressed before or after the desired rinse time, press YES to initiate

another rinse cycle. Press NO to view item 16.

 

 

 

 

 

14

ENTER ID#

Enter an optional identification number if desired.

 

 

 

 

 

This message indicates that all programming steps have been completed. Press START

 

SETUP COMPLETE,

PROGRAM to begin. The display will read "Program Running". To review the program

15

operating status, press DISPLAY FEEDBACK.

READY TO START

 

When you press START PROGRAM, all recorded data are erased from memory. Always

 

 

 

 

download recorded data before pressing START PROGRAM.

 

 

 

4.6 Data Logging

The sampler records the time and date that each sample was collected, up to 400 samples. It also records the time and date of up to 24 missed samples.

1. To access information, the sampler must be in the "Program Halted" or "Program Complete" standby state.

2. Press TIME/READ for two seconds. The display will read "Samples Taken".

3. To display the time/date for each sample, press YES. To advance to the next sample time/date, press YES again–and so forth, until all are given.

4. To exit this routine, press NO. The time and date of any missed samples are displayed after collected samples.

The sampler memory incorporates the “wrap around” method of data storage. That is, when the memory becomes full, the oldest stored data (sample number, time/date) are dropped as new data are received. The data logger retains the 400 most recent times/dates for the collected samples.

4.7 Manual Mode

4.7.1Manually Operating the Sample Pump

1.To manually operate the pump, place the sampler in standby state. The sampler is in standby state when the display reads "Ready to Start", "Program Halted", or "Program Complete".

2.To operate the pump, press either the PUMP or PURGE key. This will cause "Manual Mode - Pump/Purge/Clear" to appear on the display. Pressing the PUMP key causes the pump to run in the forward (sample) direction as long as the key is held. Pressing the PURGE key causes the pump to run in the reverse (purge) direction.

3.To run the pump continuously in either direction without having to hold down the PUMP or PURGE keys, press the * key. This will cause "Lock-Pump/Purge" to appear on the display. Then press either PUMP or PURGE.

4.To stop the pump, press STOP PUMP or turn the sampler off with the OFF key. Pressing STOP PUMP returns the display to "Pump/Purge/Clear".

 

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8544operations.fm

Data Logging

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Contents Sigma 900 Composite Sampler Page Table of Contents Table of Contents Pump/Controller Housing Controller DimensionsSample Volume Sample Volume RepeatabilityPage Instrument Description Interface ConnectorsReceptacle Caps General InformationSection Humidity IndicatorFront Panel Keypad and DisplaySafety Information Safety InformationUse of Hazard Information Precautionary LabelsHazardous Locations Peligro Confined Space EntryDefinition of Confined Space Installation Selecting the Installation SiteUnpacking the Instrument Attaching the Intake Line Mounting the SamplerVinyl Intake Tubing Teflon-Lined Polyethylene Intake LineInstalling the Full Bottle Shut-Off Setting Up the Intake Line and StrainerSetting Up the Intake Line and Strainer Choosing BottlesPower Connections Power Connections12 V dc 12 V dc Connector Pin AssignmentsAuxiliary Connection Auxiliary Pin AssignmentsMA Input Contact ClosuresAuxiliary Connection Splitter Interface 20 mA Interface and Pulse Duration InputPage Keypad and Key Functions Tips and Techniques for Programming the Instrument Tips and Techniques for Programming the InstrumentBottle Setup Mode Section Setting the Time and DateSetting the Time and Date 1035 AM 24OCT00Section Explanations of Program Messages Data Logging Manual ModeManually Operating the Sample Pump Mode Measurements Triggered by Liquid Levels or FlowMeasurements Triggered by Liquid Levels or Flow Other Displayed Messages Section Programming the Sampler for Level ControlSection Flow Proportional Operation How to Calculate Pulses/CountsExample Flow Proportional OperationTherefore, the value for Intv = Cnts is Calculate t You want to collect 32 samples over an 8-hour period Page Removing and Opening the Controller Cleaning the SamplerRe-installing the Bottom Panel Re-installing the Bottom PanelCircuit Board Identification Section Internal Desiccant ModuleInternal Desiccant Module Memory Battery Internal Case Humidity IndicatorMotor/Gear Box Motor/Gear BoxOrdering Information for the U.S.A Repair ServiceContact Information for Europe Limitations Limited WarrantyLimitation of Remedies Page Description Part Number Parts and AccessoriesTray/Positioner Page Program Flow Chart Page Temperature MaintenanceLead-Acid Gel Cell Batteries ChargingNickel-Cadmium Battery Storage Recommendations Lead-Acid Battery Storage RecommendationsStorage Temperature Maximum Recommended Storage Time Appendix BItem Number Description Exploded View 1Exploded View Drawings Appendix C Exploded View 2 Appendix C Exploded View 3 Part Description Appendix C Exploded View 4Part Appendix C Exploded View 5 Item Number Description Part Number Appendix C Exploded View 6