Hach 900 manual mA Interface and Pulse Duration Input, Splitter Interface

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Section 3

Figure 6 4–20 mA Interface and Pulse Duration Input

(+)

(-)

To Auxillary Connector

For details on programming the sampler for flow proportional operation, refer to SECTION.

Splitter Interface

This splitter interface (Cat. No. 939) can be used if access to more than one of the Auxiliary Receptacle functions is required simultaneously. Connecting the interface to the 6-pin connector on the sampler provides three additional connectors for use. Two or more interfaces may be connected in series to allow for as many connections as desired.

Figure 7 Splitter Interface

 

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8544install.fm

Auxiliary Connection

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Contents Sigma 900 Composite Sampler Page Table of Contents Table of Contents Sample Volume Repeatability Controller DimensionsPump/Controller Housing Sample VolumePage General Information Interface ConnectorsInstrument Description Receptacle CapsKeypad and Display Humidity IndicatorSection Front PanelSafety Information Safety InformationUse of Hazard Information Precautionary LabelsHazardous Locations Peligro Confined Space EntryDefinition of Confined Space Installation Selecting the Installation SiteUnpacking the Instrument Teflon-Lined Polyethylene Intake Line Mounting the SamplerAttaching the Intake Line Vinyl Intake TubingChoosing Bottles Setting Up the Intake Line and StrainerInstalling the Full Bottle Shut-Off Setting Up the Intake Line and StrainerPower Connections Power ConnectionsAuxiliary Pin Assignments 12 V dc Connector Pin Assignments12 V dc Auxiliary ConnectionMA 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 Instrument1035 AM 24OCT00 Section Setting the Time and DateBottle Setup Mode Setting the Time and DateSection 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 ControlFlow Proportional Operation How to Calculate Pulses/CountsSection Flow Proportional Operation ExampleTherefore, 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 Motor/Gear Box Internal Case Humidity IndicatorMemory Battery 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 Charging MaintenanceTemperature Lead-Acid Gel Cell BatteriesAppendix B Lead-Acid Battery Storage RecommendationsNickel-Cadmium Battery Storage Recommendations Storage Temperature Maximum Recommended Storage TimeItem 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