Tips and Techniques for Programming the Instrument | Hach 900

Section 4

Figure 8

Front Panel

4.2Tips and Techniques for Programming the Instrument

•The instrument beeps each time a key is pressed.

•After the ON button is presses, the display will show one of the following messages: "Program Halted", "Program Running", "Program Complete", or "Ready to Start".

•The program status changes to Program Complete when sampling is complete and there are no samples to be taken or the optional full bottle shut-off is actuated.

•When the program is stopped (an no changes to the program settings were made while it was stopped), pressing the START PROGRAM key will prompt to resume the previously running program (an retain all logged data) or Start From Beginning (and clear all logged data).

•When programming the instrument, pressing the * key causes the display to back up to the previous field.

Page 22
Tips and Techniques for Programming the Instrument	8544operations.fm

Image 22

Hach 900 manual Tips and Techniques for Programming the Instrument

Contents

Sigma 900 Composite Sampler Page Table of Contents Table of Contents Sample Volume Controller DimensionsPump/Controller Housing Sample Volume RepeatabilityPage Receptacle Caps Interface ConnectorsInstrument Description General Information Front Panel Humidity IndicatorSection Keypad and Display Safety Information Safety Information Use of Hazard Information Precautionary LabelsHazardous Locations Confined Space Entry Peligro Definition of Confined Space Installation Selecting the Installation SiteUnpacking the Instrument Vinyl Intake Tubing Mounting the SamplerAttaching the Intake Line Teflon-Lined Polyethylene Intake Line Setting Up the Intake Line and Strainer Setting Up the Intake Line and StrainerInstalling the Full Bottle Shut-Off Choosing Bottles Power Connections Power Connections Auxiliary Connection 12 V dc Connector Pin Assignments12 V dc Auxiliary Pin Assignments MA Input Contact ClosuresAuxiliary Connection 20 mA Interface and Pulse Duration Input Splitter InterfacePage Keypad and Key Functions Tips and Techniques for Programming the Instrument Tips and Techniques for Programming the Instrument Setting the Time and Date Section Setting the Time and DateBottle Setup Mode 1035 AM 24OCT00 Section 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 Section Programming the Sampler for Level Control Other Displayed Messages Example How to Calculate Pulses/CountsSection Flow Proportional Operation Flow Proportional Operation Therefore, the value for Intv = Cnts is Calculate t You want to collect 32 samples over an 8-hour period Page Cleaning the Sampler Removing and Opening the Controller Re-installing the Bottom Panel Re-installing the Bottom Panel Circuit Board Identification Section Internal Desiccant ModuleInternal Desiccant Module Motor/Gear Box Internal Case Humidity IndicatorMemory Battery Motor/Gear Box Repair Service Ordering Information for the U.S.A Contact Information for Europe Limitations Limited WarrantyLimitation of Remedies Page Description Part Number Parts and AccessoriesTray/Positioner Page Program Flow Chart Page Lead-Acid Gel Cell Batteries MaintenanceTemperature Charging Storage Temperature Maximum Recommended Storage Time Lead-Acid Battery Storage RecommendationsNickel-Cadmium Battery Storage Recommendations Appendix B Item 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 Appendix C Exploded View 6 Item Number Description Part Number