Hach 3650 manual Storing Measurements In the Instrument, Automatic Data Acquisition

Page 22

16 of 50

Operating Information - 3650 Portable O2 Analyzer

 

 

2.3 Storing Measurements In the Instrument

The analyzer will store up to 500 gas measurement values, labeled by numbers 0 through 499, along with the current date and time of each measurement. You have the choice of acquiring this information manually or automatically, as described below.

Before storing measurements, you should verify the date and time settings of the instrument's internal clock, as described in “Clock Settings” on page 39.

2.3.1 Automatic Data Acquisition

Note:

When the instrument is used to automatically store measurement data, all buttons except the POWER key are disabled. If enough time elapses to store all 500 values, the instrument will return to normal measurement mode and the buttons re-enabled.

Before starting automatic measurement storage, first select the sampling rate desired using the Sampling Rate menu of the WinLog97 program (see “Automatic Data Acquisition - Setting Sampling Intervals” on page 26).

1) Switch the instrument OFF (by pressing the POWER key)

2) Then hold down the STO button while switching the instrument back ON. The LCD displays the message Sto for about one second

3) Normal gas concentration measurements are displayed for about two minutes

4) After two minutes the instrument displays the sample number (starting at 000), then the gas concentration measurement value followed by [---]to indicate the measurement is being stored.

5) This storage sequence repeats automatically, at the rate specified by the WinLog97 program Sampling Rate menu. Values are stored sequentially in sample numbers 000 through 499.

Note:

If you have not cleared previously stored values, the storage sequence automatically overwrites the older values, as they are stored.

To end automatic storage, switch the instrument OFF (by pressing the POWER key) while it is in normal measurement mode and not while it is in the process of automatically storing data.

ORBISPHERE

Operator Manual

Image 22
Contents Operator Manual Page Product Recycling Information Orbisphere Product Disposal Following only applies to European customersRestriction of Hazardous Substances MarkingTable of Contents Calibrations Accessories and Attachments Maintenance and TroubleshootingSpecifications Part ListsAbout this Manual Safety Conventions Safety PrecautionsManual Overview Revision HistorySafety Recommendations Service and RepairsPrecautionary Labels AcknowledgementsOrbisphere Installation Sensor Installation Flow Chamber InstallationSample Tube Adapter optional WinLog97 PC Program InstallationExternal Power optional ConnectionsInstrument PC Connection Batteries Installation Completion Check ListInstrument Clock Setting Electrochemical SensorStorage When not Used Flow ChamberOperating Information Operating ControlsOperating Information 3650 Portable O2 Analyzer Taking Measurements Preconditioning SensorStoring Measurements In the Instrument Automatic Data AcquisitionManual Data Acquisition Viewing Stored Measurements Storing and Accessing Measurements From the PCDownloading Stored Values Altering the Sampling Point Descriptions Copying ValuesPrinting Values Saving ValuesClearing Stored Values Monitoring Measurements In Real-Time Timebase Updating Rate Maximum Samples 10 divisionsOrbisphere Options Setup Main Menu BasicsWinlog97 Export Menu Reviewing Instrument Configuration O2 Analyzer PC ConnectionAutomatic Data Acquisition Setting Sampling Intervals Configuring the InstrumentMembrane Selection Selecting Type of Calibration Select from the PCSensor Calibration Range Checking Locking Out the Instrument’s CAL ButtonEntering a Span Gas Value Dual Use model 3650/113 only Change from the PCOrbisphere Calibrations Pressure CalibrationSensor Calibration Calibration In a Span GasCalibration In Line Calibration Range Checking Calibration In AirAccessories and Attachments Accessories and Attachments 3650 Portable O2 Analyzer Instrument Batteries Maintenance and TroubleshootingMaintenance SensorSerial Test TroubleshootingKeyboard Test Clock Settings Display TestAnalog Voltages View Measurements ViewGeneral Technical Data SpecificationsSystem Specifications Instrument Display OptionsTheory of Operation Part Lists AccessoriesInstrument Spare Parts Common Units Appendix a GlossaryTerms and Definitions Glossary 3650 Portable O2 Analyzer Annex Tables and IllustrationsAnnex 3650 Portable O2 Analyzer User Notes