Hach 3650 manual Analog Voltages View, Measurements View

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40 of 50	Maintenance and Troubleshooting - 3650 Portable O2 Analyzer

6.2.5 Analog Voltages View

The Troubleshooting, Analog Voltage View gives a real-time look at voltages used by the system to transmit information about sensor current, temperature and pressure. This is useful when trying to identify an instrument problem with a Hach Ultra service representative either on-site or over the phone.

When performing this test, if the system is over-range, you may receive a message that states, for example, The current input is saturated.

Similar messages will also appear, to warn when temperature and pressure limits are exceeded.

Fig 6-5: Analog Input Test

The voltage limits for normal operation are:

•Current channel: -1.5 V to +1.5 V

•Temperature channel: +10 mV to +4 V

•Pressure channel: -100 mV to +100 mV

The Range window on the right side of the Current channel voltage indicates one of the four instrument ranges: 0 (less sensitive) to 3 (most sensitive).

6.2.6 Measurements View

The Troubleshooting, Measurements View confirms, on your PC monitor, what your analyzer should be displaying on the LCD for gas concentration and sample temperature.

Choose Cancel to exit from this display.

Fig 6-6: Measurements View

ORBISPHERE

Operator Manual

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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