Hach 3654 Portable H2/N2 Analyzer manual Analog Voltages View, Measurements View

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52 of 66	Maintenance and Troubleshooting - 3654 Portable H2/N2 Analyzer

6.5.5 Analog Voltages View

The Troubleshooting, Analog Voltage View gives a real-time look at voltages used by the system to transmit information about gas, 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.

The voltage limits for normal operation are:

•Gas channel: between +0.1 V and +4 V, depending on the gas being measured

•Temperature channel: +10 mV to +4 V

•Pressure channel: -100 mV to +100 mV

The POINT window on the right side of the gas channel voltage, is a parameter useful for troubleshooting by Hach Ultra support technicians. It cannot be set or updated locally.

6.5.6 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.

ORBISPHERE

Operator Manual

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Contents Operator Manual Page Product Recycling Information Orbisphere Product Disposal Following only applies to European customersBoard Analog Board Spacer External Connector Restriction of Hazardous SubstancesTable of Contents Maintenance and Troubleshooting Accessories and AttachmentsCalibrations Part Lists SpecificationsAppendix a Glossary Table of Contents 3654 Portable H2/N2 Analyzer About this Manual Safety ConventionsManual Overview Revision HistorySafety Recommendations Safety PrecautionsService and Repairs Precautionary Labels AcknowledgementsOrbisphere Installation What you have ReceivedSensor Installation WIN3654 PC Program InstallationAtmospheric Pressure Equilibrium Connections External Power Supply optionalPurge Gas Connection Instrument PC ConnectionPin RS232 Signal Use Flow Chamber Installation Installation Completion Check List Flow Chamber Dissolved Gas MeasurementsOrbisphere Operating Instructions Operating ControlsMeasurement Phase on Measurement Mode Select Gas Measurement PhaseTaking Measurements Storing Measurements In the Instrument Automatic Data AcquisitionManual Data Acquisition Viewing Stored Measurements Storing and Accessing Measurements From a ComputerDownloading Stored Values Copying Values Altering the Sampling Point DescriptionsSaving Values Printing Values Clearing Stored ValuesMonitoring Measurements In Real-Time Timebase Updating Rate Maximum Samples 10 divisionsAfter Use and Storage Options Setup Main Menu BasicsOptions Setup 3654 Portable H2/N2 Analyzer Gas Measurement Phase Reviewing Instrument ConfigurationConfiguring the Instrument Analyzer PC ConnectionMeasurement Units Automatic Data Acquisition Setting Sampling Intervals Membrane SelectionLocking Out the Instrument’s CAL Button Calibration MediumRolling Average Automatic Shutdown Orbisphere Calibrations Barometric Pressure Sensor CalibrationSensor Calibration Calibration Method Time Benefits Drawbacks ReferenceCalibration Setup Calibration In H2 or N2 at Atmospheric Pressure Calibration In H2 or N2 at Elevated Pressure Calibrating In a Liquid H2 or N2 Solution Accessories and Attachments Model 32311 Flow MeterModel 32939 External Power Supply Sensor Maintenance Maintenance and TroubleshootingPower Supply Maintenance ScheduleMounting Dual Membranes Membrane ReplacementRemoving the Membrane Installing the Membrane Orbisphere Place the membrane holding ring on the installation tool tip Purge Gas Cylinder Refill 1 N2 Purge Gas2 CO2 Purge Gas Filling the Purge Gas CylinderSerial Test Troubleshooting InstrumentKeyboard Test Clock Settings Display TestAnalog Voltages View Measurements ViewProgram Identification Troubleshooting OperationDiagnostics Messages Continuous PurgeTroubleshooting Table Symptom Cause Possible SolutionSpecifications Instrument SpecificationsSensor Specifications Sensor Type 31 270 HSensor Type 31 272 H 31 570 N PFA Etfe EctfeSpecifications 3654 Portable H2/N2 Analyzer Part Lists Instrument ConfigurationsTC Sensor and Parts on Configured System Analyzer Spare PartsSensor Spare Parts Terms and Definitions Appendix a GlossaryCommon Units UnitGlossary 3654 Portable H2/N2 Analyzer Annex Tables and IllustrationsAnnex 3654 Portable H2/N2 Analyzer User Notes