Hach 3654 Portable H2/N2 Analyzer manual 2 CO2 Purge Gas, Filling the Purge Gas Cylinder

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3654 Portable H2/N2 Analyzer - Maintenance and Troubleshooting

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6.4.2 CO2 Purge Gas

Fill the CO2 purge gas cylinder to a maximum of 57 bar (liquid phase at 20°C) from a master CO2 storage cylinder equipped with a plunger tube, using fittings supplied with the analyzer.

WARNING

CO2 is toxic, asphyxiating, and heavier than air. Therefore, filling should be carried out in a ventilated place and leaks should be avoided.

6.4.3 Filling the Purge Gas Cylinder

The process for filling the purge gas cylinder is identical regardless of which purge gas you are using. For important information relevant to the different purge gases, refer to the two sections above.

Refill the purge gas cylinder in a clean and dry area as follows, referring to the illustration in Fig 6-1 on page 48 for more information:

1)Connect the refilling hose (model 32824A) to the master storage cylinder.

2)Close the bleed valve on the refilling hose.

3)Carefully, open the main valve on the master storage cylinder.

4)Close the main valve on the master storage cylinder.

5)Open the bleed valve on the refilling hose to purge the hose.

6)Close the bleed valve on the refilling hose.

7)Remove the protection cap from the instrument base.

8)Connect the refilling hose to the instrument. This is a push-on connector, so make sure that the connector clicks into the instrument fitting.

Note:

Position the instrument below the outlet of the master storage cylinder.

9)Carefully open the main valve on the master cylinder and wait about 30 seconds for the refilling process to finish.

10)Close the main valve on the master storage cylinder.

11)Open the bleed valve on the refilling hose to purge the hose.

12)Carefully, disconnect the refilling hose from the instrument by sliding the hose attachment in the direction shown (toward the instrument) and pulling back the connector.

13)Replace the protection cap on the instrument.

Operator Manual

ORBISPHERE

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Contents Operator Manual Page Product Recycling Information Orbisphere Following only applies to European customers Product DisposalRestriction of Hazardous Substances Board Analog Board Spacer External ConnectorTable of Contents Maintenance and Troubleshooting Accessories and AttachmentsCalibrations Part Lists SpecificationsAppendix a Glossary Table of Contents 3654 Portable H2/N2 Analyzer Revision History Safety ConventionsManual Overview About this ManualSafety Recommendations Safety PrecautionsService and Repairs Acknowledgements Precautionary LabelsOrbisphere What you have Received InstallationSensor Installation WIN3654 PC Program InstallationAtmospheric Pressure Equilibrium Instrument PC Connection External Power Supply optionalPurge Gas Connection ConnectionsPin RS232 Signal Use Flow Chamber Installation Installation Completion Check List Dissolved Gas Measurements Flow ChamberOrbisphere Operating Controls Operating InstructionsMeasurement Phase on Measurement Mode Select Gas Measurement PhaseTaking Measurements Automatic Data Acquisition Storing Measurements In the InstrumentManual Data Acquisition Viewing Stored Measurements Storing and Accessing Measurements From a ComputerDownloading Stored Values Copying Values Altering the Sampling Point DescriptionsSaving Values Clearing Stored Values Printing ValuesTimebase Updating Rate Maximum Samples 10 divisions Monitoring Measurements In Real-TimeAfter Use and Storage Main Menu Basics Options SetupOptions Setup 3654 Portable H2/N2 Analyzer Analyzer PC Connection Reviewing Instrument ConfigurationConfiguring the Instrument Gas Measurement PhaseMeasurement Units Membrane Selection Automatic Data Acquisition Setting Sampling IntervalsLocking Out the Instrument’s CAL Button Calibration MediumRolling Average Automatic Shutdown Orbisphere Barometric Pressure Sensor Calibration CalibrationsCalibration Method Time Benefits Drawbacks Reference Sensor CalibrationCalibration 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 Model 32311 Flow Meter Accessories and AttachmentsModel 32939 External Power Supply Maintenance Schedule Maintenance and TroubleshootingPower Supply Sensor MaintenanceMounting Dual Membranes Membrane ReplacementRemoving the Membrane Installing the Membrane Orbisphere Place the membrane holding ring on the installation tool tip 1 N2 Purge Gas Purge Gas Cylinder RefillFilling the Purge Gas Cylinder 2 CO2 Purge GasSerial Test Troubleshooting InstrumentKeyboard Test Display Test Clock SettingsMeasurements View Analog Voltages ViewContinuous Purge Troubleshooting OperationDiagnostics Messages Program IdentificationSymptom Cause Possible Solution Troubleshooting TableInstrument Specifications SpecificationsSensor Type 31 270 H Sensor SpecificationsPFA Etfe Ectfe Sensor Type 31 272 H 31 570 NSpecifications 3654 Portable H2/N2 Analyzer Analyzer Spare Parts Instrument ConfigurationsTC Sensor and Parts on Configured System Part ListsSensor Spare Parts Unit Appendix a GlossaryCommon Units Terms and DefinitionsGlossary 3654 Portable H2/N2 Analyzer Tables and Illustrations AnnexAnnex 3654 Portable H2/N2 Analyzer User Notes