2 of 66 Table of Contents - 3654 Portable H2/N2 Analyzer
Operator Manual
ORBISPHERE
3.4.2 Measurement Units..............................................................30
3.4.3 Membrane Selection............................................................31
3.4.4 Automatic Data Acquisition - Setting Sampling Intervals.....31
3.4.5 Calibration Medium..............................................................32
3.4.6 Locking Out the Instrument’s CAL Button............................32
3.4.7 Rolling Average....................................................................32
3.4.8 Automatic Shutdown............................................................33
3.4.9 Measurement Mode.............................................................33
4 Calibrations
4.1 Barometric Pressure Sensor Calibration ...........................................35
4.2 Sensor Calibration .............................................................................36
4.2.1 Calibration Setup.................................................................37
4.2.2 Calibration In H2 or N2 at Atmospheric Pressure.................38
4.2.3 Calibration In H2 or N2 at Elevated Pressure.......................39
4.2.4 Calibrating In a Liquid H2 or N2 Solution..............................40
5 Accessories and Attachments
5.1 Model 32311 Flow Meter ...................................................................41
5.2 Model 32939 External Power Supply.................................................42
6 Maintenance and Troubleshooting
6.1 Power Supply.....................................................................................43
6.2 Sensor Maintenance ..........................................................................43
6.2.1 Maintenance Schedule........................................................43
6.2.2 Testing the Sensor Condition...............................................43
6.2.3 Mounting Dual Membranes..................................................44
6.3 Membrane Replacement ...................................................................44
6.3.1 Removing the Membrane.....................................................44
6.3.2 Installing the Membrane.......................................................45
6.4 Purge Gas Cylinder Refill ..................................................................48
6.4.1 N2 Purge Gas.......................................................................48
6.4.2 CO2 Purge Gas....................................................................49
6.4.3 Filling the Purge Gas Cylinder.............................................49
6.5 Troubleshooting - Instrument .............................................................50
6.5.1 Serial Test............................................................................50
6.5.2 Keyboard Test .....................................................................50
6.5.3 Display Test.........................................................................51
6.5.4 Clock Settings......................................................................51
6.5.5 Analog Voltages View..........................................................52
6.5.6 Measurements View............................................................52
6.6 Troubleshooting - Operation ..............................................................53
6.6.1 Program Identification..........................................................53
6.6.2 Diagnostics Messages.........................................................53
6.6.3 Continuous Purge................................................................53
6.6.4 Troubleshooting Table.........................................................54