2 DF-310E Index
6.3.5 Pressure Regulator Purge..........................................................................37
6.3.6 Pressure Effects on Sensor Performance ...................................................37
6.3.7 Sample Outlet Backpressure Effects .........................................................38
6.4 Sample Gas Compatibility.....................................................................................38
6.4.1 Condensation ...........................................................................................38
6.4.2 Gas Solubility in Aqueous KOH Solution .................................................39
6.4.3 Reactivity with KOH Electrolyte ..............................................................39
6.4.4 Flammable Sample Gas............................................................................39
6.4.5 Trace acids in the sample gas....................................................................39
6.4.6 Sample Gas Temperature..........................................................................40
6.4.7 Protecting the Analyzer from Process Upsets ............................................40
6.5 Calibration Gas Considerations..............................................................................40
6.5.1 Calibration Standards ...............................................................................40
6.5.2 Calibration Cylinder Regulators................................................................41
6.5.3 Purge Procedure .......................................................................................41
6.5.4 Sample Gas Delivery and Vent Pressure during Calibration.......................41
6.5.5 Background Gas Effects on Calibration.....................................................42
7 Connecting to External Devices............................................43
7.1 The Comm Port.....................................................................................................43
7.2 Relay Ports............................................................................................................44
7.3 Analog Outputs.....................................................................................................45
7.3.1 Analog Voltage Output.............................................................................45
7.3.2 4-20mA Output ........................................................................................46
7.3.3 Alignment Procedure for Analog Voltage and Current Loop Outputs.........47
7.4 Remote Controls ...................................................................................................47
7.4.1 Remote Sensor Control – J6 Connector.....................................................47
7.4.2 Remote Pump Control – J6 Connector ......................................................48
7.5 Remote Sensor Installations...................................................................................49
7.5.1 Sensor on Remote Bracket with Optional Pump ........................................50
7.5.2 Sensor in NEMA 4 Enclosure...................................................................51
7.5.3 Sensor in NEMA 7 Enclosure...................................................................52
7.5.4 Temperature Control in R4/R7 Enclosures................................................53
7.5.5 Remote Sensor Connections – Connector J7 .............................................54
7.5.6 Z-Purge Protection on R4 Enclosure.........................................................56
8 User Interface..........................................................................59
8.1 The Data Display Screen .......................................................................................59
8.2 Main Menu ...........................................................................................................63
8.2.1 Keypad Operation ....................................................................................64
8.3 Controls Menu ......................................................................................................65
8.3.1 Pump .......................................................................................................65
8.3.2 Sensor Polarization...................................................................................66
8.3.3 SensOFF Relay ........................................................................................66
8.3.4 P(o)w(e)r UP............................................................................................67
8.3.5 ESC .........................................................................................................67
8.4 Set-Up Menu.........................................................................................................67
8.4.1 Alarms .....................................................................................................68
8.4.2 Analog Outputs ........................................................................................70
8.4.3 Comm Port...............................................................................................73
8.4.4 Gas Scale Factor.......................................................................................74
8.4.5 Display Setup...........................................................................................74
8.4.6 Clock .......................................................................................................75
8.5 The Password Menu ..............................................................................................76
8.6 Maintenance..........................................................................................................77
8.6.1 Replenish Solution Reminder ...................................................................78
8.6.2 Oxygen Calibration ..................................................................................79
8.6.3 Diagnostics ..............................................................................................86
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