Michell Instruments Liquidew EExd User Manual page 5

Liquidew EExd User's Manual
3.7.5.1 Editing the Table of Cs Values ................................................................ 25
3.7.5.2 Editing the Label for the User-defined Solute .......................................... 25
3.8 SENSOR INFO Page ......................................................................................... 26
3.9 CONTACT INFO Page ....................................................................................... 26
4 MAINTENANCE ................................................................................................27
4.1 Enclosure Cover and User Interface ................................................................... 27
4.2 Replacement of the Sensor Assembly ................................................................. 28
4.3 Replacement of the Flow Meter ......................................................................... 30
4.4 Troubleshooting ................................................................................................ 31
4.4.1 Error Messages ........................................................................................... 31
4.4.2 Error Messages Flashing over Displayed Values ............................................. 31
4.4.3 Logged Error Codes ..................................................................................... 32
4.4.4 Analyzer Fault Alarm Relay ........................................................................... 33
Figures
Figure 1 Liquidew EExd Sampling System ..................................................................4
Figure 2 Power Connection Connector .......................................................................5
Figure 3 Earthing Stud And Nut Washer Assembly .....................................................6
Figure 4 Liquidew EExd Dimensions ........................................................................10
Figure 5 Pipework Connections ...............................................................................11
Figure 6 Hook-up Wiring Diagram ...........................................................................13
Figure 7 Minimum Requirements for Start-up Purging ..............................................15
Figure 8 MAIN Page in Single Channel (top) and Dual Channel Modes .......................16
Figure 9 User Interface ..........................................................................................16
Figure 10 Up/Down Arrow Buttons ...........................................................................17
Figure 11 'SELECT' Button ........................................................................................17
Figure 12 'MENU/MAIN' Button .................................................................................17
Figure 13 Menu Structure ........................................................................................18
Figure 14 MAIN MENU Page .....................................................................................19
Figure 15 STATUS Page ...........................................................................................19
Figure 16 LOGGED DATA Page .................................................................................20
Figure 17 STATISTICS Page .....................................................................................21
Figure 18 SYSTEM FAULTS Page ...............................................................................21
Figure 19 PASSWORD Page ......................................................................................22
Figure 20 VARIABLES Pages (Examples) ...................................................................23
Figure 21 SENSOR INFO Page ..................................................................................26
Figure 22 CONTACT INFO Page ................................................................................26
Figure 23 Ribbon Cable Connection ..........................................................................28
Figure 24 Moisture Sensor Assembly Replacement .....................................................29
Figure 25 Flow Meter Replacement ...........................................................................30
Figure 26 Error Message Line ...................................................................................31
Figure 27 Logged Error Codes ..................................................................................32
Figure 28 Mounting Drawing ....................................................................................37
Figure 29 Pipework Connections ...............................................................................38
Figure 30 System Wiring Diagram .............................................................................39
Figure 31 Calibration Correction Data........................................................................49
Figure 32 Reading Holding Registers State Diagram ...................................................64
Figure 33 Write Single Register State Diagram ...........................................................66
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