2
14. Good Laboratory Practices (GLP) ...................................................................................................34
14.1 Recalling Calibration information on the display...................................................................................... 34
14.2 Printing Calibration information to the RS232 Port .................................................................................. 35
14.3 Recalling System information on the display............................................................................................ 35
14.4 Printing System information to the RS232 Port ........................................................................................ 38
14.5 Failed Calibration.................................................................................................................................... 39
14.6 Instrument Serial Number........................................................................................................................ 39
14.7 Additional GLP Features ......................................................................................................................... 39
15. Datalogging Function.......................................................................................................................40
15.1 Recording readings manually................................................................................................................... 40
15.2 Recording readings automatically ............................................................................................................ 40
15.3 Recalling Readings from the Notepad ...................................................................................................... 41
15.4 Erasing Records from the Notepad........................................................................................................... 42
15.5 Printing Records from the Notepad to the RS232 Port .............................................................................. 42
16. RS232 Port ........................................................................................................................................43
16.1 Setting the Baud Rate .............................................................................................................................. 43
16.2 Sending Readings to the RS232 Port........................................................................................................ 43
16.3 RS232 Configuration............................................................................................................................... 43
16.4 Communication and Statistical Software .................................................................................................. 43
16.5 Commands .............................................................................................................................................. 44
16.6 Data Format ............................................................................................................................................ 45
16.7 GLP Data Format .................................................................................................................................... 47
16.8 Importing Data into Microsoft Excel........................................................................................................ 48
17. Setting the Clock ..............................................................................................................................50
18. Selecting the Conductivity/TDS units..............................................................................................51
19. Selecting Display Resolution...........................................................................................................51
20. Emergency ShutOFF timer...............................................................................................................52
20.1 Procedure in event of ShutOFF timer being tripped .................................................................................. 52
21. Selecting Buffers for Auto Buffer Recognition ...............................................................................53
22. Resetting the hydro
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................................................................................................................54
22.1 Resetting the Calibration information only ............................................................................................... 54
22.2 Resetting the Full System information ..................................................................................................... 54
22.3 Factory Default System Settings .............................................................................................................. 55
23. Instrument firmware version number ..............................................................................................55
24. Troubleshooting ...............................................................................................................................56
24.1 General Errors......................................................................................................................................... 56
24.2 Conductivity / TDS Troubleshooting ....................................................................................................... 57
24.3 pH Troubleshooting................................................................................................................................. 58
24.4 Temperature Troubleshooting .................................................................................................................. 58
24.5 Pump Troubleshooting ............................................................................................................................ 58
25. Appendices.......................................................................................................................................59
25.1 Mounting the hydro
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...................................................................................................................... 59
25.2 Care and Cleaning of Conductivity Sensors.............................................................................................. 59
25.3 pH Electrode Fundamentals ..................................................................................................................... 60
25.4 hydro
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Specifications ..................................................................................................................... 62
26. Warranty ...........................................................................................................................................64
