ii
3.3 Computer Interface ..................................................................................36
3.3.1 AquaLink 4 Software ...................................................................... 36
3.3.2 Using a Terminal Program .............................................................. 37
3.4 Theory ...................................................................................................... 37
3.4.1 Moisture Content ........................................................................... 37
3.4.2 Water Activity ................................................................................ 38
3.4.3 Chilled-Mirror Dew Point Limitations.............................................40
3.4.4 Water Potential .............................................................................. 41
3.4.5 Sorption Isotherms ........................................................................ 41
4. Service ....................................................................................................... 43
4.1 Verification and Calibration ................................................................... 43
4.1.1 Water Activity Verification ............................................................. 43
4.1.2 Linear Offset ..................................................................................46
4.1.3 Multipoint Calibration (TEV Only) ................................................... 48
4.1.4 Restore Factory Defaults ............................................................... 51
4.2 Cleaning ................................................................................................... 52
4.2.1 Cleaning Kit ................................................................................... 53
4.2.2 AQUALAB 4TEV Special Considerations .........................................53
4.2.3 Cleaning Procedure ........................................................................ 53
4.3 Maintenance Packages ............................................................................ 55
4.4 Repair ...................................................................................................... 55
4.5 Troubleshooting ....................................................................................... 56
4.6 Customer Support....................................................................................59
4.7 Terms and Conditions .............................................................................. 59
Reference ....................................................................................................... 60
Index .................................................................................................................61