54.5 Atmospheric Pressure Calibration ................................................................... 384.6 ORP Calibration .......................................................................................... 384.7 Temperature Calibration ............................................................................... 39CHAPTER 5 - GPS MENU (optional) ............................................................... 40CHAPTER 6 - LOGGING MODE6.1 Logging ...................................................................................................... 436.1.1 Logging Options .................................................................................... 436.2 Log Data Setup ............................................................................................ 456.2.1 Lots ...................................................................................................... 456.2.2 Delete All Lots ........................................................................................ 466.2.3 Remarks ................................................................................................ 476.2.4 Delete All Remarks .................................................................................. 476.2.5 Tags ...................................................................................................... 47CHAPTER 7 - GLP DATA7.1 Probe Information ......................................................................................... 507.2 pH ............................................................................................................. 517.3 Dissolved Oxygen ......................................................................................... 517.4 Conductivity ................................................................................................ 527.5 Atmospheric Pressure .................................................................................... 527.6 ORP ........................................................................................................... 537.7 Temperature ................................................................................................. 53CHAPTER 8 - PC CONNECTION8.1 Software Installation ...................................................................................... 548.2 PC Connection ............................................................................................ 54CHAPTER 9 - ERROR MESSAGES .................................................................... 56APPENDIXA - PROBE MAINTENANCE ................................................................................ 59B - ACCESSORIES .............................................................................................. 61C - WARRANTY ................................................................................................. 63