OAK Environmental Express PH250, Instruction Manual

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Contents
XI
■ Product Overview ............................................................. 1
● Package Content ........................................................ 1
● Key Features .............................................................. 2
● Product components ................................................. 3
■ Basic operations ............................................................... 7
● Mode and measurement ............................................ 9
■ Calibration ....................................................................... 11
● pH Calibration .......................................................... 11
● ORP/mV Calibration ................................................. 13
● Temperature Calibration ......................................... 15
■ Data .................................................................................. 17
● Data capture and storage ........................................ 17
● Data transfer ............................................................. 18
■ Setup ................................................................................ 19
● P1 pH setup .............................................................. 19
● P2 Data setup ........................................................... 23
● P3 General setup ..................................................... 27
● P4 CLK setup ........................................................... 32
■ Maintenance and storage .............................................. 35
● Maintenance and storage of the instrument ......... 35
● Maintenance and storage of pH and ORP electrodes
36
■ Error messages and trouble shooting .......................... 38
■ Appendix ......................................................................... 42
● Appendix 1 ............................................................... 42
● Appendix 2 ............................................................... 44
● Appendix 3 ............................................................... 47