Model WQC-30 Table of contents
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5.2 Measurement procedure ························································· 39
5.3 Power on/off ········································································· 48
(1) Power on … 48
(2) Power off … 49
5.4 Date and time adjustment ························································ 50
5.5 Switching measurement types ·················································· 52
5.6 Hold and release measurement values ······································· 54
5.7 Manual memory operation with measurement values ···················· 56
5.8 Checking, printing and erasing memory data ······························· 58
6. Calibration
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6.1 Calibration of pH ···································································· 60
(1) Key points of pH Calibration … 60
(2) pH Calibration Procedure … 61
(3) pH Calibration Data Check … 65
(4) Deletion of pH Calibration Data … 68
(5) Change of pH Standard Solution … 69
6.2 Calibration of turbidity ····························································· 72
(1) Key points of Turbidity Calibration … 72
(2) One-Touch Zero Calibration of Turbidity … 73
(3) Span Calibration of Turbidity … 76
(4) Preparation of Formazine Standard Solution … 80
(5) Preparation of Kaolin Standard Solution … 81
(6) Turbidity Calibration Data Check … 81
(7) Deletion Turbidity Calibration Data … 83
6.3 Calibration of Electrical Conductivity ··········································· 85
(1) Key points of Electrical Conductivity Calibration … 85
(2) Electrical Conductivity Cell Check … 85
(3) Cell constant Calibration … 89
(4) Preparation of cell constant calibration solution … 94
(5) Electrical Conductivity Calibration Data Check … 95
6.4 Temperature Calibration ·························································· 97
6.5 Calibration of Dissolved Oxygen (optional) ································ 100
(1) Key points of Dissolved Oxygen Calibration … 100
(2) Dissolved Oxygen Span Calibration with Air … 103
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