
IM 12D03D02-01E Toc-1
Contents
CONTENTS
Preface ..........................................................................................................................1
1. Outline ................................................................................................................ 1-1
1.1 Features .......................................................................................................................... 1-1
1.2 Specications .................................................................................................................. 1-2
1.3 When You Receive This Conductivity Meter................................................................... 1-4
1.4
Contents of Model SC72 Personal Conductivity Meter Package.............................................................. 1-5
1.5 Component Names and Functions ................................................................................. 1-6
1.6 Sensor Part Names and Functions................................................................................. 1-7
1.7 Options (Available Separately)........................................................................................ 1-9
1.8 Spare Parts ..................................................................................................................... 1-9
2. Preparation......................................................................................................... 2-1
2.1 Installing the Batteries..................................................................................................... 2-1
2.2 Connecting the Sensor Cable ......................................................................................... 2-2
2.3 Setting the Date and Time .............................................................................................. 2-2
2.4 Setting Temperature Unit................................................................................................. 2-3
2.5 Setting Cell Constant ...................................................................................................... 2-4
2.6 Setting Temperature Compensation Coecient.............................................................. 2-5
3. Measurement...................................................................................................... 3-1
3.1 Precautions...................................................................................................................... 3-1
3.2 Measurement Procedures ............................................................................................... 3-2
3.3 Measurement Display Panel ........................................................................................... 3-2
3.4 Saving a Measured Value ............................................................................................... 3-3
4. Keypad and Display Functions ........................................................................ 4-1
4.1 Keypad Functions............................................................................................................ 4-1
4.2 Display Items................................................................................................................... 4-3
4.3 Function Mode................................................................................................................. 4-4
5. Maintenance ....................................................................................................... 5-1
5.1 For Optimum Meter Performance ................................................................................... 5-1
5.2 Washing the Electrode .................................................................................................... 5-2
5.3 Cleaning and Drying Connectors .................................................................................... 5-3
5.4 Calibration with Standard Solution.................................................................................. 5-4
5.5 Storage and O-ring/Gasket Replacement ....................................................................... 5-7
6. Troubleshooting................................................................................................. 6-1
6.1 Causes of Abnormal Conductivity Display ...................................................................... 6-1
6.2 Error Messages and Corrective Action ........................................................................... 6-1
6.3 Causes of Abnormal Measured Value............................................................................. 6-3
6.4 Other Conditions ............................................................................................................. 6-3
7. Measuring Principles of this Instrument ......................................................... 7-1
7.1 What Is Conductivity? ..................................................................................................... 7-1
7.2 Principles of Operation.................................................................................................... 7-2
7.3 Temperature Compensation and Finding Temperature Compensation Coecient........ 7-2
7.4 Wetted Part Materials of Sensors ................................................................................... 7-4
Appendix.............................................................................................................. App-1
Revision Record............................................................................................................i