Hach EC1000, Instruction Manual

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TABLE OF CONTENTS
CERTIFICATION .......................................................................................................................................................... 3
SPECIFICATIONS ........................................................................................................................................................ 9
SAFETY PRECAUTIONS .......................................................................................................................................... 13
OPERATION
.............................................................................................................................................................. 15
SECTION 1 GENERAL INFORMATION ........................................................................................................... 17
1.1 Instrument Description ........................................................................................................................................... 17
1.2 EC1000 pH/ORP Controller ................................................................................................................................... 17
1.3 Electrolyte Pump .................................................................................................................................................... 17
1.4 Hach One Process pH Electrode ............................................................................................................................ 21
1.4.1 Sodium Error .............................................................................................................................................. 21
1.5 Hach One ORP Electrode ....................................................................................................................................... 21
1.6 Industrial Process pH Electrode ............................................................................................................................. 22
1.7 Sample Handling System ....................................................................................................................................... 22
1.7.1 Submersible ................................................................................................................................................ 22
1.7.2 Flow-Thru Cell ........................................................................................................................................... 22
1.7.3 In-Line ........................................................................................................................................................ 22
1.8 Principle of Operation ............................................................................................................................................ 23
SECTION 2 OPERATION ...................................................................................................................................... 25
2.1 Operating the User-Programmable Setup ............................................................................................................... 25
2.1.1 Moving Around the Menu .......................................................................................................................... 25
2.1.2 Editing a Setup Value ................................................................................................................................. 25
2.1.3 Restoring Default Settings .......................................................................................................................... 27
2.2 Setup Menu ............................................................................................................................................................. 28
2.2.1 Alarms ........................................................................................................................................................ 28
2.2.2 Recorder Output ......................................................................................................................................... 29
2.2.3 PID Output .................................................................................................................................................. 30
2.2.4 Recorder 2 ................................................................................................................................................... 33
2.2.5 Initial Setup ................................................................................................................................................. 33
2.2.5.1 Temperature Compensation Setup ............................................................................................... 33
2.2.6 Keylock ....................................................................................................................................................... 35
2.2.7 Reference Solution Timer ........................................................................................................................... 36
2.2.8 Warnings ..................................................................................................................................................... 36
2.3 Calibration .............................................................................................................................................................. 37
2.3.1 pH Calibration ............................................................................................................................................ 38
2.3.1.1 Two-Point Calibration with Auto Recognition of Hach Buffers ................................................. 39
2.3.1.2 One-Point Grab Sample Calibration ............................................................................................ 40
2.3.1.3 Calibration Procedure Variations ................................................................................................. 40
2.3.1.4 One Point Calibration with a Buffer ............................................................................................ 41
2.3.1.5 Calibration Review ....................................................................................................................... 41
2.3.2 Temperature Calibration ............................................................................................................................. 41
2.3.3 ORP Calibration/mV Zero .......................................................................................................................... 42
2.3.3.1 Preamp Zero ................................................................................................................................. 42
2.3.3.2 ORP Electrode Check .................................................................................................................. 43
2.3.3.3 mV Offset ..................................................................................................................................... 43