Owner manual

ManualsBrandsYokogawa ManualsSensorsEXAxt PH450 4-Wire Analyzer for pH and ORP

IM 12B07C05-01E

iii

IM 12B07C05-01E

4th Edition: Mar. 2012(YK)

TABLE OF CONTENTS

PREFACE

1. INTRODUCTION AND GENERAL DESCRIPTION

.....................................................1

1-1. Instrument check ...................................................................................................1

1-2. Application .............................................................................................................1

2. GENERAL SPECIFICATIONS OF EXAxt PH450G

.....................................................2

3. INSTALLATION AND WIRING

.....................................................................................5

3-1. Installation and dimensions ...................................................................................5

3-1-1. Installation site ..........................................................................................5

3-1-2. Mounting methods .....................................................................................5

3-2. Wiring ....................................................................................................................7

3-2-1. Preparation ................................................................................................ 7

3-2-2. Cables, Terminals and glands ..................................................................8

3-3. Wiring the power supply ........................................................................................9

3-3-1. General precautions .................................................................................. 9

3-3-2. Access to terminal and cable entry ......................................................... 10

3-3-3. AC power ................................................................................................10

3-3-4. DC power ................................................................................................10

3-3-5. Grounding the housing ............................................................................11

3-3-6. Switching on the instrument .................................................................... 11

3-4. Wiring the contact signals....................................................................................12

3-4-1. General precautions ................................................................................ 12

3-4-2. Contact outputs. ......................................................................................12

3-4-3. Contact intput. .........................................................................................12

3-5. Wiring the mA-output signals .....................................................................12

3-5-1. General precautions ................................................................................ 12

3-5-2. Analog output signals ..............................................................................12

3-6. Wiring the sensor system ....................................................................................13

3-6-1.

Impedance measurement jumper settings .................................................... 13

3-7. Sensor wiring ....................................................................................................... 13

3-7-1. Connection cable ....................................................................................13

3-7-2. Sensor cable connection with special grommet (450G-□-A version) .....16

3-7-3. Sensor cable connections using junction box (BA10) and extension

cable (WF10) ............................................................................................17

4. OPERATION OF EXAxt PH450G

..............................................................................19

4-1. Main display functions .........................................................................................19

4-2. Trending graphics ................................................................................................19

4-3. Zoom in on details ...............................................................................................19

4-3-1. Actual mA1 .............................................................................................. 19

4-3-2. Actual mA2 .............................................................................................. 19

4-3-3. Zero .........................................................................................................19

4-3-4. Slope .......................................................................................................20