YOKOGAWA PH450G

Toc-1
IM 12B07W01-04EN
1st Edition : Nov. 11, 2016-00
Chemical Cleaning
pH Measuring System
CONTENTS
IM 12B07W01-04EN 1st Edition
u Introduction ....................................................................................................i
u Safety Precautions ......................................................................................iii
1. General ...................................................................................................... 1-1
1.1 Standard Specications ................................................................................... 1-1
1.2 Model and Sufx Codes ................................................................................... 1-4
1.3 External Dimensions ........................................................................................ 1-6
2. Installation ................................................................................................. 2-1
2.1 Installing the PH8SM3 Chemical Cleaning Unit for a Chemical Cleaning Sys-
tem ...................................................................................................................... 2-1
2.1.1 Where to install the unit ...................................................................... 2-1
2.1.2 Installation Facilities ........................................................................... 2-2
2.1.3 Installing Chemical Cleaning Unit ...................................................... 2-2
2.2 Installing the PH8HS3 Holder .......................................................................... 2-3
2.2.1 Where to install the holder ................................................................. 2-3
2.2.2 Installation Facilities ........................................................................... 2-3
2.2.3 Installing the PH8HS3 Holder ............................................................ 2-4
3. Piping and Wiring ..................................................................................... 3-1
3.1 Piping ................................................................................................................. 3-1
3.1.1 Line for Connecting Air Source .......................................................... 3-2
3.1.2 Line for Actuating Cylinder to Drive Sensor Pneumatically (Upward) 3-2
3.1.3 Line for Actuating Cylinder to Drive Sensor Pneumatically (Downward) 3-2
3.1.4 Line for Forced Feeding of Chemical Solution and Air-bubbling ....... 3-2
3.1.5 Line for Pressurizing KCl Reserve Tank ............................................ 3-2
3.2 Wiring ................................................................................................................. 3-3
3.2.1 Wiring for Intelligent Two-wire pH Transmitter System ...................... 3-4
3.2.2 Wiring system with 2-Wire Analyzer .................................................. 3-6
4. Operation ................................................................................................... 4-1
4.1 Names and Functions of Components ........................................................... 4-1
4.2 How the Chemical Cleaning pH Measuring System Works ......................... 4-3
4.2.1 Operating Modes ............................................................................... 4-3
4.2.2 WASH (Cleaning) Command ............................................................. 4-3
4.2.3 Wash Sequence ................................................................................. 4-4
4.3 Startup ................................................................................................................ 4-5
4.3.1 Inspection of Piping and Wiring ......................................................... 4-5