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Emerson
2468CD, 2468CB
manual
Models:
2468CD
2468CB
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186 pages
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Specifications
Install
Faults
Symbol Meaning
Dimension
2.5SYSTEM CONFIGURATION
Symptom
2.1SCOPE OF PROCEDURES
2.5.1.2Pulsed Output Setting
2.6.1COMPONENT REPLACEMENT
Page 185
Image 185
Page 184
Page 186
Page 185
Image 185
Page 184
Page 186
Contents
Hydrastep
Hydrastep 2468CB and 2468CD
Electronic Gauging System
Dual Power Supply Version
SOLUTION See Note
SYMPTOM
CATEGORY
POSSIBLE CAUSES See Note
Mobrey Customer Support
HYDRASTEP START-UP
Part 1 – Electrical/Electronic System
About this manual
Part 2 – Pressure Parts
Part 3 – Appendix
Symbol Meaning
SYMBOLS USED IN THIS MANUAL AND ON THE UNIT
Page
Hydrastep 2468CB & 2468CD
Part
Electronic Gauging System
24685034
Pt.1-2
DANGEROUS VOLTAGES ARE PRESENT IN
Pt.1-4
Part
Contents
Pt.1-6
Illustrations
Contents
Page No
Tables
0040
1.1WATER LEVEL MEASUREMENT
24685034
1.2.2DISPLAY BOARD
1.2HYDRASTEP 2468 ELECTRONIC GAUGING SYSTEM
1.2.1INPUT BOARDS
1.2.3SYSTEM FAULTS 2468CB OR 2468CD
1.3SYSTEM OPTIONS
1.3.1OUTPUT BOARDS
1.3.2REMOTE DISPLAY UNITS
Existing System
Table 1.1 - Upgrade paths and available options
Available Options
Comments
24685034
2468CB & 2468CD Dual Power Supply Version
SPECIFICATION
FAULT ANALYSIS & CORRECTIVE ACTION
2-23
2-32
2.2ELECTRODE CABLING SYSTEM
2.1INTRODUCTION
2.3ELECTRONIC ENCLOSURE
Number of
2468CB & 2468CD Dual Power Supply Version
2.3.2REMOTE DISPLAY DRIVE CAPABILITY
2.3.1INPUT BOARD PCB 24680501 AND PCB
2.3.1.1Analogue Output Drive Capability
2.3.3.1Link LK1
2.3.3DISPLAY BOARD PCB
No. of Electrodes used
2.3.3.2Links LK2, LK3, LK4 and LK5
Link Headers fitted
2.3.4PCB INTERCONNECTIONS
2.4INSTALLATION
24685034
Electrode connections
2-10
Water column connections for 16 electrodes
2-11
Conductor
Number
2-12
2.4.2.3Connecting the Electrode Cable Assemblies to 2468 Enclosure
2-13
AC Powered Units input board
2.4.2.4Hydrastep Power Supply Cables
Figure 2.4 Voltage Selection 240V or
DC Powered Units input board
2-14
2.4.2.5Analogue Output Connection
2-15
Part of Display Board showing PL4
2.4.2.6Opto-IsolatedFault Output Connection
2-16
2.5.1.1Analogue Output Configuration
2.5SYSTEM CONFIGURATION
2-17
2.5.1INPUT BOARD PCB 24680501 OR
2.5.1.3Electrode Error Configuration
2.5.1.2Pulsed Output Setting
2-18
Input Board Option Board Removed
Offset voltages
2-19
2-20
2.5.2.1Link LK1 Setting
2.5.2DISPLAY BOARD
Table 2.2 - Number of electrodes being displayed
2-21
2-22
2.5.2.3‘Switching Threshold’ Setting
2.5.2.4 ‘Compatibility’ Setting
2-23
2.6FAULT ANALYSIS & CORRECTIVE ACTION
2-24
Faults
Indication
Analysis and Corrective Action
2-25
2-26
Bottom half of
2-27
alternates
alternating between water and steam green and
Bottom half of
2-28
State 5 contd
2-29
2-30
2.6.1COMPONENT REPLACEMENT
2.6.1.1Removing the Input Board 24680501 or
2.6.1.2Refitting the Input Board
2-31
2.6.2PARTS LIST - HYDRASTEP 2468 CB & CD VERSIONS
Item Description
Mobrey
2-32
SPECIFICATION
Page No
Wiring Diagrams for Dual Power Supply Version
2-WD.1
2-WD.2
Wiring Diagrams for Dual Power Supply Version
2-WD.3
Wiring Diagrams for Dual Power Supply Version
2-WD.4
2-WD.5
2-WD.6
2-WD.7
2-WD.8
2-WD.9
Hydrastep 2468CB and 2468CD Manual
2-WD.10
2-WD.11
2-WD.12
2-WD.13
2-WD.14
2-WD.15
2-WD.16
3a-1
2468 - Relay Output Board Option
3a-7
3a-2
3a-3
3A.2 INSTALLATION
3A.1 GENERAL DESCRIPTION
3a-4
3a-5
3A.2.3 ELECTRICAL INSTALLATION
3a.2.3.1 PCB Interconnections
3a.2.3.2 Relay Output Connections
3a-6
3A.3 RELAY BOARD CONFIGURATION
3A.3.1 RELAY OUTPUT BOARD
3a.3.1.1 Configuring the Relay Output Board
3a-7
3a-8
3a.3.2.1 Philosophy
3A.3.2 ALARM AND TRIPPING FACILITIES
3a-9
3a-10
3a-11
3a-12
3a-13
3a-14
3a-15
3A.4 COMPONENT REPLACEMENT
3a-16
3A.5 SPECIFICATION
3b-1
Delay Relay Output Board Option
3B.5
SPECIFICATION
3b-2
3b-3
3B.2 INSTALLATION
3B.1 GENERAL DESCRIPTION
3b-4
3b-5
3B.2.3 ELECTRICAL INSTALLATION
3b.2.3.1 PCB Interconnections
3b.2.3.2 Relay Output Connections
3b-6
3B.3 DELAY RELAY BOARD CONFIGURATION
3B.3.1 DELAY RELAY OUTPUT BOARD
3b.3.1.1 Configuring the Delay Relay Output Board
3b-7
3b-8
3b-9
3b.3.1.6 Delay Circuit Configuration
3b-10
3b.3.1.7 Configuring the Delay Circuit Split Pads
3b.3.2.1 Philosophy
3b-11
3b-12
3b-13
3b-14
3b-15
3b-16
3b-17
3B.4 COMPONENT REPLACEMENT
3b-18
3B.5 SPECIFICATION
2468 Opto-isolatedOutput Board Option
3c-2
Illustrations
Tables
3c-3
3C.2 INSTALLATION
3C.1 GENERAL DESCRIPTION
3c-4
3c.2.3.2 Opto-IsolatedOutput Connections
3c-5
3c-6
3C.3 OPTO-ISOLATEDOUTPUT BOARD CONFIGURATION
3c-7
3c-8
3c.3.2.1 Philosophy
3C.3.2 ALARM AND TRIPPING FACILITIES
3c-9
3c-10
3c-11
3c-12
3c-13
3c-14
3C.4 COMPONENT REPLACEMENT
3c-15
3C.5 SPECIFICATION
3c-16
Remote Display Options 24683B, C, & D
Figure
4.1REMOTE DISPLAY OPTIONS
4.2CONFIGURATION
4.2.2RECONFIGURING THE 24683D REMOTE DISPLAY
4.3.2INSTALLING THE 24683D WALL MOUNTED UNIT
4.3MECHANICAL INSTALLATION
comply with the EMC directive
4.4ELECTRICAL INSTALLATION
Daisy Chain
4.4.1STAR AND DAISY CHAIN CONNECTIONS
Star
4.4.2EXAMPLE OF A ‘STAR CONNECTED’ SYSTEM
4-10
4.4.3EXAMPLE OF A `DAISY CHAIN SYSTEM
Service
4.4.4CONNECTING CABLES TO THE REMOTE DISPLAY
4-11
Terminal
4-12
4.4.5CONNECTING THE DISPLAY CABLES TO HYDRASTEP
4.5SYSTEM OPERATION
4.6FAULT ANALYSIS AND CORRECTIVE ACTION
Fault
4-13
4-14
Bottom half of fault
Flickering Display
4-15
4-16
4.7COMPONENT REPLACEMENT
Item
Mobrey Part Number
DIMENSIONS
4.8SPECIFICATION
POWER SUPPLY
REMOTE DISPLAY UNITS
4-18
Operating Manual
Hydrastep Pressure Parts
24675030
Pt.2-2
Pt.2-3
Part 2 - Pressure Parts
Pt.2-4
ELECTRODE INSTALLATION
R E M I N D E R
CORRECT
INCORRECT
Pt.2-6
Pt.2-7
N O T I C E
Pt.2-8
Installation Procedures
Part 2 - Hydrastep Pressure Parts
Unit Specifications - Hydrastep
Fault Repair and Commissioning
Pt.2-10
PRINCIPLE OF OPERATION
General Introduction
WATER LEVEL INDICATION
24675030
Hydrastep Pressure Parts
24675030
1.2WATER LEVEL INDICATION
1.1PRINCIPLE OF OPERATION
24675030
General Introduction
Hydrastep Pressure Parts
SCOPE OF PROCEDURES
Installation Procedures
INSTALLATION OF WATER COLUMN
STORAGE
Installation Procedures
2.3INSTALLATION OF WATER COLUMN
2.1SCOPE OF PROCEDURES
2.2STORAGE
2.2.4HANDLING PRECAUTIONS
discarded
Figure 2.1 - Universal weld profile
2.4INSPECTION OF MECHANICAL INSTALLATION WORK
24675030
Figure 2.3 - Typical water column suspension
WATER COLUMN COMMISSIONING OR RECOMMISSIONING
Fault Repair and Commissioning
BACKGROUND
Hydrastep Pressure Parts
3.1.1SAFETY PRECAUTIONS
3.1BACKGROUND
3.1.3.1Low Pressure Electrodes
3.1.2WATER COLUMN ISOLATION
3.1.3ELECTRODE AND ELECTRODE SEAL LEAKS
3.1.3.2High Pressure Electrodes
3.2.1VENT AND DRAIN VALVE REPAIRS
3.2WATER COLUMN COMMISSIONING OR RECOMMISSIONING
3.2.4WATER COLUMN LIFE
3.2.2WATER COLUMN TRANSIENT RESPONSE
3.2.3WATER COLUMN OR PIPEWORK BLOCKAGE
Hydrastep Pressure Parts
Unit Description
Unit Description
Figure 4.1 - Low pressure electrode
4.1LOW PRESSURE ELECTRODES
Figure 4.2 - High pressure electrode
4.2HIGH PRESSURE ELECTRODES
4.3WATER COLUMN L.P
4.4WATER COLUMN H.P
4.5WATER COLUMN H.P. SUPERCRITICAL
24675030
5.1ELECTRODES
Unit Specifications - Hydrastep
Super
5.2WATER COLUMNS
Series
Hydrastep 2468CA, CB, CC & CD
Part
Electronic Gauging System
Pt.3-1
Pt3-2
A.1 GENERAL
CSA Certified
Hydrastep 2468 - Technical Manual
Page
Appendix A CSA Approval
Page
Operating Manual
Hydrastep
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