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Emerson 2468CB, 2468CD manual 4.4.5CONNECTING THE DISPLAY CABLES TO HYDRASTEP, 4-12

Models: 2468CD 2468CB

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Remote Display Options 24683B, C & D

Hydrastep 2468CB & 2468CD Manual

4.4.5CONNECTING THE DISPLAY CABLES TO HYDRASTEP 2468

WARNING: Mains voltages are present in the 2468 Hydrastep unit when power is connected. De-energise before opening the front cover.

The connection procedure is:

1.Ensure a stress-free cable run between the remote display unit and Hydrastep 2468.

2.Gain access to the display board in the 2468. The cable from the remote display requires connecting to connectors PL3 and PL7 on PCB 24680515.

3.Enter the cable through the gland port in the 2468 enclosure (if this is applicable) and ensure a stress-free run inside the enclosure.

4.Prepare the cable ends, fit identity sleeves on the leads and connect them to their respective terminals. See the example in Figure 4.5.

5.Ensure that the cable screen is grounded at the gland plate.

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24685034

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Emerson 2468CB, 2468CD manual 4.4.5CONNECTING THE DISPLAY CABLES TO HYDRASTEP, 4-12

Contents

Electronic Gauging System Hydrastep 2468CB and 2468CDHydrastep Dual Power Supply VersionCATEGORY SYMPTOMSOLUTION See Note POSSIBLE CAUSES See NoteHYDRASTEP START-UP Mobrey Customer SupportPart 2 – Pressure Parts About this manualPart 1 – Electrical/Electronic System Part 3 – AppendixSYMBOLS USED IN THIS MANUAL AND ON THE UNIT Symbol MeaningPage Electronic Gauging System PartHydrastep 2468CB & 2468CD 24685034Pt.1-2 24685034DANGEROUS VOLTAGES ARE PRESENT IN Pt.1-4 24685034Contents PartPt.1-6 24685034Page No ContentsIllustrations Tables0040 Hydrastep 2468CB and 2468CD Manual24685034 1.1WATER LEVEL MEASUREMENT Hydrastep 2468CB and 2468CD Manual 246850341.2.1INPUT BOARDS 1.2HYDRASTEP 2468 ELECTRONIC GAUGING SYSTEM1.2.2DISPLAY BOARD 1.3.1OUTPUT BOARDS 1.3SYSTEM OPTIONS1.2.3SYSTEM FAULTS 2468CB OR 2468CD 1.3.2REMOTE DISPLAY UNITSAvailable Options Table 1.1 - Upgrade paths and available optionsExisting System CommentsHydrastep 2468CB and 2468CD Manual 246850342468CB & 2468CD Dual Power Supply Version Contents2-23 FAULT ANALYSIS & CORRECTIVE ACTIONSPECIFICATION 2-322.3ELECTRONIC ENCLOSURE 2.1INTRODUCTION2.2ELECTRODE CABLING SYSTEM Number ofHydrastep 2468CB and 2468CD Manual 2468CB & 2468CD Dual Power Supply Version24685034 2.3.1.1Analogue Output Drive Capability 2.3.1INPUT BOARD PCB 24680501 AND PCB2.3.2REMOTE DISPLAY DRIVE CAPABILITY 2.3.3DISPLAY BOARD PCB 2.3.3.1Link LK1Link Headers fitted 2.3.3.2Links LK2, LK3, LK4 and LK5No. of Electrodes used 2.3.4PCB INTERCONNECTIONS2.4INSTALLATION Hydrastep 2468CB and 2468CD Manual 246850342-10 Electrode connectionsConductor 2-11Water column connections for 16 electrodes Number2.4.2.3Connecting the Electrode Cable Assemblies to 2468 Enclosure 2-122.4.2.4Hydrastep Power Supply Cables AC Powered Units input board2-13 2-14 DC Powered Units input boardFigure 2.4: Voltage Selection 240V or 2-15 2.4.2.5Analogue Output Connection2-16 2.4.2.6Opto-IsolatedFault Output ConnectionPart of Display Board showing PL4 2-17 2.5SYSTEM CONFIGURATION2.5.1.1Analogue Output Configuration 2.5.1INPUT BOARD PCB 24680501 OR2-18 2.5.1.2Pulsed Output Setting2.5.1.3Electrode Error Configuration Input Board Option Board Removed2-19 Offset voltages2.5.2DISPLAY BOARD 2.5.2.1Link LK1 Setting2-20 Table 2.2 - Number of electrodes being displayed2-21 Hydrastep 2468CB and 2468CD Manual2.5.2.4 ‘Compatibility’ Setting 2.5.2.3‘Switching Threshold’ Setting2-22 2.6FAULT ANALYSIS & CORRECTIVE ACTION 2-23Indication Faults2-24 Analysis and Corrective Action2-25 Indication2-26 IndicationIndication Faults2-27 Analysis and Corrective ActionIndication Faults2-28 Analysis and Corrective Action2-29 Indication2.6.1.1Removing the Input Board 24680501 or 2.6.1COMPONENT REPLACEMENT2-30 2.6.1.2Refitting the Input BoardItem Description 2.6.2PARTS LIST - HYDRASTEP 2468 CB & CD VERSIONS2-31 MobreySPECIFICATION 2-322-WD.1 Wiring Diagrams for Dual Power Supply VersionContents Page NoHydrastep 2468CB and 2468CD Manual Wiring Diagrams for Dual Power Supply Version2-WD.2 246850342-WD.3 Wiring Diagrams for Dual Power Supply Version24685034 Hydrastep 2468CB and 2468CD Manual Wiring Diagrams for Dual Power Supply Version2-WD.4 246850342-WD.5 24685034Hydrastep 2468CB and 2468CD Manual Wiring Diagrams for Dual Power Supply Version2-WD.6 246850342-WD.7 24685034Hydrastep 2468CB and 2468CD Manual Wiring Diagrams for Dual Power Supply Version2-WD.8 246850342-WD.9 2468503424685034 2-WD.10Hydrastep 2468CB and 2468CD Manual 2-WD.11 24685034Hydrastep 2468CB and 2468CD Manual Wiring Diagrams for Dual Power Supply Version2-WD.12 246850342-WD.13 24685034Hydrastep 2468CB and 2468CD Manual Wiring Diagrams for Dual Power Supply Version2-WD.14 246850342-WD.15 24685034Hydrastep 2468CB and 2468CD Manual Wiring Diagrams for Dual Power Supply Version2-WD.16 24685034Contents 2468 - Relay Output Board Option3a-1 3a-7 3a-224685034 3A.1 GENERAL DESCRIPTION 3A.2 INSTALLATION3a-3 3a-4 3a.2.3.1 PCB Interconnections 3A.2.3 ELECTRICAL INSTALLATION3a-5 3a.2.3.2 Relay Output Connections3A.3 RELAY BOARD CONFIGURATION 3a-63a-7 3a.3.1.1 Configuring the Relay Output Board3A.3.1 RELAY OUTPUT BOARD 3a-8 3a-9 3A.3.2 ALARM AND TRIPPING FACILITIES3a.3.2.1 Philosophy 3a-10 3a-11 3a-12 3a-13 3a-14 3A.4 COMPONENT REPLACEMENT 3a-153A.5 SPECIFICATION 3a-16Contents Delay Relay Output Board Option3b-1 3B.5 SPECIFICATION3b-2 246850343B.1 GENERAL DESCRIPTION 3B.2 INSTALLATION3b-3 3b-4 3b.2.3.1 PCB Interconnections 3B.2.3 ELECTRICAL INSTALLATION3b-5 3b.2.3.2 Relay Output Connections3B.3 DELAY RELAY BOARD CONFIGURATION 3b-63b.3.1.1 Configuring the Delay Relay Output Board 3B.3.1 DELAY RELAY OUTPUT BOARD3b-7 3b-8 3b-9 3b.3.1.6 Delay Circuit Configuration24685034 3b.3.1.7 Configuring the Delay Circuit Split Pads 3b-103b-11 3B.3.2 ALARM AND TRIPPING FACILITIES3b.3.2.1 Philosophy 3b-12 3b-13 3b-14 3b-15 3b-16 3B.4 COMPONENT REPLACEMENT 3b-173B.5 SPECIFICATION 3b-182468 Opto-isolatedOutput Board Option Contents3c-2 IllustrationsTables 246850343C.1 GENERAL DESCRIPTION 3C.2 INSTALLATION3c-3 3c-4 3c-5 3c.2.3.2 Opto-IsolatedOutput Connections3C.3 OPTO-ISOLATEDOUTPUT BOARD CONFIGURATION 3c-63c-7 3c-8 3c-9 3C.3.2 ALARM AND TRIPPING FACILITIES3c.3.2.1 Philosophy 3c-10 3c-11 3c-12 3c-13 3C.4 COMPONENT REPLACEMENT 3c-143c-15 3C.5 SPECIFICATION24685034 Hydrastep 2468CB & 2468CD Manual 3c-16Opto-isolatedOutput Board Option 24685034Remote Display Options 24683B, C, & D ContentsFigure 4.1REMOTE DISPLAY OPTIONS 4.2CONFIGURATION 4.2.2RECONFIGURING THE 24683D REMOTE DISPLAY 4.3MECHANICAL INSTALLATION 4.3.2INSTALLING THE 24683D WALL MOUNTED UNIT4.4ELECTRICAL INSTALLATION comply with the EMC directiveStar 4.4.1STAR AND DAISY CHAIN CONNECTIONSDaisy Chain 4.4.2EXAMPLE OF A ‘STAR CONNECTED’ SYSTEM 4.4.3EXAMPLE OF A `DAISY CHAIN SYSTEM 4-104-11 4.4.4CONNECTING CABLES TO THE REMOTE DISPLAYService Terminal4.4.5CONNECTING THE DISPLAY CABLES TO HYDRASTEP 4-12Fault 4.6FAULT ANALYSIS AND CORRECTIVE ACTION4.5SYSTEM OPERATION 4-13Bottom half of fault 4-144-15 Flickering DisplayItem 4.7COMPONENT REPLACEMENT4-16 Mobrey Part NumberPOWER SUPPLY 4.8SPECIFICATIONDIMENSIONS REMOTE DISPLAY UNITSHydrastep 2468CB & 2468CD Manual 4-18Remote Display Options 24683B, C & D 24685034Hydrastep Pressure Parts Operating ManualPt.2-2 24675030Part 2 - Pressure Parts About this manualPt.2-3 Pt.2-4 24675030CORRECT R E M I N D E RELECTRODE INSTALLATION INCORRECTPt.2-6 24675030N O T I C E Pt.2-7Pt.2-8 24675030Unit Specifications - Hydrastep Part 2 - Hydrastep Pressure PartsInstallation Procedures Fault Repair and CommissioningPt.2-10 24675030WATER LEVEL INDICATION General IntroductionPRINCIPLE OF OPERATION Illustrations24675030 General IntroductionHydrastep Pressure Parts 1.1PRINCIPLE OF OPERATION 1.2WATER LEVEL INDICATIONGeneral Introduction 2467503024675030 General Introduction24675030 General IntroductionHydrastep Pressure Parts SCOPE OF PROCEDURES Installation ProceduresContents INSTALLATION OF WATER COLUMN24675030 Installation ProceduresHydrastep Pressure Parts 2.2STORAGE 2.1SCOPE OF PROCEDURES2.3INSTALLATION OF WATER COLUMN 2.2.4HANDLING PRECAUTIONSdiscarded Figure 2.1 - Universal weld profile 2.4INSPECTION OF MECHANICAL INSTALLATION WORK Installation Procedures 24675030Figure 2.3 - Typical water column suspension Installation Procedures24675030 BACKGROUND Fault Repair and CommissioningContents WATER COLUMN COMMISSIONING OR RECOMMISSIONING24675030 Fault Repair and CommissioningHydrastep Pressure Parts 3.1BACKGROUND 3.1.1SAFETY PRECAUTIONS3.1.3ELECTRODE AND ELECTRODE SEAL LEAKS 3.1.2WATER COLUMN ISOLATION3.1.3.1Low Pressure Electrodes 3.1.3.2High Pressure Electrodes 3.2WATER COLUMN COMMISSIONING OR RECOMMISSIONING 3.2.1VENT AND DRAIN VALVE REPAIRS3.2.3WATER COLUMN OR PIPEWORK BLOCKAGE 3.2.2WATER COLUMN TRANSIENT RESPONSE3.2.4WATER COLUMN LIFE 24675030 Fault Repair and CommissioningHydrastep Pressure Parts Unit Description ContentsHydrastep Pressure Parts Unit Description24675030 4.1LOW PRESSURE ELECTRODES Figure 4.1 - Low pressure electrode4.2HIGH PRESSURE ELECTRODES Figure 4.2 - High pressure electrode4.3WATER COLUMN L.P 4.4WATER COLUMN H.P 4.5WATER COLUMN H.P. SUPERCRITICAL Hydrastep Pressure Parts Unit Description24675030 Unit Specifications - Hydrastep 5.1ELECTRODESSeries 5.2WATER COLUMNSSuper Electronic Gauging System PartHydrastep 2468CA, CB, CC & CD Pt.3-1Pt3-2 CSA Certified A.1 GENERALHydrastep 2468 - Technical Manual Page Appendix A: CSA Approval Page Operating Manual HydrastepEmerson Process Management Mobrey Ltd