Related Manuals for Eaton MTL7760ac
Summarization of Contents
ATEX SAFETY INSTRUCTIONS
General ATEX Compliance
Covers personnel training, general safety, and ATEX directive requirements.
Zone 2 Safe Use and Installation
Specific conditions for Zone 2 installations and safe operating practices.
Inspection, Repair, and Marking
Guidelines for maintenance, repair policy, and product marking for ATEX.
OVERVIEW
Manual Scope and Supporting Publications
Details the manual's content and lists essential supporting technical literature.
DESCRIPTION
2.1 Introduction to MTL7700 Range
Introduces the MTL7700 intrinsically safe shunt-diode safety barrier range.
2.2 MTL7700 Barrier Ranges and Applications
Describes various barrier models and their specific application areas.
2.3 MTL7700 Accessories
Lists essential accessories for mounting, tagging, and earthing the barriers.
SAFETY CONSIDERATIONS
General Requirements and Safety Checks
Outlines essential safety factors and a checklist for barrier installations.
INSTALLATION
4.1 General Installation Procedures
Basic steps for installing barriers and DIN-rail mounting.
4.2 Mounting and Removing Barriers
Detailed instructions for securing barriers to the DIN-rail and their removal.
4.3 Installing Accessories
Guides for fitting various mounting, tagging, and earthing accessories.
WIRING CONNECTIONS
5.1 General Wiring Principles
Overview of wiring connection categories and principles.
5.2 Barrier Connections
Details on connecting safe and hazardous area circuits to barrier terminals.
5.3 Plant Earth Connections
Critical procedures for safely earthing the entire barrier installation and components.
5.4 Dummy Barrier Connections
Guidelines for using dummy barriers for unused connections and testing.
MAINTENANCE
6.1 General Maintenance Information
Explains barrier robustness and the limited need for repair.
6.2 Routine Inspection Procedures
Recommends periodic visual checks to ensure installation integrity.
FAULT-FINDING
7.1 Introduction and Power Supply Checks
Overview of fault finding and power supply verification methods.
7.3 Barrier Resistance Testing
Procedure for testing barrier continuity and resistance on-site.
EQUIPMENT AND BARRIER TESTS
8.1 Thermocouple/RTD and General Barrier Tests
Covers tests for sensor circuits and general barrier testing overview.
8.2.2 Multimeter and Constant-Current Tests
Details specific test methods using multimeters and current generators.
8.3 Tests for Active Barriers
Specific testing procedures for active barrier types.
8.3.1 MTL7706+ and MTL7707+ Tests
Step-by-step test procedures for MTL7706+ and MTL7707+ barriers.
8.3.3 MTL774x Series Tests
Testing procedures for MTL774x switch/prox input barriers.
8.4 Test Tables for Passive Barriers
Reference tables detailing test parameters for passive barrier models.
APPENDIX A: TYPICAL WIRING CONNECTIONS FOR SPECIFIC APPLICATIONS
Wiring Diagrams and Application Examples
Visual guides for specific wiring configurations and application scenarios.
APPENDIX B
Maximum Cable Parameters
Tables providing cable parameter limits for IIC and IIB gas groups.
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