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Manuals
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DURAG Manuals
Measuring Instruments
D-LX 201
Operating manual
DURAG D-LX 201 Operating Manual
Compact flame monitor
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
1 General
Information on this Manual
Explanation of Symbols
Limitation of Liability
Warranty
Spare Parts
Customer Service
Copyright
Trademarks
2 Safety
General Safety Instructions
Fundamental Hazards
Hazards Due to Electric Current
Risk of Burns Due to Hot Surfaces
Damage Due to Failure of the Purge Air
Qualified Personnel
Personal Protective Equipment
3 Explosion Protection
Basics
Classification of the Equipment Groups into Categories
Zone Allocation as Per ATEX
Temperature Classes
EPL Equipment Protection Level
Ignition Protection Categories
Pressure-Proof Encapsulation "Ex D
Ignition Protection Type "Ex N" (Gas)
Protection in the Form of an "Ex T" Housing (Dust)
Explosion Labelling
ATEX Markings
Labelling as Per NEC 500
Ex Type Label
Safety with Explosion-Proof Devices
All Devices
4 Functional Safety
Relevant Standard
Functions of the Flame Monitor
General Applicable Parameters for the Flame Monitor
Operation with Low and High Demand Modes
Operation with Low Demand Mode
Proof Test for the Low Demand Mode
Operation with High Demand Mode
5 Product Description
Notes on Delivery
Accessories
Connecting Cable
Factory Settings
Notes on the Product
Designated Use, Application Areas
Selection Criteria for D-LX 201/D-LX 721
Conformity
Name of the Product
Type Code
Notes on the Warranty
6 Configuration and Function
Functional Description
Infra-Red Flame Sensor
Ultraviolet Flame Sensor
Self-Monitoring
Error Shutdown
Device Description
D-LX 721 with Housing M5/P2
D-LX 201 with Housing M4 and S2 for Zone 1/21
Front Panel (All Types)
7 Installation and Commissioning
Safety
Transport
Installation
Notes on Selecting a Suitable Installation Site
Attaching the Flange
Opening and Closing the Housing
Removing the Plug-In Cover (Housing M5/P2)
Screwing down the Plug-In Cover (Housing M5/P2)
Removing the Cover (Housing M5/P2)
Screwing down the Cover (Housing M5/P2)
Opening Housing M4 and S2 (for Zone 1/21)
Closing Housing M4 and S2 (for Zone 1/21)
Electrical Connection
Cables and Screening
Installation, Purge Air Supply
Initial Commissioning
Dismantling and Disposal
Dismantling
Disposal
8 Flame Monitor Settings
Range Selection
Setting the Threshold for the Intensity
Selecting the Gain Characteristic Curve
Setting the Threshold for the Flicker Frequency
Setting Sequence
Aims of the Settings
Adjusting Settings Via D−LX 201 Informationcentre
Setting Using the Analogue Output/Led
Flame Failure Detection Time (FFDT)
Modbus
Hardware and Framework Conditions
Setting the Modbus Slave Address
9 Maintenance
Safety
Customer Service Information
Maintenance Intervals
Maintenance Work
Fault
Fault Messages
Warning in the Event of Different Switch Positions
Harmonic Detection
10 Appendix: Technical Data
Devices with Plastic Housing (P2)
Devices with Aluminium Housing (M5)
Devices for Zone 1/21 (Housing M4 and S2)
Sighting Tube Connection and Purge Air Connection
Factory Settings
Integrated Flame Sensor
11 Appendix: Plans and Drawings
Connection Diagram for D-LX 201/721
Connection Diagram for D-LX 201/721 MP
Dimensional Drawings
D-LX 201 with Housing P2
D-LX 201 with Housing M5
D-LX 201 Ex with Housing M4 and S2 for Zone 1/21
D-LX 721 with Housing P2
D-LX 721 with Housing M5
D-LX 721 with Housing M4 and S2 for Zone 1/21
12 Appendix: Certificates
13 Glossary
14 Index
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Quick Links
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Electrical Connection
2
Range Selection
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D-LX 201/721
Compact Flame Monitor
Before starting any work please read the operating
manual!
Article no.:
GmbH • Kollaustraße 105 • 22453 Hamburg • Germany • www.durag.com
4 015 992
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D-lx 721
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