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D-LX 201
DURAG D-LX 201 User Manual
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8 | Flame monitor settings
D-LX 201/721
87
NOTICE
The analogue output range specified on the type label must match the range set for
the device.
The D-LX 201 InformationCentre only works with a data transfer rate of 19200 bps.
The Modbus addresses can be set very easily using the D‑LX201InformationCentre's
settings assistant, where the complete address coding can be seen.
86
88
Table of Contents
Default Chapter
3
Table of Contents
3
1 General
7
Information on this Manual
7
Explanation of Symbols
8
Limitation of Liability
10
Warranty
10
Spare Parts
10
Customer Service
11
Copyright
11
Trademarks
11
2 Safety
13
General Safety Instructions
13
Fundamental Hazards
13
Hazards Due to Electric Current
14
Risk of Burns Due to Hot Surfaces
14
Damage Due to Failure of the Purge Air
14
Qualified Personnel
15
Personal Protective Equipment
16
3 Explosion Protection
17
Basics
17
Classification of the Equipment Groups into Categories
17
Zone Allocation as Per ATEX
18
Temperature Classes
18
EPL Equipment Protection Level
19
Ignition Protection Categories
19
Pressure-Proof Encapsulation "Ex D
19
Ignition Protection Type "Ex N" (Gas)
20
Protection in the Form of an "Ex T" Housing (Dust)
21
Explosion Labelling
22
ATEX Markings
22
Labelling as Per NEC 500
22
Ex Type Label
23
Safety with Explosion-Proof Devices
25
All Devices
25
4 Functional Safety
27
Relevant Standard
27
Functions of the Flame Monitor
27
General Applicable Parameters for the Flame Monitor
28
Operation with Low and High Demand Modes
28
Operation with Low Demand Mode
28
Proof Test for the Low Demand Mode
29
Operation with High Demand Mode
30
5 Product Description
31
Notes on Delivery
31
Accessories
31
Connecting Cable
33
Factory Settings
33
Notes on the Product
34
Designated Use, Application Areas
34
Selection Criteria for D-LX 201/D-LX 721
34
Conformity
36
Name of the Product
36
Type Code
38
Notes on the Warranty
39
6 Configuration and Function
41
Functional Description
41
Infra-Red Flame Sensor
42
Ultraviolet Flame Sensor
43
Self-Monitoring
43
Error Shutdown
44
Device Description
45
D-LX 721 with Housing M5/P2
47
D-LX 201 with Housing M4 and S2 for Zone 1/21
48
Front Panel (All Types)
49
7 Installation and Commissioning
51
Safety
51
Transport
52
Installation
52
Notes on Selecting a Suitable Installation Site
52
Attaching the Flange
52
Opening and Closing the Housing
55
Removing the Plug-In Cover (Housing M5/P2)
55
Screwing down the Plug-In Cover (Housing M5/P2)
55
Removing the Cover (Housing M5/P2)
56
Screwing down the Cover (Housing M5/P2)
57
Opening Housing M4 and S2 (for Zone 1/21)
58
Closing Housing M4 and S2 (for Zone 1/21)
60
Electrical Connection
61
Cables and Screening
65
Installation, Purge Air Supply
66
Initial Commissioning
68
Dismantling and Disposal
68
Dismantling
68
Disposal
69
8 Flame Monitor Settings
71
Range Selection
72
Setting the Threshold for the Intensity
73
Selecting the Gain Characteristic Curve
75
Setting the Threshold for the Flicker Frequency
77
Setting Sequence
78
Aims of the Settings
78
Adjusting Settings Via D−LX 201 Informationcentre
79
Setting Using the Analogue Output/Led
80
Flame Failure Detection Time (FFDT)
82
Modbus
84
Hardware and Framework Conditions
84
Setting the Modbus Slave Address
84
9 Maintenance
89
Safety
89
Customer Service Information
90
Maintenance Intervals
90
Maintenance Work
91
Fault
91
Fault Messages
91
Warning in the Event of Different Switch Positions
92
Harmonic Detection
92
10 Appendix: Technical Data
93
Devices with Plastic Housing (P2)
93
Devices with Aluminium Housing (M5)
94
Devices for Zone 1/21 (Housing M4 and S2)
95
Sighting Tube Connection and Purge Air Connection
96
Factory Settings
96
Integrated Flame Sensor
97
11 Appendix: Plans and Drawings
99
Connection Diagram for D-LX 201/721
99
Connection Diagram for D-LX 201/721 MP
100
Dimensional Drawings
101
D-LX 201 with Housing P2
101
D-LX 201 with Housing M5
102
D-LX 201 Ex with Housing M4 and S2 for Zone 1/21
103
D-LX 721 with Housing P2
104
D-LX 721 with Housing M5
105
D-LX 721 with Housing M4 and S2 for Zone 1/21
106
12 Appendix: Certificates
107
13 Glossary
115
14 Index
116
4
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DURAG D-LX 201 Specifications
General
Brand
DURAG
Model
D-LX 201
Category
Measuring Instruments
Language
English
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