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DURAG D−LX 200 Manual
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DURAG D−LX 200 Manual

Compact flame monitor
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D−LX 200
D−LX 720
Compact Flame Monitor
GmbH · Kollaustraße 105 · 22453 Hamburg · www.durag.de

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Summary of Contents for DURAG D−LX 200

  • Page 1 D−LX 200 D−LX 720 Compact Flame Monitor GmbH · Kollaustraße 105 · 22453 Hamburg · www.durag.de...
  • Page 2 All rights reserved. DURAG creates the German original version of this operation handbook and the English translation of the original version. DURAG checks for the correctness of these editions For all other language specific versions DURAG GmbH takes no responsibility.
  • Page 3 Contents Contents Foreword General Brief overview of the contents Typographical conventions Meaning of the warnings and notes used Safety Instructions General safety instructions Hazard from electrical equipment Hazard from hot, aggressive or explosive gases Hazard to the device due to purge air failure Proper use Prevention of consequential damages in the event of system malfunction Qualified personnel...
  • Page 4 Technical data for the integrated flame sensor 10.4 Presettings Plans and Drawings for D−LX 200, D−LX 720 11.1 Wiring diagram D−LX 200, D−LX 720 11.2 Dimensional drawings Declaration of conformity Glossary Index DURAG GROUP company addresses D−LX 200, D−LX 720...
  • Page 5 Contents Index of illustrations Figure 4.1: System overview D−LX 200 ....................33 Figure 4.2: System overview D−LX 720 ....................33 Figure 4.3: Block diagram........................34 Figure 4.4: D−LX 200 ..........................36 Figure 4.5: Exploded drawing D−LX 200....................38 Figure 4.6: Exploded drawing D−LX 720....................39 Figure 5.1: Safety screw ..........................
  • Page 6 Contents Table 8.7: Modbus FunctionCode(0x03..0x04) Read 16BitRegisters Response ........86 Table 8.8: Modbus FunctionCode(0x10) Write Multiple 16BitRegisters Request ........87 Table 8.9: Modbus FunctionCode(0x10) Write Multiple 16BitRegisters Response ........ 87 Table 8.10: Modbus register and address information................88 Table 8.11: Modbus register and device-specific address information ............ 89 Table 9.1: Error messages ........................
  • Page 7 Flame monitors are safety devices and are designed to ensure the safe operation of a furnace plant. The adjustment of flame monitors should therefore only be performed by appropriately trained personnel. DURAG offers suitable training for this purpose. Should you have any further questions on products or applications from the DURAG GROUP, please use our Support &...
  • Page 9 D−LX 200 D−LX 720 Compact Flame Monitor General Brief overview of the contents Typographical conventions Meaning of the warnings and notes used...
  • Page 11 If you require further information or if problems occur which are not dealt with in sufficient detail in this document, please ask your competent DURAG GmbH representative for the required information (see page 115).
  • Page 12 General Typographical conventions In order to make the text of this manual clear, text elements such as safety instructions, warnings, tips, keyboard symbols, menu addresses etc. are displayed differently. The following conventions apply in this manual: Safety instructions and warnings appear as follows in this manual: WARNING Danger from electrical equipment Before removing the housing or accidental-contact protection, the equipment...
  • Page 13 General WARNING Failure to comply with instructions highlighted in this way can result in serious injuries or damage to property. > Comply with all warnings, in order to prevent injuries and to ensure safe operation of the system. CAUTION Failure to comply with instructions highlighted in this way can result in minor injuries or damage.
  • Page 15 D−LX 200 D−LX 720 Compact Flame Monitor Safety Instructions General safety instructions Hazard from electrical equipment Hazard from hot, aggressive or explosive gases Hazard to the device due to purge air failure Proper use Prevention of consequential damages in the event of system malfunction Qualified personnel...
  • Page 17 They serve to avert dangers to life and limb of users and maintenance personnel and to prevent damage to property. General safety instructions The DURAG Compact Flame Monitor D−LX 200, D−LX 720 is in accordance with the current state of technology and the recognized technical safety regulations, nevertheless hazards can arise.
  • Page 18 Cables should be laid so that risk of accident due to tripping or getting caught on the lines is excluded. We recommend a power supply that guarantees a safe separation between primary and secondary power circuits (e.g. DURAG D-NG 24/05). CAUTION Damage to electronic components through electrostatic discharge (ESD) Electronic components are becoming ever smaller and more complex.
  • Page 19 Safety Instructions WARNING Never touch parts that could be hot without temperature-resistant safety gloves Hazard to the device due to purge air failure CAUTION The purge air serves to protect the system mounted on the boiler. It shields the components from hot and/or aggressive gases and dusts. The purge air supply must therefore be reliably ensured even when the system is stationary.
  • Page 20 Safety Instructions Proper use The DURAG D−LX 200, D−LX 720 described in this manual is an Compact Flame Monitor for monitoring gas, oil, coal and wood flames. The D−LX 200, D−LX 720 is used as a flame monitor, for example in large power stations through to smaller district heating plants, chemical process or thermal exhaust gas incineration plants, refineries etc..
  • Page 21 Adequate knowledge of the system D−LX 200, D−LX 720. DURAG offers suitable training for this purpose. On the basis of this training, qualified personnel are authorised by the person responsible for the safety of people and system to carry out work on DURAG equipment or systems, ...
  • Page 23 D−LX 200 D−LX 720 Compact Flame Monitor Product Description Notes on delivery Scope of supply / Design variants Special accessories (optional) Options 3.4.1 Optional, factory settings Notes on the product Fields of application, intended use Selection criteria for Compact Flame Monitor D−LX 200, D−LX 720 Conformity/Approvals Identification of the product 3.10...
  • Page 25 Verify the shipment for completeness and undamaged condition. All transport damages must be immediately reported to the shipping agent and the DURAG GROUP. For addresses see page 115 (DURAG GROUP company addresses). Scope of supply / Design variants Scope of supply of the standard system D−LX 200, :D−LX 720...
  • Page 26 Product Description Special accessories (optional) D−LX 200 D−LX 720 Picture Order code D-ZS 033 – I Swivel mount with G 1¼ " threaded end fitting D-ZS 133 – I Ball-type valve with G 1¼ " threaded end fitting D-ZS 093 Combined test light source 230 V / 50 Hz for the UV-A, UV-B and IR range for checking the function...
  • Page 27 Product Description Options 3.4.1 Optional, factory settings The Compact Flame Monitor D−LX 200, D−LX 720 can be supplied with the options specified in the following table. The variant supplied as standard has a dark background. If other options are required, please specify when ordering the Compact Flame Monitor.
  • Page 28 Product Description  Recirculating operation  Claus plants etc. The parameters specified in the Technical data from page 101 must be complied with and observed. In particular, please note:  Permissible ambient temperature: - 40°C to + 85°C  Class of protection IP 68 Selection criteria for Compact Flame Monitor D−LX 200, D−LX 720...
  • Page 29 Product Description The D−LX 200, D−LX 720 is available with different approvals. An overview is provided in the following table: D−LX 200 … D−LX 720 … IEC 61508      under preparation Table 3.3: Device approvals The declaration of conformity can be found in the Appendix from page 107. D−LX 200, D−LX 720...
  • Page 30 Please note that the contents of this device manual are not part of nor intended to modify a previous or existing agreement, undertaking or legal relationship. The warranty for equipment from the DURAG GROUP is generally 12 months from the date of delivery. All obligations result from the respective purchase contract, which also contains the complete and solely valid warranty regulation.
  • Page 31 D−LX 200 D−LX 720 Compact Flame Monitor Design and Function Functional description 4.1.1 Ultraviolet flame sensor 4.1.2 Infrared flame sensor 4.1.3 Self-monitoring 4.1.4 Error shutdown Device description...
  • Page 33 Design and Function Design and Function This chapter explains the mode of operation of the Compact Flame Monitor and the interaction of the components involved. Functional description The Compact Flame Monitor D−LX 200, D−LX 720 comprises an optical flame sensor and a control unit in one housing. The flame sensor converts the light signal of the flame into an electrical signal, while the control unit ensures self- monitoring, evaluates the flame signal and communicates the result.
  • Page 34 Design and Function passes through a two-channel (Chan. 1 and Chan. 2) microcontroller- adjustable amplifier with filter stages. Both the static and the dynamic portion of the flame radiation are available for evaluation at the output. The range selection enables switching of the flame monitor settings to another parameter set (intensity and frequency switching threshold, current gain characteristic).
  • Page 35 Design and Function spectral range of = 280 nm to 410 nm, which provides better results in the case of very intensive UV radiation or higher selectivity requirements. The filter is opaque in the visible spectral range, and therefore appears black to the human eye.
  • Page 36 Design and Function The throughout dual-channel design (see Figure 4.3: Block diagram on page 34) allows the elimination of regular interruption of the photoelectric current (shuttering) and mechanical wearing parts. 4.1.4 Error shutdown If an error is detected in the safety-relevant software and hardware components during internal self-monitoring of the flame monitor, an error shutdown and internal lockout must be triggered.
  • Page 37 Design and Function  Switching for the range selection which enables switching of the flame monitor to another parameter set (intensity and frequency switching threshold, gain characteristic),  8 selectable current gain characteristic curves per range,  Switchable highpass filter for adaptation to the combustion conditions, ...
  • Page 38 Design and Function Description Housing front part with printed circuit boards Gasket Screw M4 x 130 Lens insert module Connection nut D-LE 103/603 Front part thread G 1¼", optional: () NPT 1¼" female M4 Safety screw Hood Purge air connection thread G ½", optional: () NPT ½" female Cable gland for connection cable Figure 4.5: Exploded drawing D−LX 200 D−LX 200, D−LX 720...
  • Page 39 Design and Function Description Housing front part with printed circuit boards Gasket Screw M4 x 130 Hood Cable gland for connection cable Fibre-optic adapter Figure 4.6: Exploded drawing D−LX 720 D−LX 200, D−LX 720...
  • Page 40 Design and Function The display LEDs in the inspection window on the back of the device have the following meanings: Intensity (green) ➀ The flame intensity exceeds the set threshold for intensity. Switch Error (red) For at least one of the settable parameters, the switch setting for ➁...
  • Page 41 D−LX 200 D−LX 720 Compact Flame Monitor Installation, Commissioning Safety Transport Installation 5.3.1 Instructions on selecting a suitable installation point 5.3.2 Mounting the flange 5.3.3 Electrical connection 5.3.4 Cables and shielding 5.3.5 Installation, purge air supply Commissioning...
  • Page 43 CAUTION Damage to electronic components through electrostatic discharge (ESD) DURAG devices are protected from uncontrolled electrostatic discharge (ESD) during closed operation. If the device is opened (e.g. for service or maintenance works), then suitable ESD protective measures must be undertaken beforehand.
  • Page 44 Installation, Commissioning Transport Avoid rough impacts. Use the original packaging for transport where possible: The mouldings used in it ensure safe transport. Installation 5.3.1 Instructions on selecting a suitable installation point The correct viewing position must be determined in order to guarantee optimal and selective flame monitoring.
  • Page 45 Installation, Commissioning Dimensional drawing of swivel mount D-ZS 033-I Flame sensor Flammenfühler G 1¼” Viewing pipe Flame Sichtrohr Flamme Figure 5.2: Dimensional drawing of swivel mount (optional for D−LX 200) D-ZS 033-I Legend: Pos. Quantity Designation Material Welding flange 1.0718, galvanised surface Flange Aluminium, alloy 230 Ball joint...
  • Page 46 In order to exclude possible disturbances due to transient currents on the protective conductor (e.g. currents from an ignition device to protective conductor potential), DURAG D-ZS 117-I insulators can be inserted between the sighting tube and the flame monitor. In this case the tube or hose line for the purge air connection of the flame monitor must also comprise non- conductive material.
  • Page 47 Installation, Commissioning Once mounted and connected in accordance with the dimensional drawings and wiring diagram, the D−LX 200, D−LX 720 compact flame monitor is ready for operation as soon as the mains voltage is switched on. The connection cable is wired inside the device housing at the factory. The connections can be finished as shown in the following diagram.
  • Page 48 Installation, Commissioning Over short distances (< 5m) the lines are unsusceptible to interference and do not need to be protected. The single wires can be defined according to the system-specific requirements. The cross-section for the 24 V DC supply line must be large enough to ensure that R = 10 ...
  • Page 49 Installation, Commissioning Differential Pressure of Purge Air (hPa) re of Purge Air (hPa) Differenzdruck der Spülluft (hPa) Figure 5.6: Volume flow depending on the purge air Figure 5.6: Volume flow depending on the purge air If necessary, the purge air supply must be reliably ensured even during If necessary, the purge air supply must be reliably ensured even during downtime of the plant.
  • Page 50 CAUTION Damage to electronic components through electrostatic discharge (ESD) DURAG devices are protected from uncontrolled electrostatic discharge (ESD) during closed operation. If the device is opened (e.g. for service or maintenance works), then suitable ESD protective measures must be undertaken beforehand.
  • Page 51 D−LX 200 D−LX 720 Compact Flame Monitor Adjusting the Flame Monitor Adjusting the thresholds Setting the gain characteristic curve Range selection Setting the Modbus address Setting process 6.5.1 Setting by means of current output/LED 6.5.2 Setting by means of D−LX 200 InformationCentre Safety time...
  • Page 53 You can find information on the evaluation software in chapter 7 from page 69. If you have any further questions on the evaluation software, please use our Support & Service. The addresses and telephone numbers for your DURAG GmbH representative can be found on page 115 (DURAG GROUP company addresses).
  • Page 54 Adjusting the Flame Monitor For ideal adaptation of the Compact Flame Monitor to the local combustion conditions, different gain characteristics can also be selected for automatic current gain adaptation by means of (  ) DIP switches. The switches for the intensity (Intens.) and flame flicker frequency (Freq.) are located on printed circuit board no.3, and the DIP switches for selecting the gain characteristic are located on printed circuit board no.2.
  • Page 55 Adjusting the Flame Monitor Chan. 2 Chan. 1 No. 3 Figure 6.2: Front panel D−LX 200 The rotary switches located above each other (Figure 6.2: rotary switches with identical hatching) must be set to the same position within 8s. If there are any differences between the channels/rotary switches, the red "Switch Error"...
  • Page 56 Adjusting the Flame Monitor Figure 6.4: Flicker frequency setting [Hz] of the flame For the flame flicker frequency threshold, switch position 0 (zero) means deactivation of the threshold. The detection of periodic signals is also switched off. With a switch position > 0 (zero), a threshold is defined. The flicker frequency measured at the flame must exceed this threshold to produce a Flame ON signal (see Figure 6.4).
  • Page 57 Adjusting the Flame Monitor Setting the gain characteristic curve A characteristic feature of the D−LX 200, D−LX 720 is the automatic adaptation of the internal gain to the signal strength of the flame. The sensitivity of the gain adaptation can be precisely matched to the relevant combustion process (by preselecting the correct gain characteristic curve).
  • Page 58 Adjusting the Flame Monitor Figure 6.6: PCB no.2, () DIP switches S3 and S4 Gain Range A Range B Switches S3 and S4 characteristic Switch position Switch position curve DIP position* V7** DIP positions 1 and 2 must not be changed! (see 6.6 page 64) Presetting at delivery Table 6.1: Setting MODE switches S3 and S4 When setting the gain characteristic curve, you must ensure that MODE...
  • Page 59 Adjusting the Flame Monitor Range selection The purpose of range switching is to be able to use the ideal presettings to detect the flame signal for two different operating states of the burner (e. g. gas and oil operation). Relevant presettings are the thresholds for intensity and flame flicker frequency, as well as the gain characteristic curve.
  • Page 60 Adjusting the Flame Monitor  The flame intensity current is less than 5mA (0-20mA) or 8mA (4-20mA)  The value of the flame intensity display in the D−LX 200 evaluation software is less than 25%  The relay output for the Flame ON signal is open Flame ON settings: When the burner is switched on, the flame monitor must always exceed the set thresholds and indicate "Flame ON".
  • Page 61 Adjusting the Flame Monitor Start Basic setting (rotary/gain switch) Gain characteristic curve = V8 all rotary switches = 0 Burner "OFF" (Background radiation monitoring) "Reduce" Current output gain characteristic curve < 5/8 mA (see gain characteristic " Flame " LED OFF curve settings) (Background radiation adaptation) Has the...
  • Page 62 Adjusting the Flame Monitor As far as possible, make the settings on the flame monitor so that the monitor indicates 0 or 4 mA for Flame OFF and 20 mA for Flame ON. The flame monitor must prevent simulation of a flame in all operating states and under the most diverse combustion conditions.
  • Page 63 Adjusting the Flame Monitor Start Basic setting (rotary/gain switch) Gain characteristic curve = V8 all rotary switches = 0 Burner "OFF" (Background radiation monitoring) "Reduce" Flame Intensity gain characteristic curve < 25 % (see gain characteristic " Flame " LED OFF curve settings) (Background radiation adaptation) Has the...
  • Page 64 The adjustment of flame monitors should also only be performed by appropriately trained personnel, in the interest of safety. DURAG offers suitable training for this purpose. Particular care must be taken not to change switch positions 1 and 2 (see Figure 6.6 and Table 6.1 on page 58) when setting the gain characteristic...
  • Page 65 Adjusting the Flame Monitor Safety time Switches S3 and S4 Switch position DIP position* DIP positions 1 and 2 must be set in accordance with the safety time noted on the type plate! Table 6.2: Setting MODE switches S3 and S4 To avoid an error shutdown, MODE switches S3 and S4 must be set to the same position within 8s.
  • Page 67 D−LX 200 D−LX 720 Compact Flame Monitor D−LX 200 InformationCentre PC Version System requirements Installation Start / Execute 7.3.1 Flame Information 7.3.2 Flame Sensor Signal 7.3.3 System Settings Pull-down menus 7.4.1 File 7.4.2 Connection 7.4.3 Option Error messages Structure of the stored data records...
  • Page 69 The D−LX 200, D−LX 720 evaluation software "D−LX 200 InformationCentre" is designed to display and store the date of these devices. Originally developed for DURAG Service technicians, the configuration help is now also available to enable effective and time-saving performance of adjustment tasks.
  • Page 70 D−LX 200 InformationCentre PC Version Use this entry to call up the program. The following screen appears on the monitor. Figure 7.1: InformationCentre front screen The indicator field "D-LX 200 connected" indicates whether a connection has been made. If so, this field lights up green. If it remains red, although a D−LX 200, D−LX 720 connected...
  • Page 71 D−LX 200 InformationCentre PC Version After selecting the "Connection" menu the following screen appears: Figure 7.2: "Connection" menu of the InformationCentre If the connection has been successfully established, the program changes to the following display: Figure 7.3: Display view of the InformationCentre The actual data transfer from the D−LX 200, D−LX 720 is initiated with the "Start"...
  • Page 72 D−LX 200 InformationCentre PC Version 7.3.1 Flame Information The display screen for the "Flame Information" shows the graphs "Intensity", "Frequency" and "Flame Intensity". Figure 7.4: Display view Flame Information Intensity The "Intensity" value is the integral of the alternating component of the flame signal with inclusion of the gain factor.
  • Page 73 D−LX 200 InformationCentre PC Version 7.3.2 Flame Sensor Signal The view shows the current setting for the internal amplifier stages (ACvu and DCvu), the signal for a measuring cycle(AC signal) and the DC signal (DC signal of the flame / continuous light portion of the flame radiation). The values for "Intensity", "Frequency", "Flame Intensity"...
  • Page 74 D−LX 200 InformationCentre PC Version 7.3.3 System Settings The "System Settings" display shows all static and parameterizable values, such as the threshold values for "Threshold Intensity" and "Threshold Frequency", the "Safety Time", the current output (0-20 / 4-20mA), the serial number, the device type, the interface setting, the firmware versions and the default file in which data is saved when the "Rec."...
  • Page 75 D−LX 200 InformationCentre PC Version Pull-down menus 7.4.1 File The "File" menu is divided into 3 submenus, "SelectFile", "FileSetting" and Exit (see Figure 7.7). Under "SelectFile" you can set the path and the file in which data will be saved. Figure 7.7: "File"...
  • Page 76 CurrentOutput". Service The "Service" function is undocumented and reserved for the specially trained DURAG Service personnel. Adjust CurrentOutput The D−LX 200, D−LX 720 has a current output of 0-20mA. This can be set to 0-20mA or 4-20mA using the DIP switch in the device (see Table 6.2 from page 65).
  • Page 77 D−LX 200 InformationCentre PC Version Error messages In the event of an error shutdown an extra window opens, in which the error numbers and, if available, the error plain text messages can be displayed. The program continues to update the data. As the D−LX 200, D−LX 720 has gone into the so-called error position (red "Error"...
  • Page 78 D−LX 200 InformationCentre PC Version 128 AD values free 32 8bit parameters Param(01) AD values minimum Param(02) AD values maximum Param(03) AD values mean Param(04) Free Param(05) DC signal MC2 Param(06) DC signal MC1 Param(07) Max. frequency Param(08) Intensity 16bit (High-Byte) Param(09) Intensity 16bit (Low-Byte) Param(10)
  • Page 79 D−LX 200 InformationCentre PC Version FLW-Status Information MC1 Param(19) Param(20) Free Param(21) Free Param(22) Free Param(23) Harmonic detection 00..50 Param(24) Free Switch position/Limits Range A Param(25) Frequency [A] Frequency [A] Switch position/Limits Range B Param(26) Frequency [B] Frequency [B] FLW config info Param(27) SSL-B SSL-B...
  • Page 81 D−LX 200 D−LX 720 Compact Flame Monitor Modbus Hardware and boundary conditions Setting the Modbus slave address Modbus DURAG Modbus DataMap...
  • Page 83 Modbus implementation for the D−LX 200, D−LX 720. This description therefore does not provide complete information on all areas of the Modbus protocol. General information on Modbus and the DURAG Modbus can be found in the separate DURAG Modbus...
  • Page 84 Modbus Figure 8.1: PCP no.4, jumper X2" Termination ON Termination OFF** **Preset at delivery Table 8.1: Setting the jumper X2 The Modbus slave address of the D−LX 200, D−LX 720 flame monitor can be set to Modbus slave addresses 1 to 64 with mode switch S5 (printed circuit board no.2) (i.e.
  • Page 85 Modbus (8E1) 1 start bit, 8 data bits, Even-Parity and 1 stop bit with data transfer rates 9600bps and 19200bps. The address is set according to the following table: Switch position Description Switch position Current Modbus slave address output DIP position* 0…20mA 4…20mA reserved*...
  • Page 86 Modbus The D−LX 200, D−LX 720 flame monitor supports the following Modbus FunktionCodes: FunctionCode FunctionCode description Read holding register (16Bit) Read input register (16Bit) Write Single Register (16Bit) Write Multiple Register (16Bit) Table 8.5: Modbus FunktionCode If an invalid Modbus query is sent to the D−LX 200, D−LX 720 , it will send a corresponding Exception Message as Modbus response, e.g.
  • Page 87 Modbus Modbus FunctionCode(0x10) Write Multiple 16BitRegisters (for details see Modbus Specification) Request Slave Address 1 byte 0, 1..254 FunctionCode 1 byte 0x10 Starting Address 2 bytes 0x0000 to 0xFFFF Quantity of… 2 bytes …Registers 0x0001 to 0x007D Byte count of… 1 byte …Registers 2 x N*...
  • Page 88 9600bps[0]/19200bps[1] Table 8.10: Modbus register and address information The parameters described below and the Modbus registers for the flame monitor D−LX 200, D−LX 720 are contained in the "device-specific" address space of the DURAG Modbus DataMap. D−LX 200, D−LX 720...
  • Page 89 Modbus Note* Register Register Modbus Register Content Parameter Description Quantity Addr.[dec/hex] DEVICE SPECIFIC AREA Data record identifier 2049 0..65000 0801 Analogue current gain MC1&MC2 2050 MC1: ACvu | DCvu MC2: ACvu | DCvu 0802 DC signal MC1 2051 0..255 0803 DC signal MC2 2052 0..255...
  • Page 90 Modbus *Explanation of the parameters Analogue current gain AC Gain (ACvu) [0..8] DC Gain (DCvu) [0..3] Threshold Frequency [0..15] Intensity [0..15] G Gain characteristic curve Gain Characteristic for Range A and B () Safety time This parameter contains the set safety time 1,2,3,5 seconds as BCD value, and the current flame OFF safety time (SicherheitsZeitFlammenAbmeldung) is also specified.
  • Page 91 Modbus AD values These registers contain 128AD values with the digitized flame sensor raw signal information Register Register … 2069 / 0815 2132 / 0854 … … AD126 AD127 D−LX 200, D−LX 720...
  • Page 93 D−LX 200 D−LX 720 Compact Flame Monitor Maintenance Customer service information Safety Maintenance intervals Maintenance tasks Fault 9.5.1 Error messages 9.5.2 Warning of different switch position 9.5.3 Harmonic detection...
  • Page 95 Customer service information If desired the maintenance can also be undertaken by DURAG GmbH. We would be happy to explain the advantages of a maintenance contract for your company. The D−LX 200, D−LX 720 can also be commissioned by DURAG.
  • Page 96 Maintenance Maintenance intervals The D−LX 200, D−LX 720 is a low-maintenance Compact Flame Monitor with system-dependent maintenance intervals, which must be defined by the operator. They depend on:  the dust in the combustion air  the type of fuel ...
  • Page 97 8 x or more Internal error Note the number of flashing signals; Contact DURAG Service; Probably no repair possible on-site. Table 9.1: Error messages Actuation of the reset key above the LEDs acknowledges a device fault and generally permits continuation of the flame monitor function after a restart. All LEDs go out when the reset key is pressed.
  • Page 98 Maintenance 9.5.3 Harmonic detection The D−LX 200, D−LX 720 can perform a () harmonic detection for safety purposes. During this process, the Compact Flame Monitor observes the behaviour of the measured flicker frequency over time. The flicker frequency of a combustion process fluctuates. The measurement of a constant flicker frequency over several seconds, on the other hand, indicates an artificial light source, for example.
  • Page 99 Factory settings (default) 10.3 Technical data for the integrated flame sensor 10.4 Presettings Plans and Drawings for D−LX 200, D−LX 720 11.1 Wiring diagram D−LX 200, D−LX 720 11.2 Dimensional drawings Declaration of conformity Glossary Index DURAG GROUP company addresses...
  • Page 101 Technical Data Technical Data 10.1 Technical data of the basic device Dimensions (incl. sighting tube approx. 80 x 80 x 250 mm and purge air connection) Weight approx. 1.2 kg Permissible ambient -40°C to +85°C temperature Intermittent operation, continuous operation and Permissible operating mode 72-hour operation in accordance with () TRD 604 Safety time...
  • Page 102 Technical Data 10.2 Factory settings (default) "Flame intensity" current output 4 - 20 mA Safety time 1 sec. Table 10.2: Factory settings (default) If no special specifications are provided with the order, the D−LX 200, D−LX 720 is delivered with the above-specified default settings. These settings may only be changed in the factory and must be noted on the type plate.
  • Page 103 Plans and Drawings for D−LX 200, D−LX 720 Plans and Drawings for D−LX 200, D−LX 720 11.1 Wiring diagram D−LX 200, D−LX 720 D-NG 24/05 Mains Netz Mains Netz blue blau Protective earth Fuction earth Schutzleiter grün/gelb AC power supply Funktionserde AC-Netzversorgung orange...
  • Page 104 Plans and Drawings for D−LX 200, D−LX 720 11.2 Dimensional drawings 11.2.1 D−LX 200 Figure 11.2: Dimensional drawing D−LX 200 D−LX 200, D−LX 720...
  • Page 105 Plans and Drawings for D−LX 200, D−LX 720 11.2.2 D−LX 720 Figure 11.3: Dimensional drawing D−LX 720 D−LX 200, D−LX 720...
  • Page 107 Declaration of conformity Declaration of conformity EG-Konformitätserklärung EC Declaration of Conformity Hersteller Manufacturer: DURAG GmbH Anschrift Address: Kollaustr. 105, 22453 Hamburg Produktbezeichnung Product description: Compact Flame Monitor D−LX 200, D−LX 720 D−LX 200, D−LX 720 Compact Flame Monitor Das bezeichnete Produkt erfüllt die Anforderungen The described product complies with the folgender europäischer Normen und Richtlinien,...
  • Page 108 Declaration of conformity D−LX 200, D−LX 720...
  • Page 109 Glossary Glossary Background radiation influence boards) to perform defined basic settings. Radiation from static emitters, like The abbreviation stands for dual in-line incandescent boiler components, can be package, i.e. a configuration with two modulated by combustion air currents or parallel series of connections. flue gas plumes.
  • Page 110 Glossary tapered arrangement of the thread. No connections. These connectors are usually additional sealant (e.g. Teflon tape, hemp) used in unison with twisted pair wires. is required. RS485 interface The diameters, number of starts and taper - analogous to the RS422 interface - has angle differ slightly in comparison with the been developed for serial high-speed data Whitworth...
  • Page 111 Index Index Codes for the D−LX 200, D−LX 720 97 Messages on the D−LX 200, D−LX 720 97 Error messages 77 Approvals 28 Error shutdown 36 Ball-type valve 26 Fault 96 Basic setting for setting tasks 60 Fields of application 27 Basic settings 102 Flame sensor Infrared 35...
  • Page 112 Index Installation point, suitable 44 Installation, flange 44 Range 59 Range switching 59 Reset 97 Jumper RS485 interface 110 PCB no. 4, X2 84 Junction box 26 Safety instructions, general 17 Safety screw 44 LEDs, Meaning of 40 Safety time 27, 64, 102 Location of fuses 46 Scope of supply 25 Low-NOx 109...
  • Page 113 Index Volume flow depending on the purge air 49 Warnings, spec. Electric current 13 ESD 13 Explosion 13 Warnings, gen. General warning sign 13 Average risk - Warning 13 Hot surface 13 High risk - Danger 12 Warranty 30 Minor risk - Caution 13 Wiring diagram 47, 103 Warnings, meaning.
  • Page 115 BP 70166 E-mail: info@durag.de 95691 GOUSSAINVILLE France DVN – DURAG Vertrieb Nord Tel. +33 1 30 18 11 80 ▪ Fax +33 1 39 33 83 60 Kollaustr. 105 ▪ 22453 Hamburg E-mail: info@durag-france.fr Tel. +49 40 55 42 18 – 0 ▪ Fax +49 40 58 41 54 E-mail: dvn@durag.de...
  • Page 116 GmbH · Kollaustraße 105 · 22453 Hamburg · www.durag.de...

This manual is also suitable for:

D-lx 720