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VESDA

®

LaserFOCUS VLF-500 Product Guide

23

The AutoLearn Smoke LED will remain on for the duration of the AutoLearn process. At the start
of the process the alarm thresholds are set to the default values. During this learning cycle, alarm
conditions can be reported. If an alarm condition occurs (Alert or higher alarm) AutoLearn will not
complete its cycle. In this situation restart the AutoLearn process. If AutoLearn is stopped by you
or due to an alarm condition, the alarm thresholds will be left at the default settings.

Conditions during learning are assumed to be representative of normal operating
conditions.

The AutoLearn Smoke learning times range from above 15 minutes to 15 days, with the default
being set to 14 days.

If AutoLearn is running during the changeover period from Day and Night Thresholds function,
make sure that AutoLearn runs for at least an hour in both the Day and Night.

Table 6 - AutoLearn Smoke range

*For code-specific information, see

Codes and Standards Information for Air Sampling Smoke

Detection

on page iv.

AutoLearn Flow

AutoLearn Flow process is initiated by pressing the recessed button numbered 2, which is
located under the field service access door. During the AutoLearn Flow process, the VESDA
LaserFOCUS determines the average and peak air flow levels monitored over time and sets
suitable air flow thresholds that will not give rise to false flow rates due to normal flow variations
(such as might arise through air-conditioning related false alarms). The system will normalize the
flow and then monitor the flow trend to set the flow fail thresholds.

The AutoLearn Flow indicator LED will remain on for the duration of the AutoLearn process. At
the start of the process the flow thresholds are set to the default values. During this learning
cycle, alarm conditions can be reported. If a flow fault is reached, AutoLearn will not complete its
cycle. In this situation restart the AutoLearn process. If AutoLearn is stopped by you or due to a
flow fault condition, the flow thresholds will be left at the default settings.

Conditions during learning are assumed to be representative of normal operating
conditions.

The AutoLearn Flow learning times range from 15 minutes to 15 days, with the default being set
to 14 days.

VESDA System Configurator (VSC)

The VESDA System Configurator is an optional tool that allows all VESDA detectors to be
configured. All parameters can be set manually or previously saved configuration settings may
be applied. Refer to the VSC online help for details regarding the setting of these thresholds.

Alarm Level

AutoLearn Smoke Range

Alert

0.025 - 0.4 %obs/m (0.008 - 0.125 %obs/ft)*

Action

0.044 - 0.7 %obs/m (0.014 - 0.219 %obs/ft)*

Fire 1

0.063 - 1.0 %obs/m (0.020 - 0.313 %obs/ft)*

Fire 2

0.313 - 5.0 %obs/m (0.100 - 0.563 %obs/ft)*

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Содержание vesda LaserFOCUS VLF-500

Страница 1: ...LaserFOCUS VLF 500 Product Guide September 7 2007 Document Number 07209_12 Part 20297 ...

Страница 2: ...LaserFOCUS VLF 500 Product Guide VESDA ii ...

Страница 3: ...he products strictly in accordance with the User Manual and product documents available from Xtralis Xtralis is not liable to you or any other person for incidental indirect or consequential loss expense or damages of any kind including without limitation loss of business loss of profits or loss of data arising out of your use of the products Without limiting this general disclaimer the following ...

Страница 4: ...s if viewed with the naked eye Under no circumstances should the detector chamber be opened FM Hazardous Applications 3611 Hazardous Approval Warning Exposure to some chemicals may degrade the sealing of relays used on the detector Relays used on the detector are marked TX2 5V G6S 2 5V or EC2 5NU VESDA detectors must not be connected or disconnected to a PC while the equipment is powered in an FM ...

Страница 5: ...tion m and transport time less than 90 seconds For a Class C detector hole sensitivity must be better than 10 obscuration m and transport time less than 90 seconds The product is compliant with EN 54 20 flow monitoring requirements provided the following conditions are met The minor low and minor high flow thresholds should be set at 80 and 120 respectively The flow through the detector predicted ...

Страница 6: ...LaserFOCUS VLF 500 Product Guide VESDA vi ...

Страница 7: ...iring To an Address Loop Module 13 Interface card 14 RS232 Compatible serial port 14 Installation Checklist 15 Sampling Pipe Network Design 16 Single pipe network 17 Branched pipe network 18 Return air sampling return grilles 19 Installation considerations 21 Air sampling in a duct 21 Commissioning 22 General 22 AutoLearn Smoke 22 AutoLearn Flow 23 VESDA System Configurator VSC 23 Commissioning sm...

Страница 8: ...sioning Forms 42 VESDA Commissioning Form 42 LaserFOCUS VLF 500 Detector Commissioning Form 43 Display Relay Configuration 44 LaserFOCUS Relay Configuration 44 VESDAnet Interface Card VIC 010 plug in 45 VESDAnet Multi Function Relay Card VIC 020 VIC 030 plug in 45 Ancillary Devices 45 ASPIRE2 Data 46 Smoke Test 46 Air Sampling Test Results 47 Glossary 48 Frequently Asked Questions about VLF FAQs 4...

Страница 9: ...onsistent response to smoke events without being affected by false alarms General notification Note Prior to carrying out any work or maintenance on the VESDA LaserFOCUS take the necessary steps to advise the monitoring authority that power may be removed and the system disabled Caution Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector otherwi...

Страница 10: ...e 2 Dimensions of detector with mounting bracket Legend mm inches A 256 10 08 B 182 8 7 20 C 134 0 5 28 D 204 0 8 03 E 36 0 1 42 F 25 5 1 00 G 27 0 1 06 H 92 1 3 63 I 182 8 7 20 J 180 0 7 09 Legend mm inches A 236 3 9 30 B 120 0 4 72 C 4 5 0 18 D 230 0 9 06 E 100 0 3 94 F 50 0 1 97 G 40 0 1 57 ...

Страница 11: ...ic pipe installation must provide for sufficient movement in all pipework air inlet air exhaust and cable pipes to allow pipe ends to be easily fitted and removed Figure 3 Mounting location Installing the smoke detector In all installation cases the mounting bracket must be fitted upright as shown in figure 4 Mounting bracket orientation for upright and inverted mounting on page 5 Note Ensure the ...

Страница 12: ...ction of the mounting bracket mark a line across the top of the cut out if metric size pipe is used or mark a line across the bottom of the cut out if Imperial size pipe is used 3 Slide the mounting bracket down up for inverted mounting until the top of the bracket aligns with the marked line 4 Mark off and drill the 2 bracket mounting holes H 5 Screw the bracket to the wall 6 Hook the smoke detec...

Страница 13: ...e taken prior to removing the front cover from the detector For inverted mounting applications the VESDA LaserFOCUS will require the user interface display to be turned through 180 o This is carried out prior to installing the detector Also see Mounting bracket orientation for upright and inverted mounting on page 5 Inverting the user interface display F G H E A C J I B D D Legend A Air inlet port...

Страница 14: ...lace 6 Reconnect the ribbon cable and the restraining strap 7 Replace the main cover and screw down the 2 retaining screws 8 Close the field service access door The detector is now ready for inverted installation Figure 6 Inside view of the front cover as it would appear inverted Detector removal Caution Electrostatic discharge precautions need to be taken prior to removing the front cover from th...

Страница 15: ...le A at the same time push the detector base up 9 Lift the detector off the mounting bracket Once the detector has been removed re fit the front cover to keep the internal components safe from damage and the electrical cabling safe Note For inverted mounted detectors the front cover will need to be removed prior to unhooking the detector from the mounting bracket Disconnect the retaining strap and...

Страница 16: ...eatres laboratories In these cases the exhaust should be returned to the protected area Return air pipes need to be as short as possible to minimize the effect of airflow resistance in the return air pipe network Remove the fitted exhaust deflector and install a return air pipe where required The air exhaust port is tapered to accept standard pipes of OD 25 mm ID 21 mm or IPS in and provide an air...

Страница 17: ...etector shall indicate an external equipment fault condition by monitoring the line impedance An End of Line EOL resistor is supplied with the product and must be assembled in parallel with the device to be monitored The EOL resistor provides a known termination to the external equipment this allows the VLF to detect open or short circuits The detector monitors the EOL resistor see Figure 8 and re...

Страница 18: ...ed and reset on de activation of the input contact open Standby Detector is placed in standby disabled plus aspirator turned off while GPI is active contact closed and reset on de activation of the input contact open Alarm set 1 Activation of GPI forces alarm threshold set 1 to be used It overrides normal selection Alarm set 2 Activation of GPI forces alarm threshold set 2 to be used It overrides ...

Страница 19: ...Air Sampling Smoke Detection on page iv Caution Check the product termination wiring label during installation and subsequent maintenance visits Figure 12 Terminal block display power supply Operating voltage 24 VDC nominal 18 30 VDC Power consumption 9 8 W nominal 11 7 W in alarm Current consumption 410 mA nominal 490 mA in alarm Legend 3 Display Tx 4 Display Rx 5 Display Comm Gnd 6 Display Power...

Страница 20: ... energized when no fault is present For example when there is no fault present terminal 12 is held open and terminal 14 is held closed When there is a fault present terminal 12 is held closed and terminal 14 is held open NC Normally closed contact of relay with no power applied NO Normally open contact of relay with no power applied Common Common contact for the relay Legend 12 NC Fault relay 13 C...

Страница 21: ... details of the third party equipment Figure 15 Addressable Loop Module with EOL Normally Closed NC FIRE 1 Common C Normally Open NO Normally Closed NC ACTION Common C Normally Open NO Normally Closed NC FAULT Common C Normally Open NO GPI Set to reset NC Reset C NO Input Short Fire Open Fault Fire Panel FACP Detector EOL To next detector or EOL resistor Normally Closed NC FIRE 1 Common C Normally...

Страница 22: ...al port The RS232 serial port requires a standard 9 pin DB9 PC COM serial extension cable male to female for configuring the detector using a PC with VESDA System Configurator VSC installed for status monitoring and command input and for event log extraction and software upgrades For code specific information see Codes and Standards Information for Air Sampling Smoke Detection on page iv Figure 16...

Страница 23: ...e provided in a separate bag with the detector 3 Is the sampling air pipe firmly connected to the air inlet port Ensure the pipe is NOT glued 4 Have the power wires been connected to the correct terminals on the detector 5 If required has the end of line resistor been connected 6 Have the alarm signalling wires been terminated to the correct terminals of the detector 7 Has the Interface card been ...

Страница 24: ...out the design 5 Capillary tube designs must use the same size and length of capillary tube throughout the design 6 The distance from the detector to the first sampling point must be 1 to 2 times the distance between sampling points For example if the sampling points are 4 meters apart then the distance from the detector to the first sampling point must be between 4 and 8 meters Given the constrai...

Страница 25: ...nt with 4 sampling holes and a fitted end cap without a sampling hole Figure 17 Open hole single pipe Single Pipe Network max length 50 m 150ft Sampling holes ID 21 mm Pipe IPS in Pipe Open Hole 5 2 mm Capillary with 5 mm hole Open Hole 3 8 in Capillary with 1 8 in hole Hole Size mm Length m Hole Size in Length ft 5 4 0 5 0 0 1 8 5 32 7 32 0 12 6 3 5 4 5 0 3 1 8 5 32 7 32 0 12 7 3 5 4 0 0 5 2 0 5 ...

Страница 26: ...Codes and Standards Information for Air Sampling Smoke Detection on page iv Branched Pipe Network 2 branches max length 30 m 90ft max distance from detector to branch 5 m 15 ft Sampling Holes per Branch pipe ID 21 mm Pipe IPS in Pipe Open Hole 5 2 mm Capillary with 5 mm hole Open Hole 3 8 in Capillary with 1 8 in hole Hole Size mm Length m Hole Size in Length ft 3 3 5 5 5 0 2 0 5 32 7 32 0 12 4 3 ...

Страница 27: ...table for air sampling across return air grilles of Air Handling Units The recommended coverage of the VESDA LaserFOCUS is 0 4 m 2 4 sq ft per sampling hole This should be considered in conjunction with local codes and standard Note Rotate the air sampling hole approximately 45 o away from the direction of the incoming airflow and towards the grille surface This will minimize the risk of a Low Flo...

Страница 28: ...oncerning return air grille sampling pipe network design consult the VESDA System Design Manual The table below shows the appropriate hole sizes for pre engineered designs for return air grille set ups Table 5 Return air sampling pipe hole numbers and sizes For code specific information see Codes and Standards Information for Air Sampling Smoke Detection on page iv Figure 21 Return air sampling ov...

Страница 29: ...n situations where the detector is located outside the protected area the solutions presented in this manual may not be suitable and it is recommended that alternate designs are verified by a suitably qualified installer using ASPIRE2 The following points should be considered when installing the sampling pipe minimize flexing in sampling pipes by supporting the pipe every 1 5 m 5 ft or less or at ...

Страница 30: ...ode specific information see Codes and Standards Information for Air Sampling Smoke Detection on page iv Figure 22 Interface display Note It is important that the protected area is working under normal operating conditions when operating the AutoLearn processes Note AutoLearn functions can be de activated by a second press of the appropriate button this will leave the thresholds at their default s...

Страница 31: ...ow levels monitored over time and sets suitable air flow thresholds that will not give rise to false flow rates due to normal flow variations such as might arise through air conditioning related false alarms The system will normalize the flow and then monitor the flow trend to set the flow fail thresholds The AutoLearn Flow indicator LED will remain on for the duration of the AutoLearn process At ...

Страница 32: ... field support Description The Instant Recognition Display of the VESDA LaserFOCUS smoke detector shows alarm levels and detector status information The Smoke Dial see F in figure 23 LaserFOCUS detector front view on page 26 a part of the Instant Recognition Display provides clear information of a smoke event relative to the Fire 1 Alarm Threshold This display also identifies system and operationa...

Страница 33: ...s and Standards Information for Air Sampling Smoke Detection on page iv 1 7 Product Interface The VESDA LaserFOCUS provides the following information and control options without the need for additional configuration tools Detector status Normal Alarm Disabled and Fault Alarm levels Alert Action Fire 1 and Fire 2 Smoke levels relative to Fire 1 Detector fault types Instant Fault Finder Test Reset a...

Страница 34: ...able and air sampling pipe entry points the Instant Recognition display and the fitted exhaust deflector Figure 23 LaserFOCUS detector front view D A F B C E Legend A Air inlet port D Rear cable entry not shown B Exhaust deflector E Instant Recognition Display C Cable entry ports x2 F Smoke Dial includes Instant Fault Finder ...

Страница 35: ...the lack of English text beside the icons B D E F G C A Legend Option Definition LED Color A FIRE 2 Indicates the Fire 2 threshold has been reached Red B FIRE 1 Indicates the Fire 1 threshold has been reached Red C ACTION Indicates the Action condition has been reached Red D ALERT Indicates the Alert condition has been reached Red E DISABLED Indicates the unit has been disabled solid or is in stan...

Страница 36: ...y pressing in the security tab on the right side of the detector with a flat screw driver and then lifting the door by the finger clips on each side of the door see Figure 3 Field Service Access Door security tab and clip on page 4 Figure 25 Field Service Access Door security tab and clip Legend A Security tab B Finger clip C Field service access door B A C ...

Страница 37: ...door Figure 26 LaserFOCUS detector with field service access door open E H D C B A F G Legend A Instant Fault Finder fault descriptions B Dual stage air filter cartridge C Alarm level definitions D Control buttons Reset Disable Instant Fault Finder Test E RS232 DB9F serial port F Control buttons AutoLearn Smoke AutoLearn Flow G Control button definitions H Security tab ...

Страница 38: ...stem Configurator VSC software is required The fan continues to run when VLF is disabled but stops when it is in stand by mode Instant Fault Finder Indicates current active faults on the detector Pressing and holding in the Reset button and the Disable button together will show the fault type by number on the Smoke Dial See VLF Troubleshooting with Instant Fault Finder on page 33 for the fault def...

Страница 39: ...alarm set up mode The LED beside the button will remain on for the duration of the AutoLearn process up to 14 days which is also the default period During this period the unit is online alarms are communicated and default thresholds are active To deactivate this function press the AutoLearn Smoke button again AutoLearn Flow The detector automatically measures air flow to the pipes and sets the air...

Страница 40: ...e level and fault condition display Instant Fault Finder When a fault is registered on the detector the fault light D remains on for Major Fault situations and flashes for Minor Fault The Instant Fault Finder function is operated by pressing the Reset and Disable buttons together Instant Fault Finder provides rapid fault diagnosis and is an additional function of the Smoke Dial display One or more...

Страница 41: ...its or the detector maximum flow Check the pipe network for blockages Also check the suitability of the pipe network in ASPIRE2 5 Not in use 6 External Device Power Supply Unit External equipment signaling a fault via the General Purpose Input Inspect the external device and also check that the GPI is set to the correct mode Also check that the EOL resistor is correctly connected 7 Interface card ...

Страница 42: ...lt values Alert Smoke Threshold 1 2 0 025 2 0 obs m 0 008 0 625 obs ft 0 08 obs m 0 025 obs ft Action Smoke Threshold 1 2 0 025 2 0 obs m 0 008 0 625 obs ft 0 14 obs m 0 0448 obs ft Fire 1 Smoke Threshold 1 2 0 025 20 obs m 0 008 6 25 obs ft 0 2 obs m 0 0625 obs ft Fire 2 Smoke Threshold 1 2 0 025 20 obs m 0 008 6 25 obs ft 2 0 obs m 0 625 obs ft Alert Verification Delay 1 2 0 60 seconds 10 second...

Страница 43: ...cess Instant Fault Finder Filter and Programming Port Operating Conditions Detector Ambient 0 o C to 40 o C 32 o F to 104 o F Sampled Air 0 o C to 40 o C 32 o F to 104 o F Humidity non condensing 5 to 95 Sampling Network Air inlet pipe OD 25 mm ID 21 mm IPS in OD 1 05 in Alternate pipe sizes can be modelled with ASPIRE2 Single pipe length 50m 150 ft max Single pipe Sampling holes 5 8 sampling hole...

Страница 44: ...erminals 0 2 mm 2 2 5 mm 2 30 12 AWG Interfaces Power In Out Fire 1 Relay changeover 2A 30 VDC Action Relay changeover 2A 30 VDC Fault Relay changeover 2A 30 VDC General Purpose Input clean contact External display port with power limited output RS232 programming port Alarm Ranges Alert Action 0 025 2 0 obs m 0 008 0 625 obs ft Fire 1 Fire 2 0 025 20 obs m 0 008 6 25 obs ft Individual Delays 0 60 ...

Страница 45: ...nged from pre set values Referencing Reference smoke level source for networked detectors requires a VESDAnet Interface card Ordering Information VESDA LaserFOCUS VLF 500 VLF 500 00 VLF 500 01 VLF 500 02 VLF 500 03 VLF 500 04 European language set English display labels European language set International display labels English Asian language set International display labels Scandinavian language ...

Страница 46: ... two serviceable items the air filter cartridge and the aspirator Caution Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector otherwise damage may occur to the detector Figure 28 Maintenance replaceable items Multifunction Control Card MCC with Monitored Powered Output MPO VIC 030 A B Legend A Dual stage air filter cartridge B Aspirator ...

Страница 47: ...at a new filter has been installed Note Prior to any work or maintenance being carried out on the VESDA LaserFOCUS take the necessary steps to advise the monitoring authority that power may be removed and the system disabled Note Ensure the area surrounding the filter is clear of dirt and debris prior to replacement Note The filter is for single use only it cannot be cleaned and re used Action Fre...

Страница 48: ...r VSP 005 and tighten the retaining screw 6 Press the Disable button for 6 seconds to return the detector to normal operation 7 Record the filter replacement date on the filter 8 Close the field service access door Figure 29 Filter replacement Aspirator replacement Note Prior to replacing the aspirator advise the monitoring authority that power will be removed and the system disabled Caution Elect...

Страница 49: ...e of the aspirator Aspirator replacement steps 1 Clip the aspirator VSP 715 into the retaining clip D and swing it back into the detector 2 Tighten the retaining screw A do not over tighten 3 Reconnect the fan loom to the aspirator E 4 Replace the front cover and screw it into place 5 Close the field service access door 6 Reconnect power to the detector Figure 30 Aspirator replacement A E D C B Le...

Страница 50: ...Date 1 Wiring Checked 2 Detector Diagnostics 3 Display Diagnostics 4 Test Relay 1 2 3 4 Client Representative Name Test Witnessed By Date Hand Over Documents 1 Copy of this form 2 ASPIRE2 Installation Data Pack 3 ASPIRE2 Bill of Materials 4 Commissioning form for each detector 5 Commissioning form for each relay card 6 Ancillary devices form 7 Smoke test results 8 Forms to comply with the local co...

Страница 51: ... version Card inserted VESDAnet Interface card or Multi relay card or None Alarm Thresholds Significant Smoke Day Alert Instant Fire Enable disable Action Filter Service Period Fire1 Reference Detector Address Zone Fire2 Dilution Day Night Changeover Enable Disable Delay seconds Day starts Flow Threshold High Major Night starts High Minor Night Alert Low Minor Action Low Major Fire1 Delay seconds ...

Страница 52: ...uration Table 14 LaserFocus Relay Configuration commissioning form Delay Alert Airflow Action Raw Flow L min Fire1 Flow Fire2 Maximum Transport Time observed sec Button Lockout Enabled Disabled Smoke Test Reset Isolate AutoLearn Smoke AutoLearn Flow Relays Connected Yes No GPI Connected Yes No GPI Function Relay 1 2 3 Start up Latching Fault 9 Action 9 Fire1 9 D Normally De energized E Normally En...

Страница 53: ...ces Ancillary devices includes any remote displays remote relay cards AOM and SRM assigned to this LaserFOCUS detector Table 17 Ancillary devices commissioning form VESDAnet Interface Card Installed Yes No Card Serial Number Preferred Port Port A Port B Loop Open Ended on this card Yes No Relay Relay 1 Relay 2 Relay 3 MPO GPI Start up Latch ing Alert 9 9 Fire2 9 Disabled Standby Disable MPO Monito...

Страница 54: ...8 ASPIRE2 Data commissioning form Smoke Test Table 19 Smoke Test commissioning form Group 1 Group 2 Group 3 Group 4 Aggregate Sensitivity Balance Suction Pressure least Endcap Sensitivity Factor Pipe Flow Rate L min Test Results Test Method Type of Smoke Test Date ...

Страница 55: ...ing Test Results Table 20 Air Sampling Test results commissioning form Pipe or Branch 1 Branch 2 Transport Time from End Cap Hole Test 1 Initial Response Alert Action Fire 1 Fire 2 Peak Smoke Test 2 Initial Response Alert Action Fire 1 Fire 2 Peak Smoke ...

Страница 56: ...tection products report their status to G General Purpose Input GPI The General Purpose Input is a programmable input H High Airflow Environment Where there are 10 or more air exchanges per hour I Instant Fault Finder Illuminates one or more segments of the Smoke Dial with corresponding fault numbers L LaserFOCUS An air sampling smoke detector using light scattering to report smoke obscuration O O...

Страница 57: ...oLearn is 14 days Pressing the AutoLearn Flow button also normalizes the detector s airflow Pressing an AutoLearn button a second time aborts the AutoLearn function What are the permissible flow normalisation limits for VESDA LaserFOCUS detectors VLF 250 minimum 12 liters per minute maximum 24 liters per minute VLF 500 minimum 12 liters per minute maximum 54 liters per minute What do I do if my VE...

Страница 58: ...ith all VESDA detectors we recommend returning all sampled air from the exhaust into the sampled environment How do I change the filter on my VESDA LaserFOCUS Refer to the VESDA Maintenance Guide available on the website under www xtralis com for full details VLF detectors need to have the front cover lifted Secure the replacement filter and acknowledge the action via a configuration tool VSC VSM ...

Страница 59: ... Features 24 Field service access door 28 Frequently Asked Questions 49 G Glossary 48 I Installation 1 4 Instant fault finder 32 Troubleshooting guide 33 Instant recognition display 27 Inverted mounting 5 M Maintenance 38 Aspirator replacement 40 Schedule 39 Mounting 3 Clearances 3 Orientation 3 Surface 3 Mounting surface 3 P Pipe connections Air inlet 7 Exhaust 8 Pipe network 16 Branched pipe 18 ...

Страница 60: ...LaserFOCUS VLF 500 Product Guide VESDA 52 Specifications 35 U User interface 25 V VESDA System Configurator 23 W Wiring 8 General Purpose Input 9 Power supply 11 Relays 12 Spare terminals 11 ...

Страница 61: ...LaserFOCUS VLF 500 Product Guide VESDA 53 ...

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