Emerson UV/IRS Flame Detector ATEX Manual PDF
Contents
1. 2 1 1 5 Typical 0 5 Potential ignition 6882 22 5 Poleniial NIP ce a Go 6 ARABSOrDING GaS Saen cart recess isc A ee oso est 6 ha EEE EE 5 AT 3 1 1 6 RIE E e REE TE 51 111 6 Field of View as per FM and NFPA definition 2 66 7 Installation Considerations ccccceeceeceeeeeeeeeeceeeeeeeaeeeeaaeseeeeeeeeeesaeeeeeneeeed 7 eee 8 0 8 2 1 3 3 3131 1 1113 65 9 Field Installation 3333 3333313313 1 1 10 3 3 17 7 1 10 Beet neil eae 10 SEAlING I CNT 10 CONNECUNG ses ha ee 3 on 0 11 Detector Setup aaxuiarsalu cine ee dee A ee 13 System Sensitivity seis cake id mana ane 13 need ae aed d de 13 Sensitivity Setting 444 a Ge 13 Time 3 3 13 Closing the 33 3 3 3 3 3 3 3 333 3 3 1 14 TT 14 2 1 11 antl mad ete 14 dd ec 14 ESEE o EAA A E E A E OE E EE EEE 14 Detector Functionally ote e oo ee NENEA 15 Detector Window Lens mn anara2. O ring The rubber o ring on the detector housing is used to ensure the detector is watertight The housing should be opened periodically and the o ring inspected for breaks cracks or dryness To test the o ring remove it from the detector housing and stretch it slightly If cracks are visible the o ring should be replaced If it feels dry to the touch a thin coating of lubricant should be applied such as polyalphaolefin grease When re installing the o ring be sure that it is properly seated in the groove on the housing The o ring must be properly installed and in good condition to prevent water from entering the detector and causing failure The life expectancy of rubber rings varies depending on the type and amount of contaminants present in the area The person who maintains the system must rely on experience and common sense to determine how frequently the rings should be inspected A coating of lubricant should also be applied to the enclosure threads before reassembling the detector to help prevent moisture from entering MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 19 Net Safety Monitoring How To RETURN EQUIPMENT A Material Return Authorization number is required in order to return equipment Please contact Net Safety Monitoring at 403 219 0688 before returning equipment or consult our Service Department to possibly avoid returning equipment If you are required to return equipment include the following
3. OFF Manual VI Testing Good 1lmA Solid Solid OFF Manual VI Testing Excellent 12mA Solid Solid OFF Early Warning Intermittent UV IR detected 16mA Solid OFF OFF Fire Confirmed 20mA OFF Flashing OFF 16 Net Safety Monitoring DETECTOR MAINTENANCE Although an automatic testing of the optics is done every 90 seconds the system should be periodically checked To maintain maximum sensitivity the viewing window and reflector should be cleaned on a routine basis depending on the type and amount of contaminants in the area TESTING WARNING A When testing the system ensure all external equipment is disabled to prevent unwanted activation Manual Check Procedure The whole system should be checked periodically with a Net Safety UV IR test lamp to make sure that the detectors are not obstructed that the area covered by the detector has not changed and that there is no fault in the VI circuit 1 Activate and direct the UV IR test lamp at the detector viewing window The current output will change with the amount of radiation being detected and the Red LED will flash refer to Table 5 Status LEDs and Current Output 2 Turn off the UV IR test lamp after successful check Repeat steps 1 amp 2 for all detectors in the system 4 After all detectors have been checked return the system to the normal operating mode an
4. MONITORING INC Ultraviolet Infrared Flame Detector User Manual Model UV IRS A X OR AR X ISO 9001 2000 MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Net Safety Monitoring IMPORTANT INFORMATION This manual is for informational purposes only Although every effort has been made to ensure the correctness of the information technical inaccuracies may occur and periodic changes may be made without notice Net Safety Monitoring Inc assumes no responsibility for any errors contained within this manual If the products or procedures are used for purposes other than as described in the manual without receiving prior confirmation of validity or suitability Net Safety Monitoring Inc does not guarantee the results and assumes no obligation or liability Complete instructions have been provided for the safe service use installation configuration and maintenance of this product in compliance with EN 60079 14 and EN 60079 10 for hazardous locations Ensure this manual is read thoroughly before installation or operation No part of this manual may be copied disseminated or distributed without the express written consent of Net Safety Monitoring Inc Net Safety Monitoring Inc products are carefully designed and manufactured from high quality components and can be expected to provide many years of trouble free service Each product is thoroughly tested inspected and calibrated prior to shipment Failures can occur w
5. Activate the Manual VI Test Switch with the magnet if the switch is available otherwise use other available options mentioned above for manual VI Test 17 Net Safety Monitoring Note The manual VI feature is optional If not used leave the M VI input disconnected or tied to system common The Manual VI test will return one of four current output responses depending upon the cleanliness of the detector window and reflector the alignment of the reflector or the state of the sensor e Poor 2mA clean optical surfaces align reflector e Adequate 10mA clean optical surfaces check reflector alignment Good 11 mA optical surfaces moderately clean Excellent 12 mA optical surfaces perfectly clean Test Procedure 1 Connect the manual VI test input terminal to system power by either a direct connection or manual push button For Analog models activate the Manual VI Test Switch if available inside the Net Safety Junction Box with the external magnet provided Otherwise use other Manual VI Test options previously mentioned 2 Hold the manual VI input at this voltage for at least two seconds The Green and Red LED will be activated for the duration of the test 3 The detector will output a current that corresponds to the quality of the VI reading obtained see Table 5 after it performs a VI test reading 4 Release the manual VI test input The detector should immediately return to normal operation 5 Ifa VI fault is
6. Locking collar Reflector Surface Viewing Window Detector Housing Flexible Cable Adjustable Swivel Tighten to secure position Monte klinge UV IRS A or AR Note Units are factory sealed Net Safety Monitoring Figure 2 Dimensional Drawing 3 4 NPT 0 25 gt 6 4 mm 2 50 63 5 mm 4 82 122 4 mm 4 12 104 7 mm 4 82 Mounting Flange Swivel Mount MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 REFLECTOR POSITIONING Ensure the external VI reflector is placed directly over the VI Emitters refer to Figure 7 for VI source location Also ensure the detector is mounted with the VI reflector in the top position centred over the yellow dot Figure 3 Position of VI Reflector Centre Line VI Reflector 2 5 diameter 63 5 mm Yellow Dot Net Safety Monitoring FIELD INSTALLATION WARNING A e Wiring codes and regulations may vary Compliance with regulations is the responsibility of the installer Wiring must comply with applicable regulations relating to the installation of electrical equipment in a hazardous area If in doubt consult a qualified official before wiring the system e This equipment is only suitable for ATEX Category 2 Zone 1 locations e Equipment must be installed in compliance with EN 60079 14 e The permanently connected cable need appropiate protection of the free end of the cable Use an ATEX certifie
7. present the current output will indicate 2 mA and the Yellow LED will flash MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 WARNING A The detector will stay in the manual VI test mode as long as the manual VI input is held at the system power voltage During the manual VI test all other detector functions are disabled It is therefore imperative that after this test is performed the manual VI test input be released A visual integrity VI fault may be simulated by completely misaligning or removing the reflector then putting the unit in MVI test mode When this is done the unit will go into fault indicated by the flashing yellow LED and a current output of 2 mA Once the reflector is properly aligned indicated in Figure 3 and Figure 7 and the unit taken out of MVI test mode the unit will return to normal operation with a current output of 4 mA 18 Net Safety Monitoring CLEANING WINDOW LENS AND REFLECTOR When cleaning the window and reflector use the cloth and the cleaning solution provided with the detector Use only the provided cleaning solution as some cleaners can leave a residue or film that may block IR radiation To minimize dirt accumulation around the VI surface a product such as Net Safety s Air Shield should be purchased to minimize particulate build up on the viewing window WARNING A Always bypass Alarm Output when performing maintenance tasks and ensure all external equipment are disconnected deactivated
8. transported and stored in static safe packaging When returning boards carefully package in the original carton and static protective wrapping Ensure ALL personnel are educated and trained in ESD Control Procedures In general exercise accepted and proven precautions normally observed when handling electrostatic sensitive devices A warning label is placed on the packaging identifying product using electrostatic sensitive semiconductor devices pE amp MAN 0075 Rev 03 UVIRS A X AR X 23 November 06 2008 Net Safety Monitoring APPENDIX C RESISTANCE TABLE AWG 16 10 406 508 3 509 os foo fos 70 5 SD 2 099 foo 9 14 0 57 1000 10 20 0 63 316 1530 3030 3 7 46 60 35 3570 50 10 5530 5100 38 Nj t 1 0 0 0 0 0 wj wl 3 N t Lal N N Note Resistance shown is one way This figure should be doubled when determining closed loop resistance MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Net Safety Monitoring APPENDIX D SPECIFICATIONS Models UV IRS A Analog UV IRS AR Analog Relay Operating Voltage 10 to 32 VDC At 10Vdc Nominal 95mA 0 95W Maximum 225mA 2 25W At 10Vdc Nominal 95maA 0 95W Maximum 225mA 2 25W With Heater Nominal 200mA 2 0W Maximum 345mA 3 45W With Heater Nominal 200mA 2 0W Maximum 335mA 3 35W Power Co
9. NG Wire Function Colour Green Earth Ground GND Blue Manual VI MVI White Vdc Black Com Red 4 20mA Signal Output WARNING A For Analog models if terminations are being done in a Net Safety Multi Purpose Junction Box refer to MAN 0081 for specific terminal designations MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 11 Net Safety Monitoring Figure 5 Junction Box Connection ANALOG RELAY BOARD Relay Contacts NO Normally Open NC Normally Closed COM Common z FIELD WIRING 7 FIRE RELAY FAULT RELAY FLAME DETECTOR WIRING Terminal Function Terminal Wire Function RRst Remote Reset B Blue Manual VI Communication MVI Manual VI R Red 4 20mA Signal Output SIG 4 20mA Signal Output BLK Black Com reen art roun PWR Vdc Note Connect Green Wire Earth GND to Note Terminate shield of field wiring at one end ground lug of housing only to Earth Ground Dip Switch See Relay Settings for details WARNING A If the 4 20mA signal is not used connect a jumper between the terminals for 4 20mA signal output SIG and PWR Com on the Field Wiring terminal block 12 MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Net Safety Monitoring DETECTOR SETUP SYSTEM SENSITIVITY The UV IRS fire detector can be adjusted to various sensitivity levels by setting the detector to res
10. a potential fire source which could prevent the UV IRS from detecting a fire or reduce its sensitivity to fire Possible inhibitors include but are not limited to the following Solid objects such as machinery glass or plexiglass between the detector and potential fire source e Water fog rain dirt or dust on the detector window or heavy smoke between the detector and potential fire source Absorbing Gases A further potential inhibitor may be the presence of UV absorbing gases or chemical vapours between the detector and source of potential fire Such gases could impede the detector s ability to detect a UV flame source Small concentrations of these gases may not be sufficient to obstruct the sensor but high concentrations may impede the UV sensor Moving the detectors closer to the probable fire source and increasing the sensitivity can in some circumstances overcome this issue refer to Appendix A Immune The UV IRS exhibits excellent immunity to many conditions activities including but not limited to the following steady hot body radiation e artificial lighting e sunlight direct reflected e arc welding radiation MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 RANGE The practical application distance is directly related to the intensity of the ultraviolet infrared radiation source Table 1 Response Testing Response Testing Average Distance Response Time Fuel Size ft m S
11. al fire is referred to as background UV An example of a high level of background UV could be a flare stack situated outside of a building The UV radiation produced by this flare in conjunction with a false alarm IR source may be Net Safety Monitoring detected as fire when a door to the building is opened Windows or other reflective surfaces may also cause unusually high levels of UV radiation to enter the building from the flare In a situation like this the fire detection system response must be carefully checked and the sensitivity level adjusted high enough so that this background UV will not cause false alarms e UV fire detectors respond to radiation other than ultraviolet X rays in conjunction with a false alarm IR source can activate the detector Since X rays are often used in industrial inspection it may be necessary to disable the system when inspections are conducted nearby e For protection against line surge and extraneous transients it is required to install detector wires in a braided flexible conduit less than 5 feet UNPACK Carefully remove all components from the packaging Check components against the enclosed packing list and inspect all components for obvious damage such as broken or loose parts If you find any components missing or damaged notify the representative or Net Safety Monitoring immediately MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Figure 1 Detector Housing and Swivel Mount
12. alarm conditions Table 6 Possible Problems and Solutions Possible Problem False Alarm Condition Current O P Green LED Yellow LED Red LED 0 mA Solid off Shorted signal Output Loss of Power Loose Wire s I mA Solid Internal power fault or System power out of range om 7 a DERE Possible Solution Check wiring Check fuses 3 AMP fuse on bottom PCB any in line power fuse Check power source at unit Check power supply Clean window use Net Safety Monitoring Lens cleaner only Check for obstruction s within Field of View Check reflector position and alignment Check UV IR source bulb If 4 20 output is not used jumper it to negative PWR Com close current loop Confirm external UV source by covering detector window so it is blind to all radiation If signal goes away background UV is present Field of View should be cleared of UV sources activities i e cracked lenses on sodium mercury vapour bulbs welding grinding flare stacks etc realign detector coverage area redefine Time Delay reset Sensitivity setting If signal persists electrical wiring or detector electronics may be at fault Confirm external IR source by covering detector window so it is blind to all radiation If signal goes away background IR is present Field of View should be cleared of IR sources activities i e hot bodied sources like manifolds heaters etc realign detector coverage area redefine Time Delay reset Sensitiv
13. d Junction Box e Donot open housing and expose electronics in a classified area Do not open when an explosive atmosphere may be present e Ensure area is de classified prior to opening housing e The parts of the bushing outside the flameproof enclosure have to be protected from mechanical impact by means of Ex components e g Enclosure Thread adapters Conduit Wiring For protection against line and extraneous transients it is required to install detector pig tail lead wires in a braided flexible conduit less than 5 feet in length to the termination box From the termination box to the power supply the recommended detector cable is four conductor or greater shielded 18 AWG rated 300 V for distances up to 150 feet When cable is installed in conduit the conduit must not be used to support wiring to any other electrical equipment Detectors can be located over 150 feet and up to 2000 feet if 16 AWG shielded conductor is used The maximum distance between the detector and the power supply is limited by the resistance of the connecting wiring which is a function of the gauge of the wire being used MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Refer to Appendix C Resistance Table Ohms The unterminated wires must be terminated in a suitable certified ATEX enclosure or fitting Grounding An external ground is required The flame detector must also be connected to an ATEX certified junction Box to ensure adherence to saf
14. d enable any external equipment MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Automatic Visual Integrity VI Test The detector performs an automatic Visual Integrity VD test every 90 seconds during normal operation If the lens is dirty obstructed or the reflector is dirty obstructed or misaligned the unit will perform a number of VI tests to confirm the presence of the obstruction If the obstruction is temporary the unit will return to normal after the obstruction is removed If the obstruction remains the unit will drop the current output to 2 mA and the yellow LED will flash continuously indicating a misaligned reflector failed sensor or contaminants on the window or reflector The detector will remain in this condition until the problem is corrected The detector window should be promptly cleaned refer to Cleaning window Lens amp reflector or the obstruction removed Also refer to the troubleshooting section Possible Problems amp Solutions Manual VI Test This test procedure can assist with maintenance planning and is often performed during commissioning The detector has a manual VI input and the manual VI test is performed by connecting Manual VI to system power by a direct connection OR connecting momentary contact push button between system power and the manual VI input e The Net Safety Junction Box is optional and is available with or without a Manual VI Test Switch for Analog models
15. del detector Voltage to detector outside specified range Faulty electronics Adjust power supply voltage check wiring Contact factory See Reflector Positioning on page 9 Cleaning Window Lens and Reflector on page 19 and Manual VI MVI Test on pages 17 amp 18 MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 29
16. econds n Heptane 1 x1 140 42 7 10 6 Methanol 1 x1 40 12 2 9 7 Methane 36 Plume 100 30 5 5 9 Propane 16 Plume 35 10 6 4 0 Jet Fuel 1 x 1 90 27 4 4 7 Diesel 1 x 1 80 24 4 5 1 Lube Oil 1 x 1 50 15 2 6 7 Ethanol Txt 60 18 3 5 7 Gasoline 1 x 1 120 36 6 5 9 NOTE The response time is based on zero time delay and maximum sensitivity Net Safety Monitoring Field of View as per FM and NFPA definition The area in front of a flame detector where a standardized flame can be detected and which is specified by distance and angle off the central axis is the Field of View The referenced flame is moved to 50 of the maximum on axis detection distance and then moved off axis horizontally and vertically to the limit of detection These off axis angle limits specify Field of View Table 2 Field of View Testing Field of View Testing Horizontal Vertical Fuel Size Degrees Degrees n Heptane 1 1 120 60 60 120 60 60 Methanol 1 x1 120 60 60 105 45 60 Methane 36 Plume 120 60 60 95 35 60 Propane 16 Plume 110 55 55 95 35 60 Jet Fuel 1 x1 120 60 60 95 35 60 Diesel 1 x1 120 60 60 95 35 60 Lube Oil 1 x1 120 60 60 95 35 60 Ethanol 1 1 120 gt 60 100 40 60 Gasoline 1 x 1 120 60 60 95 35 60 NOTE Data based on Maximum Sensitivity Setting MAN 0075 Rev 03 UVIRS A X AR X Novembe
17. ential fire Distance between possible fire and detector Type of flammable substance to be detected Environmental factors Time Delay Setting Defining the Time Delay allows the Fire alarm signal to delay for the specified time before indicating an alarm This feature can be beneficial depending upon the conditions activities surrounding the detector 13 Net Safety Monitoring Table 3 Sensitivity and Time Delay Settings Sensor Module Sensitivity Time Delay OFF Note Default settings are set for Maximum Sensitivity of 8 Counts per Second CPS and a 3 second Time Delay Closing the Housing When closing the Housing Cover be sure that the top and bottom are screwed together tightly TIP It is extremely important that the VI reflector is centred over the yellow dot Refer to Figure 3 or Figure 7 RELAY SETTINGS Coil and Latch Status The Junction Box Relay only has a two position DIP Switch to define the Coil and Latch Status for the Fire Relay Refer to Figure 5 Junction Box Connection Analog Relay Board for DIP Switch location Note The default Fire Relay is normally De energized Non Latching The Fault Relay is factory set to normally Energized Non latching and cannot be modified MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Table 4 Relay Setting Junction Box Coil and Latch Status Fire Relay Position 1 Position 2 De e
18. ertified to Class3260 ANSI NEMA 250 and IEC60529 APPROVED Approvals C 0575 x 126 EEx d II B H2 T5 NOTE Performance certified by FM with maximum sensitivity setting and zero second time delay MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 25 Net Safety Monitoring APPENDIX E UVIRS DATA Falsee Alarm Source Distance Modulated Unmodulated ft m Sunlight direct No Alarm No Alarm Sunlight indirect ss No Alarm No Alarm Arc Welder 30 9 1 No Alarm 10000000 1500 Watt heater 10 3 0 No Alarm No Alarm 40 Watt Fluorescent Lights 10 3 0 No Alarm No Alarm 500 Watt Halogen Light 3 0 9 No Alarm No Alarm 250 Watt Incandescent Light 3 0 9 No Alarm No Alarm 250 Watt Sodium Vapor Lamp 10 3 0 No Alarm No Alarm 70 Watt Sodium Vapor Lamp 10 3 0 No Alarm No Alarm 250 Watt Metal Halide Lamp 10 3 0 No Alarm No Alarm Response Testing w Un modulated False Alarm Stimuli Present False Alarm Source False Alarm Source Distance ft m Fire Source Fire Source Distance ft m Sunlight direct eee wee eee nee eee 16 Propane Plume 25 7 62 Sunlight indirect 0 16 Propane Plume 25 7 62 1500 Watt heater 10 3 0 16 Propane Plume 25 7 62 40 Watt Fluorescent Lights 10 3 0 16 Propane Plume 25 7 62 500 Watt Halogen Light 3 0 9 16 Propane Plume 25 7 62 250 Watt Incandescent Light 3 0 9 16 Propane Plume 25 7 62 250 Watt Sodium Va
19. ety conditions If the junction box is non metallic the external ground must be provided by some other means SEALING Water proof and explosion proof conduit seals are recommended to prevent the accumulation of moisture within the junction box Seals should be located as close to the device as possible and not more than 18 inches 46 cm away Explosion proof installations may require an additional seal where conduit enters a non hazardous area When pouring a seal use a fibre dam to ensure proper formation of the seal Seals should never be poured at temperatures below freezing The jacket and shielding of the cable should be stripped back to permit the seal to form around the individual wires This will prevent air gas and water leakage through the inside of the shield and into the enclosure It is recommended that explosion proof drains and conduit breathers be used Changes in temperature and barometric pressure can cause breathing which allows moist air to enter conduit Joints are seldom enough to prevent breathing 10 Net Safety Monitoring CONNECTING There are two configurations of the UV IRS available Analog A and Analog with Relays AR Review the following figures for wiring and other settings specific to A or AR configurations WARNING A Prior to wiring ensure power is disconnected Improper wiring can cause damage to the detector Figure 4 Wire Colour Coding ANALOG FLAME DETECTOR WIRE CODI
20. hen testing the system ensure all external equipment is disabled to prevent unwanted alarm activation Enable external equipment once testing is completed MONITOR The Detector s status can be determined by monitoring the current loop and or the condition LEDs Condition Status LEDs There are three 3 LEDs used to indicate the status of the detector refer to Table 5 Status LEDs and Current Output 15 Net Safety Monitoring Condition Status Current Output The Current Loop status can also be measured to determine detector condition Test Jacks are available on the Analog version connector board in the Net Safety Multi Purpose Junction Box Refer to MAN 0081 for details The area must be de classified prior to opening the Junction Box The detector can also be monitored using the 4 20 mA Signal Output MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 LED Status Internal power Fault or system power out of range Current O P ImA Table 5 Status LEDs and Current Output Green LED Red LED PWR OFF Alarm Yellow LED Fault Solid Automatic or manual VI Test Failure 2mA OFF OFF Flashing Power up 90 secs start delay 3mA Solid OFF OFF Normal Operation 4mA Solid OFF OFF Background UV Source 6mA Solid OFF OFF Background IR Source 8mA Solid OFF OFF Manual VI Testing Adequate 10mA Solid Solid
21. hich are beyond the control of the manufacturer Failures can be minimized by adhering to the operating and maintenance instructions herein Where the absolute greatest of reliability is required redundancy should be designed into the system MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Warranty Net Safety Monitoring Inc warrants its sensors against defective parts and workmanship for a period of 24 months from date of purchase other electronic assemblies for 36 months from date of purchase No other warranties or liability expressed or implied will be honoured by Net Safety Monitoring Inc Contact Net Safety Monitoring Inc or an authorized representative for details We welcome your input at Net Safety Monitoring If you have any comments please contact us at the phone address below or visit our web site and complete our on line customer survey www net safety com Contact Information Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary AB Canada TLY 757 Telephone 403 219 0688 Fax 403 219 0694 www net safety com E mail Email nsmsales net safety com Copyright 2007 Net Safety Monitoring Inc Printed in Canada TABLE OF CONTENTS Important 1 nt 3 std nach webct 2 RR EG FAR en En 3 1 1 3 ila g asc eis E a 1 5 Spectral 3 3 5
22. incandescent lamps 100 Spectral Response Detector Relative Sensitivity of Detector 50 Relative Sensitivity of Light Source preg 10 50 Su 70 50 ooo etme ee ED MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Locate Detector When positioning fire detectors consider such factors as distance from the fire type of fuel and temperature as well as any environmental factors which may influence the detector s response to radiation Typical applications e automotive manufacturing and paint spray booths eaircraft hangars commercial and military e offshore platforms refineries pipelines and production ships e printing industry facilities e oil gas and petrochemical refineries production storage off loading shipping e various production processing and storage facilities e munitions handling e warehouses flammable liquids toxic gases and tank farms floating non floating e power generation pumps generators and unmanned stations Potential ignition sources A hydrocarbon fuel based fire can erupt in areas where the following are found alcohol acetylene diesel and hydraulic fuel e liquefied natural gas LNG e liquefied petroleum gas LPG gasoline natural gas e paint e solvents aviation fuel e heptane naptha e propane methane butane Net Safety Monitoring Potential inhibitors A potential inhibitor is anything located between the detector and
23. information 1 A Material Return Authorization number provided over the phone to you by Net Safety 2 A detailed description of the problem The more specific you are regarding the problem the quicker our Service department can determine and correct the problem 3 A company name contact name and telephone number 4 A Purchase Order from your company authorizing repairs or request for quote 5 Ship all equipment prepaid to Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary Alberta Canada T1Y 7J7 6 Mark all packages RETURN for REPAIR Waybills for shipments from outside Canada must state Equipment being returned for repair All charges to be billed to the sender MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Also please ensure a duplicate copy of the packing slip is enclosed inside the box indicating item 1 4 along with the courier and account number for returning the goods All Equipment must be Shipped prepaid Collect shipments will not be accepted Pack items to protect them from damage and use anti static bags or aluminium backed cardboard as protection from electrostatic discharge 20 Net Safety Monitoring TROUBLESHOOT The occurrence of a false alarm may be due to various factors In order to determine the source of a false alarms keep accurate records including time date weather conditions activities in area etc Consult the following table for possible solutions to false
24. itive Device ESD 23 Appendix C Resistance Table rrurnrrnannvnnnnnvnnrnrrvnnnrrnnnnnnnenrnnnnrrennnrnnnennenenn 24 Appendix D Specifications 2222 25 Appendix 610 26 Appendix E UVIRS DATA Continued 2222 6 27 Net Safety Monitoring INTRODUCTION The UV IRS is a smart stand alone fire detector combining sensors for both the ultra violet and infrared spectra The detector is designed to respond to a wide range of hydrocarbon based fires and the rugged design is ideal for both indoor and outdoor applications The microcontroller monitors and analyzes each sensor to identify a variety of flame conditions Only when the defined detection criteria for both IR and UV sensors indicate a fire condition will the detector alarm Spectral Sensitivity Range The UV IRS fire detector responds to UV radiation wavelengths of 185 to 260 nanometres 1850 to 2600 angstroms and IR radiation in the 4 4 micron range Note that UV radiation reaching the earth from the sun does not extend into the sensitivity range of the detector nor does radiation from normal artificial lighting such as fluorescent mercury vapour and
25. ity setting If signal persists electrical wiring or detector electronics may be at fault Clean all optical surfaces use Net Safety Monitoring Lens cleaner only Background IR source Solid Manual VI test adequate Solid Manual VI test good ama soia Solid Manual viiest exceleny MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 No action required optics are moderately clean No action required all optical surfaces are perfectly clean 21 Net Safety Monitoring APPENDIX A COMMON UV ABSORBING GASES Since the UV IR A amp UV IR AR fire detectors are designed to detect fires by responding to the ultra violet UV and Infrared IR radiation they emit it is very important to be aware of UV absorbing gases that may be present between the detector and the sources of potential fires Small concentrations of these types of gases may not absorb enough UV radiation to cause a problem but when higher concentrations of these gases are present the detectors may become blind as not enough ultra violet radiation can reach them to activate an alarm Moving detectors closer to the probable source of fire and increasing the sensitivity of the detector can help to overcome this problem in some cases Following is a list of common UV absorbing gases Acetaldehyde Acetone Acrylonitrile Ethyl Acrylate Methyl Acrylate Ethanol Ammonia Aniline Benzene 1 3 Butadiene 2 Butanone Butylamine Chlorobenzene 1 Chloro 1 Nitr
26. nergized Non latching Energized Non latching De energized Latching Energized Latching Remote Reset If the alarm is setup for latching status then it can be reset by momentarily connecting RRST Remote Reset to PWR in the Junction Box Relay only Refer to Figure 5 and Table 4 Final Setup e Ensure all internal settings are complete e Securely close Housing e Ensure centre line of reflector is positioned over the Yellow Dot Refer to Figure 3 e Clean detector lens Mount and align detector 14 Net Safety Monitoring DETECTOR FUNCTIONALITY DETECTOR WINDOW LENS Figure 7 Detector Viewing Windows Non heater version shown CENTRE LINE VI Reflector i VEE IR Emitter Yellow Do IR Sensor Green LED Reiley YellowLED Note An optional heater is available to eliminate condensation on the glass window lens MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 START UP PROCEDURE Once powered up the UV IRS will begin a 90 second start up routine During this time the current output will be 3 mA The UV and IR source lights and the Green power LED will be on for the 90 seconds Once the start up procedure has finished and no faults are present the detector will begin normal operation current output 4 mA and Green LED will remain on System Check Once powered up the system should be checked Refer to the section entitled Manual Check Procedure for instructions WARNING A W
27. nsumption At 24Vdc Nominal 45mA 1 1W Maximum 115mA 2 76W At 24Vdc Nominal 45mA 1 1W Maximum 115mA 2 76W With Heater Nominal 90mA 2 16W Maximum 165mA 3 96W With Heater Nominal 90mA 2 16W Maximum 165mA 3 96W At 32Vdc Nominal 35mA 1 12W Maximum 105mA 3 36W At 32Vdc Nominal 35mA 1 12W Maximum 105mA 3 36W With Heater Nominal 70mA 2 24W Maximum 145mA 4 64W With Heater Nominal 70mA 2 24W Maximum 145mA 4 64W In Rush Current 1 5A for 22ms Current Output 0 to 20 mA Into a max loop impedance of 800Ohms 32Vdc or 150Ohms 11 0Vdc Non Isolated loop supply Form C contacts rated 1A 30Vde 0 5A 125Vac Selectable energized de Relay Output N A energized latching non latching Fire relay Fault relay fixed as energized non latching Field of View 120 Horizontal 95 Vertical 50 of maximum on axis distance Spectral Range UV radiation over the range of 185 to 260 nanometres 1850 to 2600 angstroms IR radiation in the 4 4micron range Time Delay DIP switch selectable 0 3 5 7 seconds Sensitivity Settings DIP switch selectable 8 16 24 or 32 counts per seconds Temperature amp RH FM Certified 40 C to 75 C 40 F to 167 F Operational 50 C to 75 C 58 F to 167 F 0 95 RH non condensing Metallurgy amp IP NEMA Aluminum or 55316 factory sealed housing IP66 and NEMA 4X Weight with swivel 2 1Kg 4 5lbs 55316 Option 3 4Kg 7 51bs FM Performance c
28. opropane Chloroprene MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Cumene Cyclopentadiene O Dichlorobenzene P Dichlorobenzene Methyl Methacrylate Alpha Methylstyrene Naphthalene Nitroethane Nitrobenzene Nitromethane 1 Nitropropane 2 Nitropropane 2 Pentanone Phenol Phenyl Clycide Ether Pyridine Hydrogen Sulfide Styrene Tetrachloroethylene Toluene Trichloroethylene Vinyl Toluene Xylene 22 Net Safety Monitoring APPENDIX B ELECTROSTATIC SENSITIVE DEVICE ESD Electrostatic discharge ESD is the transfer between bodies of an electrostatic charge caused by direct contact or induced by an electrostatic field The most common cause of ESD is physical contact Touching an object can cause a discharge of electrostatic energy ESD If the charge is sufficient and occurs near electronic components it can damage or destroy those components In some cases damage is instantaneous and an immediate malfunction occurs However symptoms are not always immediate performance may be marginal or seemingly normal for an indefinite period of time followed by a sudden failure To eliminate potential ESD damage review the following guidelines Handle boards by metal shields taking care not to touch electronic components Wear grounded wrist or foot straps or ESD shoes or heel grounders to dissipate unwanted static energy Prior to handling boards dispel any charge in your body or equipment Ensure components are
29. p www net safety com service product_services html MONITORING INC 28 MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Condition Detector intermittently powers up down ADDENDUM TROUBLESHOOTING GUIDE UV IRS Flame Detectors Possible Cause Faulty power supply or wiring Faulty electronics REF 0005 Rev 0 December 09 2010 Possible Solution Replace power supply or check wiring Contact factory Detector does not power up Green LED Off See Figure 7 when locating LEDs also refer to Start Up Procedure on page 15 Faulty power supply or wiring Voltage to detector outside specified range Blown inline fuse Faulty electronics no power to detector Replace power supply or check wiring Change correct input voltage to detector Replace inline fuse Contact factory Unstable 4 20mA signal Unshielded cables used for wiring or improper shield and ground connection Faulty electronics Confirm shield amp ground wiring Follow wiring guidelines specific to installation amp equipment Contact factory No 4 20mA Output Signal 0 mA at and after start up see Start Up Procedure on page 15 Open broken 4 20mA signal loop wiring Faulty electronics Close 4 20mA signal loop wiring Contact factory 1 0mA Fault Solid Yellow LED See Figure 7 on page 15 when locating LEDs Power supply failure Supply voltage to detector less than 10Vdc Detector internal
30. pond at a predetermined detector count rate The count rate is dependent upon the intensity of the ultraviolet infrared radiation reaching the detector which in turn depends on the type of fuel temperature flame size and distance of flame from the detector DIP Switch Access DIP Switches are used to set the detector s sensitivity and time delay settings The DIP Switches are located on the internal Sensor module of the UV IRS WARNING A Do not open the fire detector in a classified area The area must be de classified prior to opening the fire head This detector is ATEX approved and has a locking collar that requires a 2mm Hex key to open WARNING AN Do not touch internal components other than the DIP Switches see Appendix B Electrostatic Sensitive Device ESD To access and select Dip switches follow the steps below 1 Unscrew Locking Sleeve Collar s 6 set screws and slide it off the housing 2 Unscrew the Housing Top counter clockwise 3 Slide a DIP Switch to the ON or OFF position Refer to Figure 6 and Table 3 for instructions MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Figure 6 DIP Switch Location Housing Base Sensor Module Housing Top Locking Sleeve Collar DIP Switch 9 Sensitivity Setting The adjustable Sensitivity setting is used to optimize the UV IRS for various installations When selecting a Sensitivity setting consider the following points Size of pot
31. por Lamp 10 3 0 16 Propane Plume 25 7 62 70 Watt Sodium Vapor Lamp 10 3 0 16 Propane Plume 25 7 62 250 Watt Metal Halide Lamp 10 3 0 16 Propane Plume 25 7 62 MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Net Safety Monitoring APPENDIX E UVIRS DATA CONTINUED Response Testing w Modulated False Alarm Stimuli Present False Alarm Source Distance ft m Fire Source Fire Source Distance ft m Sunlight direct 2 7 22 777 16 Propane Plume 25 7 62 Sunlight indirect 7 1 we nee nnnnnnne 16 Propane Plume 25 7 62 1500 Watt heater 10 3 0 16 Propane Plume 25 7 62 40 Watt Fluorescent Lights 10 3 0 16 Propane Plume 25 7 62 500 Watt Halogen Light 3 0 9 16 Propane Plume 25 7 62 250 Watt Incandescent Light 3 0 9 16 Propane Plume 25 7 62 250 Watt Sodium Vapor Lamp 10 3 0 16 Propane Plume 25 7 62 70 Watt Sodium Vapor Lamp 10 3 0 16 Propane Plume 25 7 62 250 Watt Metal Halide Lamp 10 3 0 16 Propane Plume 25 7 62 MAN 0075 Rev 03 UVIRS A X AR X November 06 2008 Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary AB Canada T1Y 7J7 1 866 FIREGAS 347 3427 ph 403 219 0688 fx 403 219 0694 http www net safety com Email nsmsales net safety com PRODUCT SERVICES CONTACT INFORMATION Telephone 8am 5pm MDT 403 769 6074 403 717 8219 Fax 403 219 0694 Email productservices net safety com htt
32. power supply failure Replace power supply Confirm supply voltage 10 32Vdc to detector Contact factory 1 6mA Fault Flashing Yellow LED VI test fault in UV path Align reflector properly Clean reflector amp or See Figure 7 on page 15 when locating LEDs lens Perform MVI test Contact factory 1 8mA Fault Flashing Yellow LED VI test fault in IR path e Align reflector properly Clean reflector amp or See Figure 7 on page 15 when locating LEDs lens Perform MVI test Contact factory Missing VI reflector Fit amp align VI reflector Perform MVI test 2 0mA Fault Flashing Yellow LED See Figure 7 on page 15 when locating LEDs Complete misalignment of VI reflector Dirty VI reflector amp or lens Damaged or cracked lens Align VI reflector properly Perform MVI test Clean VI reflector amp or lens Perform MVI test Contact factory 6mA Output Signal 8mA Output Signal UV radiation detected IR radiation detected OR Detector sensor s too sensitive Locate amp remove background UV radiation Locate amp remove background IR radiation Adjust sensitivity amp time delay settings See pages 13 amp 14 16mA or 20mA no fire present UV amp IR radiation present Damaged or faulty sensor s Faulty electronics Locate amp remove background UV amp IR radiation Contact factory Contact factory erroneous relay state for AR analog relay mo
33. r 06 2008 Installation Considerations The following should be considered when mounting flame detectors Point detector toward where the flame is expected Ensure an unobstructed view of the area to be monitored Employ more than one detector to ensure the hazard is fully covered Mount the detector a few feet about 1 metre below the ceiling so it can respond before being blocked by smoke accumulation at the ceiling If dense smoke is likely to accumulate prior to flame as in an electrical fire supplement UV IR detector s with other protection such as Net Safety Monitoring Airborne Particle Monitor The detector should be accessible for cleaning the window lens and reflector surfaces Tilt detector downward a minimum of 10 to 20 to reduce dirt and dust accumulation which could obscure the detector s viewing window Securely mount detector so as to reduce vibration as much as possible When located outside detector sensitivity can be reduced by heavy fog rain and or ice Consider shortening the time delay settings when smoke is expected to accumulate before or during a fire refer to System Sensitivity Reduce sensitivity setting if false alarms related to surrounding activities occur refer to System Sensitivity When installed near or on water such as an off shore platform be sure to take into account the low horizon level when tilting detector downward UV radiation other than that produced by an actu
34. s no 3 0 a 15 Start Up Pr c dure nn astra ee ttl eae 15 System 15 sauna 15 Condition Status LEDS rrennnnvnnnnvvnnnnrnnanavnnnnrnnnnrrnanavennnnennnnrnsenanenennennn 15 Condition Status Current 0 2 2222 02666 6 16 1 191 1 1 2 3 3 13 17 11 0 17 2 eo ee 17 Manual Check 9900110 5 17 Automatic Visual Integrity VI Test nmmssmrerrrervvrrennrrnrnrvnrrrrrernnrnnrnnnerenr 17 Manual VI TeSt i 3 133 1313 1 aitA 17 TBSL POCBOUTE ost oc 323 333 11 1111 111 18 Cleaning Window Lens and Reflector 2 2 442244 999eeeeeeneennennnnnens 19 pee 19 How To Return 0222 20 TR pH 21 Appendix A Common UV Absorbing Gases 2 22 Appendix B Electrostatic Sens
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