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Spectrex Inc. - SharpEye

TM

Single IR Flame Detector Manual – TM 20/20R, Rev. A January2005

26

Description

1 Protective Set

Screws

2 Ground Terminal

(for ATEX) or
Ground Thread
(for FM)

3  Back Cover
4  Housing
5  Swivel Mount

Screw Hole

6  Swivel Mount
7  Holding Plate
8  Locking Screws
9  Detector

Mounting
Screws

10 Swivel Mount

Plate

11 Swivel mounting

screws

Figure 9: Swivel Mount Assembly - Outline Drawing

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Содержание SharpEye 20/20R

Страница 1: ...Maintenance Manual TM 20 20R Rev A January 2005 ATEX Approved Ex II 2G EExd IIB H2 T5 EExde IIB H2 T5 218 Little Falls Rd Cedar Grove NJ 07009 USA Phone 1 973 239 8398 Fax 1 973 239 7614 Web Site www spectrex inc com Email spectrex spectrex inc com ...

Страница 2: ......

Страница 3: ...serves the right to make changes to any products described herein to improve reliability function or design and reserves the right to revise this document and make changes from time to time in content hereof with no obligation to notify any persons of revisions or changes Spectrex Inc does not assume any liability arising out of the application or any use of any product or circuit described herein...

Страница 4: ......

Страница 5: ...ional 12 4 3 3 Alarm Delay switch SW3 13 4 4 BUILT IN TEST 14 5 Technical Specifications 17 5 1 ELECTRICAL SPECIFICATIONS 17 5 2 MECHANICAL SPECIFICATIONS 20 5 3 ENVIRONMENTAL SPECIFICATIONS 21 6 Installation Instructions 22 6 1 SCOPE 22 6 2 GENERAL CONSIDERATIONS 22 6 3PREPARATIONS FOR INSTALLATION 23 6 4 CONDUIT INSTALLATION 23 6 5 DETECTOR MOUNTING 24 6 5 1 Swivel Mount Kit 24 6 5 2 Swivel inst...

Страница 6: ...TENANCE PROCEDURES 36 8 4 1 Power Up Procedure 36 8 4 2 Functional Test Procedure 36 8 5 MAINTENANCE RECORDS 37 8 6 TROUBLESHOOTING 37 8 6 1 Fault Indication 37 8 6 2 False Alarm or Warning Indication 37 Appendix A Wire Selection Tables 39 Appendix B Typical Wiring Configurations 41 Appendix C RS 485 Communication Network 45 Appendix D Mounting the EExde approved version 47 Appendix E IR Fire Simu...

Страница 7: ...ing diagram for controllers with alarm fault loops 43 Figure 16 4 20mA wiring 44 Figure 17 RS 485 networking 45 Figure 18 Flame Detector Assembly Wiring Diagram 49 Figure 19 OPTION A Flame Detector Assembly Wiring Diagram de version 50 Figure 20 OPTION B Flame Detector Assembly Wiring Diagram de version 50 Figure 21 Fire Simulator 51 Figure 22 IR Detector Target Point 52 LIST OF TABLES Table 1 Ala...

Страница 8: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 IV ...

Страница 9: ...ion operation and maintenance This manual is divided into separate chapters as follows Chapter 1 Scope a general introduction and overview of the product and the Manual with a brief description of its content Chapter 2 Technical Description the detector s theory of operation Chapter 3 Performance the detector features and capabilities Chapter 4 Operation the detector s operation modes user interfa...

Страница 10: ...ication Approved by ATEX 2 1 Principles Of Operation The Single IR flame detector provides early warning of flaming fires involving organic hydrocarbon fuels and vapours materials These fires emit strong IR radiation in the 4 4 micron spectral band where the CO2 main combustion product of any organic substance has a unique spectral peak This detector contains a state of the art infrared sensor and...

Страница 11: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 3 Figure 2 Flame Detector Assembly Outline Drawing ...

Страница 12: ... user selectable sensitivity ranges For each range there are two response levels 1 WARNING Pre alarm 2 ALARM The detection distance for the WARNING level is approximately 10 higher than the ALARM distance Alarm response times for a standard fire at a specified range are shown hereunder Table 1 Alarm Response Time Versus Range Sensitivity 1 2 Range ft m 15 5 50 15 Response Time sec 5 10 For some ty...

Страница 13: ...ill react to other types of fires as follows Pan Fire Size 1ft x 1ft 0 3m x 0 3m Maximum Wind Speed 6 5 ft sec 2 m sec Maximum Response Time 10 sec Table 2 Response Sensitivity Ranges Type Of Fuel Of Max Distance at Each Sensitivity Range Gasoline 100 N Heptane 100 Alcohol 95 75 JP4 75 Kerosene 75 Diesel Fuel 50 ...

Страница 14: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 6 3 2 Cone Of Vision Horizontal 90 Vertical 90 Figure 3 Horizontal and Vertical Fields of View ...

Страница 15: ...t Any Distance All sources are chopped from 0 to 20Hz Table 3 Immunity To False Alarm Sources Immunity Distance Radiation Source ft m Incandescent frosted glass light 100 W 1 7 0 5 Fluorescent light with white enamel reflector standard office or shop 40 W or two 20 W IAD Arc welding 4 mm 5 32 in rod 240 A 11 5 3 5 Halogen light 750W 16 5 5 5 Grinding metal 1 7 0 5 Lit cigar 3 3 1 Lit cigarette 1 7...

Страница 16: ...v A January2005 8 4 Operation 4 1 Visual Indications Two LED indications are located in the detector front window i Power LED Yellow Normal LED ON BIT failure LED flashes 4 Hz ii Alarm LED Red Normal LED OFF Warning LED flashes 2 Hz ALARM LED ON Figure 4 Indication LEDs ...

Страница 17: ... extinguished Fault A fault is detected during a BIT sequence or the power supply is too low In each state the detector will activate different outputs as specified in table 5 Table 4 Output Signals Versus Detector State Detector State SW1 Power Led Alarm Led Alarm Relay Accessory Relay Fault Relay 4 20mA Output Normal On Off Off Off On 5mA Warning Sw1 2 ON On Flash 2Hz Off On On 10mA Alarm On On ...

Страница 18: ...vide 15mA for 3 sec SW 1 5 ON SW 1 4 ON The ACCESSORY ALARM relays will be activated for 3 sec The 4 20mA output will provide 15mA for 3 sec SW 1 5 ON SW 1 4 OFF The ACCESSORY relay will be activated for 3 sec The 4 20mA output will provide 10mA for 3 sec 4 2 3 Accessory Relay as EOL When SW1 8 is ON then the accessory relay is used as End of Line relay In this case the accessory relay is active a...

Страница 19: ...m relay and the 4 20mA output turns to 15mA for approximately 3 seconds default Successful manual BIT does not activate the Alarm relay 5 Successful manual BIT activates the accessory relay and the 4 20mA output turns to 10mA for approximately 3 seconds default Successful manual BIT does not activate the Accessory relay 6 Sensitivity range see table 6 below default Sensitivity range see table 6 7 ...

Страница 20: ...ddress bit 0 LSB 2 Address bit 1 3 Address bit 2 4 Address bit 3 5 Address bit 4 6 Address bit 5 MSB Legend 0 OFF 1 ON LSB Least Significant Bit MSB Most Significant Bit SWITCH SW2 7 and SWITCH SW2 8 are unused Table 8 SW2 Address Setting Address SW2 6 SW2 5 SW2 4 SW2 3 SW2 2 SW2 1 0 OFF OFF OFF OFF OFF OFF 1 OFF OFF OFF OFF OFF ON 2 OFF OFF OFF OFF ON OFF 3 OFF OFF OFF OFF ON ON 4 OFF OFF OFF ON ...

Страница 21: ...Alarm output relay by the specified period of time The detector will then evaluate the condition for 3 seconds If the Alarm level is still present the Alarm output will be activated If this condition no longer exists the detector will return to its standby state The Alarm delay option will affect the output relay and the 4 20mA output but not the alarm LED Table 9 SW3 Alarm Delay Setting SW3 switc...

Страница 22: ...T checks the following Electronics circuitry Sensors Window cleanness The detector is set by default to perform the BIT automatically and manually SW1 3 ON or can be manual only set SW1 3 OFF An Automatic BIT will regularly check the detector and warn of a problem by operating the Fault relay and setting the mA output to 0mA Also the Power LED will Flash The manual BIT allows testing of unit at co...

Страница 23: ...ts outputs C Manual BIT only SW1 3 OFF The BIT is initiated manually by momentarily connecting Terminal No 3 with Terminal No 2 Successful manual BIT activates the following FAULT relay is closed normal ALARM relay is activated for 3 sec SW1 4 ON ACCESSORY relay is activated for 3 sec SW1 5 ON 4 20mA OUTPUT current will be 15mA when SW1 4 ON or 10mA when SW1 5 ON SW1 4 OFF Unsuccessful BIT activat...

Страница 24: ...operation will continue until two consecutive successful BIT s have been encountered As a result the detector will resume its normal operation Automatic BIT The detector automatically performs a BIT every 15 minutes A successful BIT sequence does not activate any indication The FAULT relay is CLOSED NORMAL The POWER LED is ON NORMAL An unsuccessful BIT sequence activates the following The FAULT re...

Страница 25: ...cal Specifications 5 1 Electrical Specifications A Operating Voltage 18 32 VDC B Power Consumption Max 150mA in Stand by Max 200mA in Alarm C Electric input protection The input circuit is protected against voltage reversed polarity voltage transients surges and spikes according to MIL STD 1275A ...

Страница 26: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 18 D Terminals Figure 6 Electrical Interface ...

Страница 27: ... 2A at 30VDC or 0 5A at 250 VAC Accessory SPST N O 5A at 30VDC or 250 VAC Fault SPST N C 5A at 30VDC or 250 VAC 4 20mA Current Output Terminals 11 and 12 FAULT 2mA Typical 0 NORMAL 4 6mA 5 WARNING 9 11mA 10 ALARM 14 16mA 15 Communication Network The detector is equipped with an RS 485 communication link that can be used in installations with computerized controllers Figure 7 Flame Detector Assembl...

Страница 28: ... C to 185 F 85 C Per EN 50014 EN 50018 ATEX EExde IIB H2 T5 Temp 40 F 40 C to 160 F 70 C Per EN 50014 50018 50019 see Appendix D FM approval Design to Meet Class I Div 1 Groups B C and D Class II Div 1 Groups E F and G C Water and dust tight NEMA 250 type 6p IP 66 and IP 67 per EN 60529 D Electronic Modules Conformal coating E Electrical connection two entries Standard 3 4 14NPT conduit Optional M...

Страница 29: ...7 1 procedure IV Relative humidity of up to 95 for the operational temperature range D Salt Fog Design to meet MIL STD 810C method 509 1 procedure I Exposure to a 5 Salt Solution Fog for 48 hours E Dust Design to meet MIL STD 810C method 510 1 procedure I Exposure to a dust concentration of 0 3 frames cubic ft at a velocity of 1750 fpm for 12 hours F Vibration Design to meet MIL STD 810C method 51...

Страница 30: ... detection zone and have a completely unobstructed view of the protected area Whenever possible the detector face should be tilted down at a slight angle to prevent the accumulation of dust and dirt Do not start an installation unless all conceivable considerations regarding detector location have been taken into account To ensure optimal performance and an efficient installation the following gui...

Страница 31: ...4 For wiring use color coded conductors or suitable wire markings or labels 12 to 20 AWG wires may be used for site wiring The selection of wire gauge should be based on the number of detectors used on the same line and the distance from the control unit in compliance with specifications See Appendix A 6 4 Conduit Installation 1 To avoid water condensation water in the detector it should be instal...

Страница 32: ...recommended placed 3 0 in 76 2 mm apart on the swivel mount plate item 10 Note Skip this step if the Swivel Mount is already installed Also detector removal for maintenance purpose does not require Swivel Mount removal 2 Unpack the detector 3 Place the detector with its electrical entries conduit inlets pointing down on the holding plate of the swivel mount item 7 Secure the detector by four 4 1 4...

Страница 33: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 25 Figure 8 IR Detector and Swivel Mount Assembly ...

Страница 34: ...ion 1 Protective Set Screws 2 Ground Terminal for ATEX or Ground Thread for FM 3 Back Cover 4 Housing 5 Swivel Mount Screw Hole 6 SwivelMount 7 Holding Plate 8 Locking Screws 9 Detector Mounting Screws 10 Swivel Mount Plate 11 Swivel mounting screws Figure 9 Swivel Mount Assembly Outline Drawing ...

Страница 35: ...s now revealed 4 Remove the protective plug mounted on the detector conduit inlet pull the wires through the detector cover Item 5 and secure them firmly to the cover using the cable clamp Item 3 attached to it Use a 3 4 14NPT or M25x1 5 explosion proof conduit connection or cable gland to assemble the conduit cable to the detector 5 Connect the wires to the required terminals Item 4 according to ...

Страница 36: ...ply Return line terminal 2 Fault Relay Terminal Numbers 4 5 The Fault output is N O SPST relay at Terminals No 4 and 5 The contacts are closed when the detector is in its normal operational condition Alarm Relay Terminal Numbers 6 7 8 The Alarm output is a change over contact relay SPDT Terminal No 6 is the N O relay contact Terminal No 7 is the COMMON relay contact Terminal No 8 is the N C relay ...

Страница 37: ...d for analog 4 20mA current output as specified in paragraph 4 e Terminal No 11 output Terminal Terminal No 12 input Terminal see appendix B for more details RS 485 Terminal Numbers 13 14 Terminal Numbers 13 and 14 are used for communication network as specified in appendix C Terminal No 13 positive lead Terminal No 14 negative lead Figure 10 Terminal Board ...

Страница 38: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 30 Figure 11 Flame Detector Assembly Wiring Diagram ...

Страница 39: ...ame Detector Manual TM 20 20R Rev A January2005 31 Figure 12 IR Flame Detector with cover removed Description 1 Housing 2 Securing Cable 3 Cable Clamp 4 Terminal Board 5 Back Cover 6 Inlet Conduit 7 DIP Switch1 8 DIP Switch2 9 DIP Switch3 ...

Страница 40: ...ng time delays from 0 to 3 5 10 15 20 and 30 seconds respectively See table 10 1 Function Switch SW1 Set all eight 8 switches of SW1 to their appropriate settings ON OFF to achieve the required functional mode See paragraph 4 3 1 2 Address Switch SW2 Choose the address number from 0 to 63 for the detector and set switches 1 6 according to the selection table at paragraph 4 3 2 Note When a multi de...

Страница 41: ...5V The detector status goes back to NORMAL when the supply voltage is above 17 5V 4 Detector Inspection Visually inspects the viewing window of the detector It should be clean and clear The POWER LED should be ON and the ALARM LED should be OFF The ALARM and ACCESSORY relays should be OFF and the FAULT relay should be ON The 4 20mA Output should be 5mA 5 If any of the outputs or indications is dif...

Страница 42: ...in the specified detection level As a result the detector must generate a Fire Alarm signal Important Note If the detector is exposed to a fire simulator the Alarm and Accessory Relays and 4 20mA will be activated during the simulation Therefore automatic extinguishing systems or any external devices which may be activated during this process must be disconnected 1 Apply power to the system and wa...

Страница 43: ...drawings and specifications issued by the manufacturer 2 Do not expose the detector to radiation of any kind unless required for testing purposes 3 Do not open the detector housing while power is supplied 4 Do not touch internal parts other than the three functional switches Interference with internal circuits may impair detector performance and will invalidate manufacturer s Warranty 5 Disconnect...

Страница 44: ...he environmental conditions and specific applications The fire detection system designer will give his recommendations Use of the optional AIR SHIELD Model 20 20 920 is highly recommended and will help to keep the window clean and prevent dirt from accumulating on the window 1 Disconnect power to the detector before proceeding with any maintenance including lens cleaning 2 To clean the detector vi...

Страница 45: ...nce records should accompany it 8 6 Troubleshooting 8 6 1 Fault Indication 1 Check power supply for correct voltage polarity and wiring 2 Check detector window and reflector for cleanness If necessary clean the window as indicated in paragraph 8 3 and repeat the test 3 Disconnect the power supply to the system and check the detector s internal wiring 4 Reconnect power supply and wait approximately...

Страница 46: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 38 ...

Страница 47: ... mm2 Ohm per 100 ft Ohm 100 meter 26 0 12 0 15 4 32 14 15 24 0 16 0 24 3 42 11 22 22 0 30 0 38 1 71 5 60 20 0 51 0 61 1 07 3 50 18 0 81 0 96 0 67 2 20 16 1 22 1 43 0 43 1 40 14 1 94 2 28 0 27 0 88 12 3 09 3 40 0 17 0 55 10 4 56 6 64 0 11 0 35 A Select Number of detectors connected in one circuit B Select wiring length per your installation requirements C Refer to power supply range for voltage ext...

Страница 48: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 40 ...

Страница 49: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 41 Appendix B Typical Wiring Configurations Figure 13 Flame Detector Wiring Diagram ...

Страница 50: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 42 Figure 14 Typical wiring diagram for 4 wire controllers ...

Страница 51: ...nual TM 20 20R Rev A January2005 43 Figure 15 Typical wiring diagram for controllers with alarm fault loops Notes 1 For EOL Resistors Values See Controller Manual 2 The Accessory Relay in The Last Detector Should be Configured as an EOL Switch SW1 8 ON ...

Страница 52: ... 20R Rev A January2005 44 Figure 16 4 20mA wiring Notes The detectors are factory set to isolated 4 20mA sink version To work at non isolated 4 20mA version source connect Terminal 12 to Terminal 1 The 4 20mA meter is connected between Terminal 11 and Terminal 2 ...

Страница 53: ... connect up to 32 detectors in an addressable system with 4 wires only 2 for power 2 for communication Using repeaters the number of detectors can be much larger 32 detectors for each repeater on the same 4 wires When using the RS 485 network it is possible to read each detector status FAULT WARNING ALARM and to initiate a BIT to each detector individually Fore more details consult the factory Fig...

Страница 54: ...Spectrex Inc SharpEyeTM Single IR Flame Detector Manual TM 20 20R Rev A January2005 46 ...

Страница 55: ...ed 3 0 in 76 2 mm apart on the swivel mount plate item 10 Note Skip this step if the Swivel Mount is already installed Also detector removal for maintenance purpose does not require Swivel Mount removal 2 Unpack the detector 3 Place the detector with its cond uit inlets pointing down on the holding plate of the swivel mount Fig 8 item 7 Secure the detector by four 4 M6 screws with M6 spring washer...

Страница 56: ...ion to assemble the conduit cable to the detector 4 Connect the wires to the required terminals Item 4 according to the wiring diagram See paragraph 2 1 and figures no 19 and no 20 5 Connect the grounding wire to the ground screw outside the detector cover Item 5 The detector must be well grounded to Earth Ground for proper operation 6 Verify the wiring Improper wiring may damage the detector 7 Ch...

Страница 57: ...ctor Manual TM 20 20R Rev A January2005 49 Figure 18 Flame Detector Assembly Wiring Diagram Description 1 Modified Back Cover 5 Ground Terminal 2 EExe Chamber Cover 6 Mounting Thread 3 Slotted Screw 7 EExe Chamber 4 Terminal Block 8 Conduit Inlet ...

Страница 58: ...umbers 3 4 Terminal Numbers 3 and 4 are used for communication network as specified in appendix C Terminal No 3 positive lead Terminal No 4 negative lead Alarm Relay Terminal Numbers 3 4 The Alarm output is a NO SPST contact at Terminal Numbers 3 and 4 The contacts are closed at Alarm Mode 4 20mA Output Terminal Numbers 5 6 Terminal Numbers 5 and 6 are used for analog 4 20mA current output as spec...

Страница 59: ...e IR detectors to be tested under real fire conditions without the associated risks of an open flame Unpacking In addition to the delivery form there should be the following contents Fire Simulator with built in batteries Battery charger Optional Beam Collimator Storage Case Operating Instructions WARNING Do not open the Fire Simulator to charge the batteries or for any other reason in a hazardous...

Страница 60: ...s required between tests 5 Make sure the optical window is clean and keep the Fire Simulator in a safe place when not in use Battery Charging The Fire Simulator uses NiCd batteries as a rechargeable power source When the batteries are fully charged it will operate for at least 60 uses without recharging An internal buzzer is sounded when the voltage from the batteries is lower than the required op...

Страница 61: ...18 Electrical Power 8 VDC Max 6 x Rechargeable 1 2 VDC NiCd Batteries Current 2 5A Avg Charge 400mA for 14 Hours Environmental Temperature Range 4º F 20º C to 122º F 50º C Vibration Protection 1g 10 50hz Water and Dust IP 67 per EN 60529 Physical Dimension 11 5 x 10 1 x 3 9 in 292 x 258 x 100 mm Weight 7 5 lb 3 4 Kg Range Sensitivity Range Standard 1 Low 16 5 ft 5 m 2 High 50 ft 15 m 2 4 ft 0 75 m...

Страница 62: ...M 20 20R Rev A January2005 54 For additional details or assistance please contact 218 Little Falls Road Cedar Grove NJ 07009 USA Tel 973 239 8398 Fax 973 239 7614 Email spectrex spectrex inc com Web site www spectrex inc com Your Local Authorized Distributor ...

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