Omniguard 760 series Installation And Operating Service Manual Download Page 1 | Manualshive

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760 SERIES OPTICAL

FLAME DETECTORS

Installation and operating

service manual

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Summary of Contents for 760 series

Page 1: ...760 SERIES OPTICAL FLAME DETECTORS Installation and operating service manual ...

Page 2: ...scharge of static electricity from an ungrounded source including the human body may damage the electronic circuitry of the Omniguard Series 760 Flame Detectors Use one or more of the following methods when handling or installing electrostatic sensitive parts A wrist strap connected by a ground cord to an earth ground source Heel straps toe straps or boot straps at standing workstations Conductive...

Page 3: ...ted under the conditions outlined in the fire detetion performance false alarm immunity and fire detection in the presence of false alarm sources sections of this manual Exposing a 760 detector to any IR sources within the specified field of view at distances less than 3 5 feet may cause the detector to either false alarm or alter the detector s abiltiy to meet other stated performance parameters ...

Page 4: ...sence of False Alarm Sources All tests were performed outside and third party certified for response to a 1 ft2 Propane fire at 75 ft for the Normal setting at 100 ft for the Enhanced setting and at 200 ft for the Long Distance setting with the false alarm sources at the recommended distances In all cases the detector response was less then 1 second These distances should be used as a guide when i...

Page 5: ...alse alarm immunity The automatic self test feature of the Model 760 flame detector verifies the proper function of the electronics sensors and optical surfaces This self interrogation process is implemented a minimum of four times per hour thereby providing vital fire detection reliability This is accomplished by channeling the calibrated output of an internally mounted incandescent lamp through ...

Page 6: ...30Vdc Standby Alarm Manual Test Auto Test 80 mA 100 mA 160 mA 160 mA Relay Contact rating 2 Amps 30 Vdc Resistive Note The detector contains two relays 1 Fire 1 Fault Current Loop Output 0 to 20 mA For details see Table 2 RS485 Half duplex Addressable User Interface Baud Rate 9600 bits per second 1 start bit 8 data bits and 2 stop bits Maximum Power consumption 30 Vdc Standby Alarm Manual Test Aut...

Page 7: ...dirt will not accumulate on the optical surfaces of the detector As a general rule mount the detector so that it will view the base of the area to be protected The aiming of the detectors becomes increasingly critical the greater the detection distance becomes There should be few if any obstructions between the detector and the area to be protected 5 Complete the installation by wiring the detecto...

Page 8: ...cuit board PCB in the housing assembly Using these jumpers the relays may be configured as normally open or closed The factory will ship the detectors with the following settings 1 Fire relay K2 normally open will close when there is a fire continuously present beyond the fire time delay setting will close when manual test is activated beyond the length of time for the fire delay time setting Note...

Page 9: ...etector address number in the following manner the detector will flash the hundreds digit pause 2 seconds flash the tens digit pause 2 seconds and then flash the ones digit Then it will hold the amber LED ON constantly for about 10 seconds Next the detector will repeat this sequence This process will continue for up to 5 minutes Once you are sure that the proper number is programmed then shut the ...

Page 10: ...f the delay time is 25 3 seconds the two bytes transmitted would be 0x25 and 0x30 As shown in Table 12 the status word has seven alarm bits and one valid transmission bit When bits 0 through 6 are at a logic zero the alarms are OFF When bits 0 through 6 are at a logic one the alarms are ON Bit 7 is always ON If bits 4 through 7 are set to logic one then the relay coil is open If bits 3 through 7 a...

Page 11: ...ut to any detector must not fall below 20 Vdc or exceed 30 Vdc Failure To Alarm Upon detection of fire the fire outputs will activate and the red LED visible through the LED window will turn ON If during testing a detector fails to alarm inspect the sensor windows for cleanliness Clean sensor windows are essential for effective optical fire detection Clean all the optical surfaces per the cleaning...

Page 12: ... is connected Warning In addition to detecting fire the Omniguard 760 Series Flame Detector will annunciate a warning of potentially hazardous conditions that could cause a fire When the detector senses a persistent source of infrared radiation from heat sources the Warning Outputs will change state To enable the Warning Outputs for the relay the Warning option switch position 5 must be ON When th...

Page 13: ...te 2 Stainless Steel 3 4 14 NPT 3 Aluminium M20 1 5 white 5 Stainless Steel M20 1 5 Test feature 1 Auto self test Type Omniguard model 760 Ordering number 760 X X X X X Approval 0 FM SIL2 CSA Russian Fire Certificate IECEx ATEX EMC LVD CSFM 3 SIL2 IECEx ATEX EMC LVD Fire relay configuration 0 Latching 1 Non Latching Designation Multi spectrum infrared flame detector To order please specify ...

Page 14: ...14 Firefly AB Oktober 2016 Notes ...

Page 15: ...15 Firefly AB Oktober 2016 ...

Page 16: ...Firefly AB Phone 46 0 8 449 25 00 Fax 46 0 8 449 25 01 E mail omniguardsales firefly se www omniguardbyfirefly se Address Heliosgatan 3 120 30 Stockholm Sweden Publication No 1031231 Rev D ...

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