Manual - MTL Instruments Group
Contents
1. On the dual colour version colour 2 has a higher priority so the beacon will flash colour 2 until the alarm has cleared even if colour 1 is in alarm In this case colour 1 can only be acknowledged and reset when it is visible The two control signals are isolated from each other and from the power input allowing connection to other IS circuits without the need for system certificates Connections swi RE ALARM VR1 NO LOCK IN CI 1 LOCK IN eel any Noe MANUAL RESET _Ill2 ARES AUTO RESET ENABLE eer LK2 TIMER ADJ 1 60 MINS 12 34 56 78 910 1112 13 14 Ae ate Li to i SAFE 5 HAZ AREA FLASH SUPPLY VIA in CONTROL FLASH aa POUNDER SAFETY BARRIER PWR O P CONTROL 12 26V INPUT Figure 1 Location of terminals and controls General General connection details for all models are shown in Figure 1 Manufacturers of Page 2 of 13 Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Trip Amplifiers Process Instrumentation SYR Eng UTE o NoD BSI amp Alarm Annunciators and Systems Sequential Event i fa P Alarm and Display Products Signal Conditioning amp N y T Ae COMPANION COMPANY ISO 9001 FM 14290 RTK Instruments Limited St James Business Park Knaresborough North Yorkshire England HG5 8PJ RTK Telephone 44 0 1423 580500 Facsimile 44 02. ppu O r ti n RTK Instruments Limited Telephone 44 0 1423 580500 iz j KK pe a l g St James Business Park Facsimile 44 0 1423 580501 Knaresborough North Yorkshire Web www rtkinstruments com INSTRUMENTS Instru ctions England HG5 8PJ Email enquiry rtkinstruments com DA135 Intrinsically Safe LED Beacon Introduction This manual provides the information necessary to install connect test and maintain RTK s intrinsically safe LED Beacon Description The DA135 range of LED Beacons provide powerful visual alarm signals in safe and hazardous areas The DA135 not only performs all the functions of the earlier DA134 xenon beacon but allows the user to connect a sounder and a pushbutton to make a full alarm annunciator There are two models available the standard unit which has a variable flash type this can flash in three different flash patterns single flash double flash or triple flash and also a dual colour version that can single flash with a different colour depending on the input The single colour version is available in five super bright colours red green amber blue and white The dual colour version can come in a combination of any two colours The DA135 can be operated alone or in conjunction with an intrinsically safe Sounder and pushbutton to create a single point annunciator The user can also configure the beacon using a DIL switch for e Lock in or no lock in input e Auto or Manual reset
3. Having a Temperature Classification of T6 85 C so can be used in all temperature classes Operational Conditions and Power Requirements For installations in IIC hazardous areas power for the beacon is provided from the safe area through intrinsically safe interface units eg S951 and WI1S1211 from a nominal 24VDC supply See table A for recommended interfaces The DA135 can also be used in a safe area from a 24V supply connected to terminals SK3 amp SK4 Ora 12V supply through terminals SK1 amp SK2 Mounting the beacons The beacons can be installed directly in any zone by surface mounting or by pipe post mounting using the PIP68 kit Pipe and post mounting Figure 3 Illustrates the technique for pipe post mounting using the PIP68 Kit The kit consists of an instrument mounting bracket a pipe mounting U bolt four M8 fixing screws two of 16mm length for horizontal mounting and two of 25mm length for vertical mounting and four nuts and washers Page 4 of 13 Manufacturers of Recorders Display Facias Hazardous Area Interface DA135 Rev 4 gt 4 Alarm Annunciators and Systems Sequential Event S P Alarm and Display Products Signal Conditioning amp A y Trip Amplifiers Process Instrumentation Horizontal pipe mounting Attach the instrument mounting bracket to the horizontal pipe or post diameter 40 to 80mm with the pipe mounting U bolt and two M8 nuts and washers Fix the beacon casing to the instru
4. 13 Manufacturers of nee BSI amp Alarm Annunciators and Systems Sequential Event S Recorders Display Facias Hazardous Area Interface D P DA135 Rev 4 Alarm and Display Products Signal Conditioning amp ny lt a ri ee 40 Trip Amplifiers Process Instrumentation SBR IOM COMPANY ISO 9001 FM 14290
5. 1423 580501 Web www rtkinstruments com Email enquiry rtkinstruments com INSTRUMENTS Terminal SK1 amp 2 IS power input The interface must match the following input parameters Ui 28V li 110mA Pi 0 8W The beacons may be powered from any Zener Barrier or Galvanic Isolator certified by an approved body with the same or lower output parameters Terminals SK3 amp 4 24V supply This interface is for connection to a 24V supply within a safe area this input is specially designed to protect the internal circuitry For use in a hazardous area this terminal will not be used Terminal SK5 amp 6 Control power These terminals are connected directly to terminals 1 amp 2 to allow the beacon to be controlled from the same IS supply The output parameters for these terminals are Uo 28V lo 110mA Po 0 8W This can be connected to the control inputs but will draw a small amount of current from the IS supply to the Beacon Terminal SK7 amp 8 and SK9 amp 10 Control input These inputs are isolated and certified as non energy storing Ceq 0 Leq 0 and may be connected into any IS system without affecting the safety provided the safety input parameters of the unit are not exceeded Ui 40V li 450mA Pi 1 3W Terminal SK11 amp 12 Pushbutton connection The output parameter for this terminal are Uo Ui lo 6mA Po 40mW They may be connected to any mechanically operated switch
6. T SUPPLY f Figure 6 stand alone system controlled from other IS systems Page 7 of 13 Manufacturers of nee BSI amp Alarm Annunciators and Systems Sequential Event S Recorders Display Facias Hazardous Area Interface 5 is CG DA135 Rev 4 Alarm and Display Products Signal Conditioning amp lt a Trip Amplifiers Process Instrumentation A E P ISO 9001 FM 14290 ppu RTK Instruments Limited Telephone 44 0 1423 580500 iz j KK St James Business Park Facsimile 44 0 1423 580501 Knaresborough North Yorkshire Web www rtkinstruments com INSTRUMENTS England HG5 8PJ Email enquiry rtkinstruments com Stand Alone operation with internal control power Figure 7 shows the beacon in a stand alone system It shows the beacon powered from a suitable IS interface from a 24V supply Both control signals are controlled directly from the unit with control from a switch operated in the hazardous area HAZARDOUS AREA SAFE AREA ty T T T T l y i i L i L CONTROL SWITCH f BARRIER OR IS INTERFACE Y UNIT A Figure 7 stand alone system controlled from own IS supply NOTE It is possible to have one control signal controlled directly from the unit with the other input coming from other IS systems Pag
7. When installed with a Sounder it is possible to add the extra silence function by the addition of a pushbutton This will silence the sounder until the signal is cleared or for a set time between 1 60 minutes selectable by the user These units can be used in gas group IIC IIB or IIA powered through a 28V Zener Barrier or an Isolating Interface unit An internal current limiting device combined with the exceptionally high efficiency of LED s enables both beacon and sounder to be driven through a single barrier isolator in IIC areas with consequent savings in hardware and plant cabling costs Page 1 of 13 Manufacturers of Alarm Annunciators and Systems Sequential Event Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Alarm and Display Products Signal Conditioning amp z Trip Amplifiers Process Instrumentation GOMBANION coMPANY ISO 9001 FM 14290 RTK Instruments Limited St James Business Park Knaresborough North Yorkshire England HG5 8PJ RTK Telephone 44 0 1423 580500 Facsimile 44 0 1423 580501 Web www rtkinstruments com Email enquiry rtkinstruments com INSTRUMENTS Different Versions Standard Version DA135 XX Note The colour of the unit will be added to the product name in the following format DA135 xx l e DA135 RD would be red The DA135 provides the user with a choice of three flash patterns single double or triple bursts The repetition rate fo
8. e 8 of 13 Manufacturers of te BSI Alarm Annunciators and Systems Sequential Event i GC Ss Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Alarm and Display Products Signal Conditioning amp Trip Amplifiers Process Instrumentation JUTE Op Noo 5 of vr NaC COMPANION COMPANY pee ISO 9001 FM 14290 RTK Instruments Limited St James Business Park Knaresborough North Yorkshire England HG5 8PJ Telephone 44 0 1423 580500 Facsimile 44 0 1423 580501 Web www rtkinstruments com Email enquiry rtkinstruments com DA135 Beacon Single point Annunciator with sounder Figure 8 shows the beacon connected to a sounder from terminal SK13 amp SK14 It is also connected to a pushbutton The beacon is powered from a suitable IS interface from a 24V supply The control signals are controlled directly from another IS systems When an alarm occurs the beacon will flash and the sounder activated An alarm occurring is when a input is triggered on control input 1 or 2 HAZARDOUS AREA Z SAFE AREA 7 8 9 140 11 12 13 14 QA AA 12 40V FROM AN IS SYSTEM ACK RESET BARRIER OR IS INTERFACE EPN UNIT Figure 8 DA135 connected as single point annunciator with sounder RTK INSTRUMENTS NOTE Because of the
9. ermination section front cover by releasing the two captive screws to expose the terminals for wiring up the unit The terminal board consists of 7 two way rising clamp terminals numbered 1 14 capable of accepting up to 2 5mm cable as shown in Figure 1 Maximum Cable Parameters The DA135 can be connected to any IS system without affecting the system Group Classification or any insulation or cable requirements The power and control inputs are isolated from each other therefore the safety parameters of the cables depend on the source of supply or control signal The supply is 24VDC nominal via an IS barrier or interface otten BSI amp 2 UTE o NoD Nr O COMPANION COMPANY ISO 9001 FM 14290 RTK Instruments Limited St James Business Park Knaresborough North Yorkshire England HG5 8PJ RTK Telephone 44 0 1423 580500 Facsimile 44 0 1423 580501 Web www rtkinstruments com Email enquiry rtkinstruments com INSTRUMENTS Installation Location The DA135 LED beacon has been certified to Il 1G EEx ia llC T6 When connected to an approved system it may be installed in Zone 0 Explosive gas air mixture continuously present Zone 1 Explosive gas air mixture likely to occur in normal operation Zone 2 Explosive gas air mixture not likely to occur and if it does it will only exist for a short time Be used with gases in groups GroupA Propane Group B Ethylene Group C Hydrogen
10. in the same hazardous area as the beacon providing the switch has IP20 Protection and can withstand 500Vrms insulation test to earth for 1 minute Page 3 of 13 Manufacturers of Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Trip Amplifiers Process Instrumentation gt 4 Alarm Annunciators and Systems Sequential Event S P Alarm and Display Products Signal Conditioning amp A rS Terminal SK13 amp 14 Optional sounder connection This terminal has the same maximum power safety parameters as the Zener Barrier or Galvanic Isolator powering the beacon therefore they are Uo 28V lo 110mA Po 0 8W This allows direct connection to a suitable sounder The sounder should be an intrinsically safe sounder with suitable input parameters such as the RTK DA132 If the beacon and sounder are mounted apart for intrinsic safety assessment the capacitance and inductance of the interconnecting cable should be added to that of the cable connecting the barrier or Isolator to the beacon NOTE Because of the limited power available in IS circuits the LED s flash rate will decrease on systems with a Sounder connected Because of this limitation the single flash rate should be used in these situations Cable connections Connections to the unit are made through four cable glands 20mm Isometric fine or 13 5Pg threads into a separate terminal board at the base of the unit Remove the unit cable t
11. k in but will not flash colour 1 until input 2 has cleared and acknowledged Lock in with Manual reset Position 1 on Position 2 off Alarms will lock in when either control input 1 or 2 is triggered When the alarm state is acknowledged the LED goes steady When the input returns to normal the unit will stay in the acknowledged state until the pushbutton is pressed again to reset the alarm The alarm can only be reset if the inputs have cleared Single colour version In lock in mode if the input changes from a single to a double or vice versa this it not considered as a new alarm but the flash rate will change depending on which input is present The first input is locked in until the alarm is acknowledged the alarm can only clear when both inputs have returned to normal Dual colour version If input 2 is triggered while input 1 is locked in the beacon will flash colour 2 until the contact on input 2 is acknowledged and rest It will then return back to the state of colour 1 While input 2 is present input 1 cannot be acknowledged or reset until input 2 has been acknowledged and reset If input 2 is present and input 1 is detected then this will lock in but will not flash colour 1 until input 2 has been acknowledged and reset Re alarm LK2 in EN Position When the alarm state is acknowledged the sounder is silenced if connected and the LED s goes steady If the alarm is still present after a programmable time delay then the alarm
12. label showing the connection details on the inside of the terminal housing lid e A label marking with the appropriate Serial No and manufacturing date again inside the terminal housing LED BEACON TYPE DA135 XX YY amp EEx ia IIC T6 Tamb 55 C CERT No Baseefa03ATEX0669 TERMINAL SK1 amp 2 amp 14 Ui 28V li 110mA Pi 0 8W TERMINALS SK3 amp 4 SK5 amp 6 amp 13 Uo Ui lo li Po Pi SK1 amp 2 TERMINALS SK7 amp 8 9 amp 10 Ui 40V li 450mA Pi 1 3W TERMINALS SK11 amp 12 Uo Ui SK1 amp 2 lo 6MA Po 40mW pju l1 G KNARESBOROUGH UK INSTRUMENTS HG5 8PJ Figure 4 Certification label e The certification label Figure 4 on the top of the unit shows all relevant safety information and code letters indicating LED colour s Manufacturers of Page 6 of 13 Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Trip Amplifiers Process Instrumentation CE iia Specification Standards CENELEC BS EN50014 amp 50020 amp 50284 Approved for 1G EEx ia IIC T6 Ta 20 C to 55 C Certificate No Baseefa03ATEX0669 Power supply requirements Vin Hazardous area use All models with a zener barrier 24 to 28VDc All models with a galvanic isolator 20 to 28VDC See table A for recommended IS Interfaces Current Requirements Typical when set to triple flash 24VDC Without Sounder 20mA With Sounder 45mA Steady State Acknowledged 45mA Note Current requireme
13. limited power available in IS circuits the LED s flash rate will decrease on systems with a Sounder connected Because of this limitation the single flash rate should be used in these situations DA135 Beacon as Single point Annunciator without sounder Figure 9 shows the beacon connected to a pushbutton The beacon is powered from a suitable IS interface from a 24V supply The control signals are controlled directly from another IS systems When an alarm occurs the beacon will flash An alarm occurring is when an input is triggered on control input 1 or 2 Page 9 of 13 DA135 Rev 4 Figure 9 DA135 connected as single point annunciator without sounder HAZARDOUS AREA 1 2 3 4 56 Z SAFE AREA Y F Z i f o ACK RESET BARRIER OR I S INTERFACE 24V DC UNIT Ly SUPPLY F vA yy Manufacturers of Alarm Annunciators and Systems Sequential Event Recorders Display Facias Alarm and Display Products Trip Amplifiers Process Inst Hazardous Area Interface Signal Conditioning amp rumentation SURE Re Me gt JUTE Op Noo lt 5 gt Nr aO COMPANION COMPANY P BSl a ISO 9001 FM 14290 ppu RTK Instruments Limited Telephone 44 0 1423 580500 iz j KK St James Business Park Facsimile 44 0 1423 580501 Knaresb
14. ment Page 11 of 13 Manufacturers of nee BSI amp Alarm Annunciators and Systems Sequential Event S Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Alarm and Display Products Signal Conditioning amp A Trip Amplifiers Process Instrumentation UTE Voo 5 oY vr NaC COMPANION COMPANY ISO 9001 FM 14290 RTK RTK Instruments Limited Telephone 44 0 1423 580500 St James Business Park Facsimile 44 0 1423 580501 Knaresborough North Yorkshire Web www rtkinstruments com INSTRUMENTS England HG5 8PJ Email enquiry rtkinstruments com Other RTK Products RTK Instruments produce a range of complementary products for many applications in the Industrial Control and Instrumentation field for both safe and hazardous areas as listed below All standard products come with a 5 year warranty from this ISO9001 2000 approved company Alarm Annunciators Rack Mounted Alarm Systems Sequence of Event Recorders Trip Amplifiers Trip Monitoring Systems Signal Converters and Isolators Frequency Converters Universal Panel Meters Power Supplies Loop Powered Isolators and Displays Complete range of Hazardous Area products including Intrinsically Safe Alarm annunciators Explosion Proof Alarm annunciators LED Beacons Light Towers LED indicators Illuminated switches and pushbuttons Sounders Relays IS Interface units including Zener Barriers IS Isolators Multiplexers Please ring our sales office t
15. ment mounting bracket by the two M8x16mm screws and washers and the blind insert threads in the back of the indicator casing Vertical pipe mounting Attach the instrument mounting bracket to the vertical pipe or post diameter 40 to 80mm with the pipe mounting U bolt and two M8 nuts and washers Then through the casing slots attach the casing to the instrument mounting bracket by the two M8x25mm screws and remaining two nuts and washers Direct surface mounting See Figure 2 for relevant dimensions Three methods are possible Panel mounting with back access Either by two M8 stainless steel screws into the blind insert threads 10mm deep in the back of the beacon or by two M6 pan head or M8 hexagon head stainless steel screws washers and nuts through the mounting slots in the case Panel mounting with no back access By two M6 pan head x14mm minimum stainless steel screws washers into tapped holes in the panel plate through the mounting slots in the case Wall mounting by two No 10 pan head x30mm stainless steel self tapping or wood screws and M6 washers using casting slot Note Mounting screws nuts and washers are not supplied with the beacon COMPANION COMPANY ISO 9001 FM 14290 ppu RTK Instruments Limited Telephone 44 0 1423 580500 iz j KK St James Business Park Facsimile 44 0 1423 580501 Knaresborough North Yorkshire Web www rtkinstruments com INSTRUMENTS England HG5 8PJ Email enquiry rtkinstr
16. nt is reduced for double flash and further reduced for single flash Selectable Re alarm delay User selectable re alarm delay of 1 60 minutes Fusing The Terminal board is fitted with two component approved fused these protect the internal electronics from damage if the unit is incorrectly connected and also protect the output circuit to the Sounder For safety reasons these must not be replaced but instead the whole unit or terminal board returned to RTK for repair replacement Electrical Safety Will not store or generate more than 1 5V 0 1A 20uJ or 25mW when connected to intrinsically safe equipment with a maximum open circuit voltage of not more than 28V Casing GRP glass reinforced plastic casing to IP65 Translucent acrylic dome for LED housing Good resistance to hostile environments saline atmospheres and impact damage ten BSI UTE o NoD Alarm Annunciators and Systems Sequential Event s fa P Alarm and Display Products Signal Conditioning amp N y T Ae COMPANION COMPANY ISO 9001 FM 14290 RTK RTK Instruments Limited Telephone 44 0 1423 580500 St James Business Park Facsimile 44 0 1423 580501 Knaresborough North Yorkshire Web www rtkinstruments com INSTRUMENTS England HG5 8PJ Email enquiry rtkinstruments com Cable Entry EMC Compliance Four clearance holes for glands internal plate tapped Immunity to EN61000 6 2 2001 to accept 13 5Pg DIN40330 or M20 Isometric fine Emis
17. o obtain our latest brochure Due to our policy of continuous product development we reserve the right to amend these specifications without notice Page 12 of 13 Manufacturers of ine BSI Alarm Annunciators and Systems Sequential Event Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Alarm and Display Products Signal Conditioning amp A Trip Amplifiers Process Instrumentation AAN R ISO 9001 FM 14290 ay JUTE Op NoD RTK RTK Instruments Limited Telephone 44 0 1423 580500 St James Business Park Facsimile 44 0 1423 580501 Knaresborough North Yorkshire Web www rtkinstruments com INSTRUMENTS England HG5 8PJ Email enquiry rtkinstruments com EC DECLARATION OF CONFORMITY This is to certify that the DA135 Intrinsically Safe LED Beacon Manufactured by RTK INSTRUMENTS LTD ST JAMES BUSINESS PARK KNARESBOROUGH NORTH YORKSHIRE HG5 8PJ Conforms to the protection requirements of the following directives e Council directive 89 336 EEC EMC Directive to BS EN 61000 6 4 and BS EN 61000 6 2 e Council Directive 94 9 EC ATEX Directive to EN50014 EN50020 and EN50284 The product is certified to II 1G EEx ia IIC T6 Ta 20 C to 55 C Certificate No Baseefa03ATEX0669 The Quality System is certified and monitored by Baseefa Ltd Rockhead Business Park Staden Lane Buxton Derbyshire SK17 9RZ PAUL HARTLEY MANAGING DIRECTOR Date 12 March 2008 UTE Page 13 0f
18. orough North Yorkshire Web www rtkinstruments com INSTRUMENTS England HG5 8PJ Email enquiry rtkinstruments com Single point Annunciator setup The simple single point annunciator can be set up to operate with the following functions No Lock in SW1 Position 1 off Alarms will reset immediately when the contacts clear i e the alarm is not latched although whilst in the alarm state the Acknowledge function operates normally Lock in with Auto reset SW1 Position 1 on Position 2 on Alarms will lock in when either control input 1 or 2 is triggered When the alarm state is acknowledged using the pushbutton the LED goes steady After acknowledge the LED will automatically reset as soon as the input returns to normal Single colour version In lock in mode if the input changes from a single to a double or vice versa this it not considered as a new alarm but the flash rate will change depending on which input is present The first input is locked in until the alarm is acknowledged the alarm can only clear when both inputs have returned to normal Dual colour version If input 2 is triggered while input 1 is locked in the beacon will flash colour 2 until the contact on input 2 is cleared and acknowledged It will then return back to the state of colour 1 While input 2 is present input 1 cannot be acknowledged until input 2 has been cleared and acknowledged If input 2 is present and input 1 is detected then this will loc
19. r these bursts are approximately every one second A flash pattern is triggered by a voltage being applied to the control input terminals This can be achieved through separate power signals to either terminals SK7 amp SK8 terminals SK9 amp SK10 or to both It can also take power from terminals SK5 amp SK6 to give an input from its own IS power supply to either or both the control inputs These inputs only draw a small amount of power to trigger the input Control input 1 terminals SK7 amp SK8 triggers a single flash control input 2 terminals SK9 amp SK10 triggers a double flash input on both at the same time triggers a triple flash Dual Colour Version DA135 XX YY Note The colour of the unit will be added to the product name in the following format DA135 XX YY le DA135 RD GN would be red and green The DA135 provides the user with a choice of two colours at one flash rate The repetition rate for this flash is approximately every one second Flashing of a particular colour is triggered by a voltage being applied to the control input terminals This can be achieved through separate power signals to either terminals SK7 amp SK8 terminals SK9 amp SK10 or to both It can also take power from terminals SK5 amp SK6 to give an input from its own IS power supply to either or both the control inputs Control input 1 terminals SK7 amp SK8 triggers colour 1 control input 2 terminals SK9 amp SK10 triggers colour 2
20. s com Email enquiry rtkinstruments com INSTRUMENTS Glanding The unit cable termination section contains four gland holes in the casing fitted with four blanking plugs After removal of the blanking plug or plugs cable glands may be passed through these holes onto a tapped metal plate inside the cable termination The plate will directly accept 15 3Pg DIN 40430 or M20 Isometric fine thread glands At least 10mm of thread is needed to engage into the plate Allowing for 5mm case wall thickness plus 3 175mm plate thickness The internal plate provides electrical continuity between all cable glands Users should provide suitably rated glands to either specification above Longer thread length glands will be required if a backing or lock nut is considered necessary To maintain IP rating we recommend that metal glands with rubber O ring seals be used The case itself has a clearance hole of 20 5mm and the internal plate may be removed thus allowing other types of gland to be fitted provided the case itself is not affected If the internal plate is removed lock nuts will be required for each gland and any remaining blanking plugs If electrical continuity between the glands is required then it must be established by other means e g A tagged washer under the lock nut All unused holes must be blanked off Threaded blanking plugs are supplied fitted in 4 positions Labelling The beacons are shipped with the following labels e A
21. sions to EN6100 6 4 2001 thread cable glands shipped with blanking plugs Ambient Temperature Mounting Operating 20 C to 55 C Direct mounting to walls or flat surfaces Storage 20 C to 80 C Or pipe post mounting using PIP68 kit Humidity Connections 0 95 RH non condensing Rising clamp screw terminals for cables up to 2 5mm Safe area use Protection Direct connection 24VDC to terminals SK3 amp SK4 IP65 12VDC to terminals SK1 amp SK2 Operating Instructions Single Colour Version Only Control input 1 is present the beacon will have a single flash If only control input 2 is present the beacon will have a double flash If both inputs are present the beacon will have a triple flash Dual Colour Version When Only Control input 1 is present the beacon will flash colour 1 If only control input 2 is present the beacon will flash colour 2 If both inputs are present the beacon will flash colour 2 as this is the higher priority alarm If control input 2 then clears the beacon will flash colour 1 again until this also clears Stand Alone operation controlled from other IS systems Figure 6 shows the beacon in a stand alone system with the flash control supplied from other IS systems HAZARDOUS AREA SAFE AREA 4 2 3 4 5 6 7 8 9 10 11 12 13 14 Z J YOY AB VR 12 40V FROM AN IS SYSTEM ts BARRIER OR ie IS INTERFACE adv DC R
22. ted and or conform to required company procedures to avoid the possibilities of causing a plant malfunction Galvanic Isolators MTL5025 In safe areas or workshops the voltage applied should be between 12 and 28V dc between terminals SK3 amp SK4 Table A Recommended IS interface NOTE Connecting 24V DC directly to terminals 1 amp 2 Note Any IS interface with suitable output may damage the unit y parameters may be used but for best performance interfaces in Table A are recommended or To test correct flash pattern colour occurs take power ival from terminals SK5 amp 6 and connect to terminals SK7 amp 8 equivalents or SK9 amp 10 Please contact RTK for recommended competitor IS interfaces Maintenance Routine Maintenance The only maintenance required is limited to routine periodic inspection and cleaning At monthly intervals or whenever necessary Clean the flash dome with a dry non abrasive cloth Do not use abrasive substances to clean the lens At six monthly intervals Check that the mechanical mounting of the beacon is secure Remove terminal cover and check for condensation or corrosion especially on the terminals Faulty Units Apart from the test operations and the maintenance procedures described above no other repair work can be carried out by the user as there are no replaceable parts in the beacon Faulty units should be returned to RTK for investigation and possible replace
23. uments com 125crs 148 96 11 5 A Two position mounting slots to take M8 Hex head restrained by casting or M6 pan head B Blind M8 Insert Max Penetration 15mm Figure 2 Direct Surface mounting in mm Holes four off Pg 13 5mm or M8 x 16 stainless Me Stamiess MUTA NAS NET 20mm ISOmetric fine thread steel screw and washer M8 stainless cable glands minimum 10mm steel U bolt thread length required f Hex head held against flats in case moulding lt MB x 25 hex head stainless steel screw F nut washer Nylon coated stainless steel pipe clamp For mounting on pipes from 40 to 80mm O D a Horizontal pipe mounting Figure 3 Pipe post mounting in mm Page 5 of 13 Manufacturers of te BSI Alarm Annunciators and Systems Sequential Event S Recorders Display Facias Hazardous Area Interface 5 2 DA135 Rev 4 Alarm and Display Products Signal Conditioning amp lt a Trip Amplifiers Process Instrumentation ENT p ISO 9001 FM 14290 RTK Instruments Limited St James Business Park Knaresborough North Yorkshire England HG5 8PJ RTK Telephone 44 0 1423 580500 Facsimile 44 0 1423 580501 Web www rtkinstrument
24. will re activate In manual reset mode if the alarm has cleared the timer will reset and the alarm will need to cleared by a reset If the input returns before a reset the timer will start running again The re alarm time is user selectable between 1 and 60 minutes by rotating VR1 clockwise to increase the time and anti clockwise to decrease the time This re alarm function can be disabled by moving LK2 into the disable position DE NOTE When a Sounder is connected the flash rate of the LED s will decrease Page 10 of 13 Manufacturers of nee BSI amp Alarm Annunciators and Systems Sequential Event S Recorders Display Facias Hazardous Area Interface DA135 Rev 4 Alarm and Display Products Signal Conditioning amp A Trip Amplifiers Process Instrumentation R COMPANION COMPANY UTE Voo ISO 9001 FM 14290 ppu RTK Instruments Limited Telephone 44 0 1423 580500 iz j KK St James Business Park Facsimile 44 0 1423 580501 Knaresborough North Yorkshire Web www rtkinstruments com INSTRUMENTS England HG5 8PJ Email enquiry rtkinstruments com Testing Recommended IS Interfaces Warning z For intrinsically safe applications make sure all testing is arse ial Sue E B i marrage carried out according to the appropriate nationally Zone 1 20V Zener Barriers accepted code of practice If fault finding is necessary IIC 28VDC MTL7728 MTL7778AC make sure permission to carry out the work is gran
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