S4 RESCUE SART
Contents
1. Certificate QQ MED 02 07 01 30 March 2007 Regulations and Standards applied SOLAS74 as amended Regulations 111 4 11 6 2 2 IV 7 1 3 IV 14 and X 3 IMO Resolution MSC 97 73 2000HSC Code 8 2 1 2 13 17 1 14 7 1 3 IMO Resolutions A 530 13 A 694 17 A 802 19 A 813 19 ITU R M 628 3 11 93 EN 61097 1 1993 IEC 61097 1 1992 EN 60945 2002 IEC 60945 2002 Technical Construction File held by McMurdo a Division of Signature Industries Limited Silver Point Airport Service Road Portsmouth PO3 5PB UK ATTENTION The attention of the specifier purchaser installer or user is drawn to special measures and limitations to use which must be observed when the product is taken into service to maintain compliance with the above directive Details of these special methods and limitations to use are available on request and are also contained in the product installation and operator manuals This Declaration complies with EN ISO IEC 17050 1 2004 BS EN ISO 9001 Registered in England No 2800561 Registered Office Tom Cribb Road Thamesmead London SE28 OBH United Kingdom VAT No GB 626 3127 57 86 922 Iss 6 Page 2 of 2 Page 17 16 Product Warranty McMurdo is a brand operated by Signature Industries Limited Subject to the provisions set out below McMurdo warrants that this product will be free of defects in materials and workmanship for a period of 24 months from the date of purchase McMur2. light in the base of the SART will be continuously lit and the buzzer will sound every 2 seconds b Ifthe SART does not respond to the radar the red light will flash every 2 seconds and the buzzer will not sound The SART must respond to the radar to pass the test Switch off the SART by releasing the switch ring check that it returns fully to the OFF position During the annual survey perform the self test and verify the SART performance by observing the response on the radar Indicator light Page 8 7 Battery replacement The battery should be changed 5 years from the date of manufacture shown on the label or after use It is recommended that battery change should only be performed by an authorised McMurdo service agent in order that a complete assessment and integrity check can be performed The replacement battery kit is McMurdo part number 86 630 and contains all necessary components Page 9 8 Technical description A single switched antenna is used for both receive and transmit functions the switch normally connects the antenna to the receiver circuit In the standby state only the receiver portion of the SART is powered to reduce battery consumption to a minimum In this condition the indicator circuit causes the LED to flash once every two seconds On receipt of a radar pulse the video amplifier and detector circuit causes the rest of the circuitry to become active and the unit switches to transmit mode In thi
3. respond to radars which may be operating at any frequency within the 9GHz band The method chosen for the SART is to use a wideband receiver which will pick up any radar pulses in the band in conjunction with a swept frequency transmitter Each radar pulse received by the SART results in a transmission consisting of 12 forward and return sweeps through the range 9 2GHz to 9 5GHz The radar will only respond to returns close to its own frequency of operation ie within its receive bandwidth so a pulse is produced at the radar input each time the SART sweep passes through the correct frequency The text and diagrams on Page 14 show this in more detail A slow sweep would give the radar a stronger echo to deal with as the sweep would be inside the operating bandwidth for a longer period The delay for the sweep to reach the operating frequency may however lead to an unacceptable range error as delayed echoes appear to be coming from more distant objects To minimise this problem the SART uses a sawtooth response sweeping quickly then slowly for each of its twelve forward and return sweeps At long range only the slow sweeps giving the strongest returns are picked up At close range where errors are more important the fast sweeps are also detected As the first sweep is a fast one then the range error is minimised and should be less than 150 metres The timescale over which all this occurs is very short Each fast sweep takes about
4. the support pole in the antenna pocket Secure the pole to the canopy support Depending on the liferaft model the mounting patch can also be located on the outboard side of the liferaft at the doorway entrance on the boarding ramp side The SART is mounted in the same way except the pole is secured to the buoyancy support Some survival craft have the SART already packed as part of the inventory In general these models of SART are not fitted with the support pole The SART should be switched ON then suspended by its top loop from the highest point of the survival craft If the lanyard becomes unwound it may be rewound by rotating the spool in the base of the SART in the direction of the arrow Page 7 6 Self test facility Regular testing of the SART is advised The duration of the test should be limited to as short a time as possible as the SART response may be received by other vessels which are within range There are no operational differences between TEST and ON modes the rotary switch must be held in the TEST position on release it returns to the OFF position 1 2 3 Ensure compliance with all applicable Health and Safety instructions when working in proximity to a radar transmitter Locate the SART within the line of sight of an operating approved marine Radar Rotate the switch ring anticlockwise ie to the right to the TEST position and hold it in this position a Ifthe SART responds to the radar the red
5. 0 4us each slow sweep about 7 5us The complete series of twelve forward and Page 3 return sweeps is therefore complete within 100us Displayed on the PPI the spacing between each pair of dots will be 0 6 nautical miles On a long range setting a typical radar will be triggering the SART every millisecond but only during the period that the rotating radar scanner is pointing in the correct direction Most modern radars use sophisticated noise rejection techniques which prevent the display of echoes which are not synchronized with the radar s own transmissions so one radar will not normally be confused by a SART s response to a neighbouring radar The SART indicates that it has been triggered by lighting an indicator LED continuously it flashes in standby mode and by sounding an integral buzzer If no radar pulses are detected for a period exceeding 15 seconds the SART reverts to standby mode Page 4 3 Installation The preferred mounting location is inside the vessel and protected from the elements usually on the ship s bridge wing The SART should be mounted where it will not get in the way of day to day operations but where it can readily be accessed near an emergency exit in the event it is needed Do not install the SART within the ship s radar beam Fix the mounting bracket to a bulkhead in a convenient location The recommended fixing is by M5 marine grade stainless steel eg A4 316 bolts length is dependent u
6. 2 SART principle of Operation 2 22202200 n0nan0nnnnnnnnnnen 3 HVS LAN ATION at ee 5 SART General ASSEMDIY cccceseeeeseeeeeeseeeeeeeeesaneeeeeesees 6 Operating instructions uus 222020002000n0n0n nun nun nnnn nenn 7 SEIT test fac IV ee 8 Battery replacement 22 200 000n00nnnn nun nunn nun nun anna nenn 9 Technical description 22 2002000200n000n0nn0nnn nun 10 Function enalt een 11 QU FACING ans 11 DEVICE Gen eer en 11 DIMENSIONS cina n 12 Operation of marine radar for SART detection 13 Radar Range Scale nisiende era 13 SART Range EMOS ze ai 13 Radar Bandawidin aetrss einen 13 Radar olde LODES aiarren a a ro 13 Detuning the Radar ae ae 13 Gall anstelle es 13 Ant Gl ffer Sea Contour auton eee 14 ANU Clutter Rain Control nn 14 Technical Specification 2 220 20022002n0nan0n nun anne 15 Declaration of Conformity uus 2u0220002n0nnnnonannnnnn 16 Product WarranlY ne ea 18 End of Life Statement 2242202200000000nn0nnnn nun ann nnnnn 19 Battery Removal ear A rE Re 19 DISPOSAl 22 ee ee E e taal tes eld ee 19 Page 1 1 General Description The SART Search And Rescue Transponder is designed for survivor location during search and rescue operations CARRY OFF SART Supplied as one integral unit This is normally mounted in a bulkhead bracket supplied which is used t
7. PER mcmurdo 54 RESCUE SART SEARCH amp RESCUE TRANSPONDER USER MANUAL WARNINGS e This SART is an emergency device for use only in situations of grave and imminent danger e False alarms cost lives and money Help to prevent them understand how to activate and disable your equipment e Read the complete manual before installing testing or using the SART e The SART contains no user serviceable parts Return to your dealer for service e Dispose of this device safely Contents include Lithium batteries do not incinerate puncture deform or short circuit e This device emits radio frequency radiation when activated Because of the levels and duty cycles such radiation is not classed as harmful However it is recommended that you do not hold the radome while the SART is activated e If the security tab is broken the SART is not compliant with SOLAS regulations and must be repaired or replaced Transportation Because it contains a primary non rechargeable Lithium battery the SART may have special transportation requirements depending on local and international regulations in force at the time The battery pack contains 6 2g Lithium in total Transport the SART in compliance with applicable regulations for this mass of hazardous material For further information refer to the McMurdo website www mcmurdo co uk CONTENTS Se a ea General D SCIiptiOn cccscceseceeeeeeneeeneeeeseeesenesenesenesenenenes
8. Road m C m U rd O Portsmouth Hampshire UK PO3 5PB Int 44 0 23 9262 3900 www mcmurdo co uk EC DECLARATION OF CONFORMITY We declare that the following products comply with the essential requirements of Council Directive 96 98 EC on the approximation of the laws of the member States relating to Marine Equipment as amended by Commission Directives 98 85 EC 2001 53 EC 2002 75 EC and 2002 84 EC as evidenced by a EC Type Examination Certificate as detailed overleaf Products covered by this Declaration Product Type Search and Rescue Transponder SART Annex A 1 4 18 Models McMurdo S4 RESCUE SART Intended usage of products All vessels which must comply with IMO SOLAS regulations in coastal or International waters Surveillance conformity assessment is undertaken in accordance with Production Quality Assurance Module D by QinetiQ No 0191 Cody Technology Park Ively Road Farnborough GU14 0LX United Kingdom The product will carry this Conformity Marking i S XX last two digits of year mark affixed Issued on behalf of McMurdo a Division of Signature Industries Ltd nn Signed x eo Name N Jordan Title Engineering Project Manager Date C l co See overleaf for technical information Page 1 of 2 Page 16 Declaration of Conformity page 2 EC Type Examination Certificate Name of Notified Body QinetiQ 0191 Address of Notified Body Ively Road Farnborough GU14 OLX UK
9. do will not be liable to the buyer under the above warranty e for any defect arising from fair wear and tear wilful damage negligence abnormal working conditions failure to follow McMurdo s instructions whether oral or in writing including a failure to install properly and or to use batteries recommended and or supplied by McMurdo misuse or alterations or repair of the product by persons other than McMurdo or an Approved Service Agent for parts materials or equipment not manufactured by McMurdo in respect of which the buyer shall only be entitled to the benefit of any warranty or guarantee given by the manufacturer to McMurdo for the battery storage life which is specifically excluded from this warranty e if the total price for the product has not been paid THE LIMITED WARRANTY STATED ABOVE IS EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTY EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE McMurdo will not be liable for indirect special incidental or consequential damages of any kind sustained from any cause In no event shall McMurdo be liable for any breach of warranty or other claim in an amount exceeding the purchase price of the EPIRB This warranty does not affect any statutory rights of the consumer In order to be valid claims must be made under the above warranty in writing as soon as practicable after discovery of the defect or failure and withi
10. e directive McMurdo strongly recommends that this SART product and its battery pack be disposed of in a sensible and considerate manner For example do not simply discard the product in the domestic waste Instead take it to a civil recycling facility or contact McMurdo for advice Page 19 This page contains no other data Page 20 McMurdo A Division of Signature Industries Ltd Silver Point Airport Service Road Portsmouth PO3 5PB United Kingdom Phone 44 0 23 9262 3900 Fax 44 0 23 9262 3998 Email customerservice mcmurdo co uk Website www mcmurdo co uk 86 920 001 Issue 6 Page 21
11. earch and Rescue services and may endanger lives as a consequence It is also necessary that the SART and its battery pack be disposed of in a manner that does not present a threat of environmental damage 17 1 Battery Removal To disconnect the battery turn the SART over and remove the three battery retaining screws using a cross headed screwdriver Gently prise the battery from the main unit Note that this will also release the O ring seal Cover the terminals of the battery pack with sticky tape to prevent inadvertent short circuiting 17 2 Disposal The Waste Electrical and Electronic Equipment WEEE Directive aims to minimise any adverse impact of electronic equipment on the environment both during the product lifetime and when it becomes waste Within the European Union this legislation is mandated by Directive 2002 96 EC and there is similar legislation in most other continents The directive applies to all electronic products such as IT household appliances portable electronics etc and imposes requirements to collect treat recover and recycle each product at its end of life Electronic end user products must also carry a WEEE label as below and recovery and recycling information has to be provided to the recycler This SART product contains traces of lithium in the battery pack In addition it may contain lead and brominated flame retardants BFRs both in the housing material and circuit boards In keeping with th
12. firm that the SART is near to the ship 13 5 Detuning the Radar To increase the visibility of the SART in clutter conditions the radar may be detuned to reduce the clutter without reducing the SART response Radar with automatic frequency control may not permit manual detuning of the equipment Care should be taken in operating the radar detuned as other wanted navigational and anti collision information may be removed The tuning should be returned to normal operation as soon as possible 13 6 Gain For maximum range SART detection the normal maximum gain should be used Page 13 13 7 Anti Clutter Sea Control For optimum range SART detection this control should be set to the minimum Care should be exercised as targets in sea clutter may be obscured Some radar sets have automatic manual anti clutter sea control facilities in which case the operator should switch to manual 13 8 Anti Clutter Rain Control This should not be used when trying to detect SARTs as the SART responses may be removed by this control Some sets have automatic manual anti clutter rain control facilities in which case the operator should switch to manual 13 9 Radar Displays These sketches show the appearance of a SART response at different ranges MO SART response SART response SART response from distant from liferaft at close to vessel liferaft 5 6 miles medium range 2 3 lt 1 mile miles Display now Note widening of shows rings echo
13. n the warranty period referred to above Proof of purchase will be required The claim should be sent together with the product in question to the address set out below or to an Approved Service Agent Following a valid warranty claim McMurdo shall be entitled to repair or replace the product or part in question free of charge or at McMurdo s sole discretion to refund to the buyer the price of the product or a proportional part of the price McMurdo shall not be liable to a buyer who is not a consumer for any other loss or damage whether indirect special or consequential loss of profit or otherwise costs expenses or other claims for compensation which arise out of or in connection with this product In the case of a consumer McMurdo shall only be liable where other loss or damage is foreseeable Nothing shall limit McMurdo s liability for death or personal injury caused by its negligence This warranty is to be interpreted under English law All enquiries relating to this warranty or Approved Service Agents should be sent to McMurdo Silver Point Airport Service Road Portsmouth Hampshire PO3 5PB UK Telephone Int 44 0 23 9262 3900 Fax Int 44 0 23 9262 3998 Web www mcmurdo co uk Email customerservice mcmurdo co uk Page 18 17 End of Life Statement At the end of the SART s useful life it is vital that the battery be disconnected from the main unit to prevent false alarms False alarms cause expensive disruption to S
14. nging is a device carried by most ships which is used to determine the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns A typical ship s radar will transmit a stream of high power pulses on a fixed frequency anywhere between 9 2GHz and 9 5GHz It will collect the echoes received on the same frequency using a display known as a Plan Position Indicator PPI which shows the ship itself at the centre of the screen with the echoes dotted around it Echoes further from the centre of the screen are thus further from the ship and the relative or true bearing of each echo can be easily seen The SART operates by receiving a pulse from the search radar and sending back a series of pulses in response which the radar will then display as if they were normal echoes The first return pulse if it sent back immediately will appear in the same place on the PPI as a normal echo would have done Subsequent pulses being slightly delayed appear to the radar like echoes from objects further away A series of dots is therefore shown leading away from the position of the SART This distinctive pattern is much easier to spot than a single echo such as from a radar reflector Moreover the fact that the SART is actually a transmitter means that the return pulses can be as strong as echoes received from much larger objects A complication arises from the need for the SART to
15. o stow the unit on the mother vessel On abandoning to a survival craft the SART can be carried in one hand off the stricken vessel and mounted through a port in the canopy of the survival craft using the telescopic pole The main body of the SART is high visibility orange thermoplastic attached to the sealed replaceable battery pack by stainless steel fastenings The joint is sealed against water ingress by an O ring Operation is by a rotating switch ring providing ON OFF and TEST functions The ON position is reached by breaking a security tab The switch ring is spring loaded so that it returns automatically from the TEST position The Lithium battery is fitted with internal overload protection and has a five year storage life Non reversible electrical connections are provided in the SART body and battery pack to facilitate battery replacement Each SART carries a unique serial number on the label on the orange body LIFERAFT SART Supplied with or without mast Normally is packed as part of the liferaft equipment The mast version is mounted in the same manner as the carry off version the version without the mast is intended to be hung from the highest point inside the liferaft The SART itself is identical with the carry off version Page 2 2 SART principle of operation Actuating a SART enables a survival craft to show up on a search vessel s radar display as an easily recognised series of dots RADAR radio detection and ra
16. pon application The bolts should be secured with either stainless steel locking nuts or stainless steel nuts with stainless steel shake proof washers Mount the SART dome uppermost onto the bracket by locating the lugs on the SART pole mount into the slots in the bracket Push down the SART into place 58mm 3mm Figure 1 Bracket mounting holes 4 holes 5 5mm diameter NOTE Safe compass distance 1 5m Page 5 4 SART General Assembly Ring for internal liferaft mounting Radome Operating switch ring Lanyard Bulkhead Mounting bracket Page 6 5 Operating instructions Remove from bulkhead bracket Release clip and lift SART from bracket To switch on Break the security tab away from the body of the SART Rotate the switch ring clockwise ie to the left to the ON position marked by 4 Switch ring Security tab To extend the telescopic pole 1 Grasp rubber cover at bottom of pole and twist the pole to release it in the pole mount Pull the pole down and twist to lock in place in the pole mount 2 Remove rubber cover from bottom of pole allow pole sections to drop Lock sections together by twisting each section To deploy in a survival craft liferaft Extend the SART supporting pole as detailed above Tether the SART to a suitable point using the lanyard which unwinds from its base Insert the SART through the port in the canopy Position the bottom of
17. responses is about 0 6 nautical miles 1125 metres and it is necessary to see a number of responses to distinguish the SART from other responses 13 2 SART Range Errors There are inherent delays in the SART responses the SART has a trigger delay and may also have to sweep through the whole radar band before reaching the frequency of the search radar At medium ranges of about 6 nautical miles the range delay may be between about 150 metres and 0 6 nautical miles beyond the SART position As the SART is approached the radar delay of the first dot should be no more than 150 metres beyond the SART position 13 3 Radar Bandwidth This is normally matched to the radar pulse length and is usually switched with the range scale and the associated pulse length Narrow bandwidths of 3 5MHz are used with long pulses on long range and wide bandwidths of 10 25MHz with short pulses on short ranges Any radar bandwidth of less than 5MHz will attenuate the SART signal slightly so it is preferable to use a medium bandwidth to ensure optimum detection of the SART The Radar operating manual should be consulted about the particular radar parameters and bandwidth selection 13 4 Radar Side Lobes As the SART is approached side lobes from the antenna may show the SART responses as a series of arcs or concentric rings These can be removed by the use of the anti clutter sea control although it may be operationally useful to observe the side lobes as these will con
18. s caused by strength of signal Page 14 14 Technical Specification FREQUENCY POLARIZATION SWEEP RATE RESPONSE SIGNAL FORM OF SWEEP PULSE EMISSION EIRP RX SENSITIVITY DURATION TEMP RANGE RECOVERY TIME ANTENNA HEIGHT RESPONSE DELAY ANTENNA BEAM WEIGHT DIMENSIONS BUOYANCY Z ote 9 2GHz 9 5GHz Horizontal Sus per 200MHz nominal 12 sweeps Forward 7 Sus 1us Reverse 0 4us 0 1us 100us nominal gt 400MW 26dBm Better than 50dBm 0 1 mW m Note 1 96 hours in standby condition followed by a minimum 8 hours of transmission while being continuously interrogated with a pulse repetition frequency of 1kHz Operating 20 C to 55 C Storage 30 C to 65 C Following excitation 10us or less Greater or equal to 1m Note 2 0 5us or less Vertical 12 5 degrees Azimuth Omnidirectional to 2dB SART only 360g SART pole 510g SART complete 530g Overall in bracket 283 x 101 x 90mm Buoyant 1 Effective receiver sensitivity includes antenna gain 2 The effective antenna height applies to equipment required to meet Regulation 6 2 2 of Chapter Ill and 7 1 3 and 8 3 1 of Chapter IV of the 1988 Amendments to the 1974 SOLAS Convention Standards Complies with IMO Resolution A 802 19 Test and Approval Standards are specified on the Declaration of Conformity following Page 15 15 Declaration of Conformity Silver Point Airport Service
19. s condition the indicator circuit causes the LED to remain steady and the buzzer to sound every two seconds The detection of a radar pulse causes the switch to connect the antenna to the transmitter circuit The output stage is fed by a Voltage Controlled Oscillator VCO whose frequency is determined by a sweep generator When triggered by the detector the sweep generator turns on the VCO and causes it to produce exactly 12 forward and reverse frequency sweeps before shutting down again If no radar pulses are detected for a period of 15 seconds the unit reverts to standby mode Page 10 9 Function chart SART STATUS BUZZER RED LED OFF STANDBY MODE FLASHING TEST or ON EVERY 2 SECONDS ACTIVELY TRANSPONDING TEST or ON ON EVERY 2 SECONDS 10 Fault Finding Fault finding is limited to performing the self test and verifying the SART response on the radar 11 Servicing The SART contains no user serviceable parts and consequently should be returned to an authorised McMurdo service agent for repair Ensure compliance with the appropriate regulations for transportation of Lithium material as detailed in the Transportation section on the front inside cover Page 11 12 Dimensions 13 Operation of marine radar for SART detection 13 1 Radar Range Scale When looking for a SART it is preferable to use a range scale between 6 and 12 nautical miles This is because the spacing between the SART
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