84145_UM_ SART20_B 1
EC Declaration of Conformity, available at www.jotron.
Amendment Record AMENDMENT NO. INCORP. BY DATE PAGE(S) VERSION REASON FOR CHANGE 1 ES 14.09.07 Total: 24 A New product 2 ES 02.04.
The information in this book has been carefully checked and is believed to be accurate. However, no responsibility is assumed for inaccuracies. CAUTION! This equipment contains CMOS integrated circuits. Observe handling precautions to avoid static discharge which may damage these devices. Jotron AS reserves the right to make changes without further notice to any products or modules described herein to improve reliability, function or design.
TABLE OF CONTENTS 1 1.1 2 GENERAL DESCRIPTION.................................................................................................. 7 TRON SART20 FEATURES .................................................................................................. 8 TECHNICAL SPECIFICATIONS ......................................................................................... 10 2.1 ELECTRICAL SPECIFICATIONS ..................................................................................... 10 2.
BATTERY SAFETY DATA SHEET (Form: EEC directive 91/155) (2) SAFETY ADVICE S2 Keep out of reach of children. S8 Keep container dry. S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S43 In case of fire, use D type extinguishers. Never use water. S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
1 GENERAL DESCRIPTION Tron SART20 is emergency equipment consisting of: 1. Tron SART20 radar transponder. 2. Mounting rope for life rafts / life boats. The 9 GHz radar transponder type Tron SART20 is developed by Jotron AS to meet the rules and regulations for use on vessels and life rafts in the maritime service. Tron SART20 meets the specifications for 9 GHz radar transponders for use in search and rescue operations at sea.
Maximum distance to a ship will normally be about 10 nm and approximately 30nm to a helicopter, dependent on the helicopters altitude. The transponder will not give any alarms further away than this. The primary alarm will usually be an Emergency Position Indicating Radio Beacon (EPIRB) or distress call on VHF / HF - manual or via digital selcall. The Tron SART20 should be activated immediately after activation of the EPIRB or by instruction from the rescue control centre.
Indicators: Tron SART20 is equipped with an LED and a built in buzzer to indicate operation. The LED will normally flash with a frequency of 1 per second to show that the Tron SART20 is activated. When a search and rescue unit is approaching the internal speaker will sound each time the SART20 is hit by the radar. A continuous sound from the buzzer means that the ship or helicopter is close to the Tron SART20 and the radar is hitting the Tron SART20 continuously. Battery unit.
2 TECHNICAL SPECIFICATIONS 2.1 ELECTRICAL SPECIFICATIONS Frequency: X-band (3 cm) (9.2 - 9.5 GHz) Temperature range: Operating: -20 to +55°C Storage: -30 to +65°C Radiated power: > 400 mW e.i.r.p (+26 dBm) Sweep type: 12 sweep sawtooth type Forward 7.5 us ±1 ms Return 0.4 us ±0.1 ms Starts with return sweep. Receive sensitivity: Better than -50 dBm e.r.s. Response delay: Max 0.5 ms Antenna pattern: Horizontal polarization. Omni directional radiation in the horizontal plane. Greater than ±12.
2.2 MECHANICAL SPECIFICATION Materials used: Transponder housing: Polycarbonate with 10% fibreglass. Bracket: Anodized aluminum.
3 FUNCTIONAL DESCRIPTION 3.1 GENERAL Tron SART20 consists of a housing sealed at the lower end with a bottom lid and may be split into the following main parts: 1. Bottom lid. 2. Housing with Tron SART20 electronic assembly and battery module. The housing is made of polycarbonate. 1 2 Figure 3.1, Tron SART20 disassembled 3.1.1 Tron SART20 electronic assembly Tron SART20 electronic assembly is inserted into the Tron SART20 housing. It consists of the transceiver module and antenna. 1.
3.1.2 Battery module The battery module is inserted into the Tron SART20 housing. The markings on the battery module and the Tron SART20 housing dispalys the battery expiry date. A new battery module comes complete with cable and connector and can be changed by opening the bottom lid at of the Tron SART20. Figure 3.1.2 Tron SART20 Battery module without cable and connector 3.1.3 Bottom lid The Bottom lid includes four items: 1. The winder hook 2. The screw ring 3. The light tower 4.
4 INSTALLATION Tron SART20 can be mounted several ways, depending on the options available. As a general rule, the transponder should be mounted as high as possible to increase line of sight to the search and rescue units. Metal objects close to the transponder should be avoided, these will limit the performance in the directions they are located. 4.1 BRACKETS There are three different mounting brackets available. 1. Wall bracket. 2. Lifeboat bracket. 3. Pole bracket. 4.1.
4.1.2 Lifeboat bracket The outdoor lifeboat bracket should be mounted vertically on the roof of the lifeboat (as high as possible). Activate the transponder and put it into the bracket. Secure the transponder to the bracket. The bracket will fit a pipe with a maximum diameter of 50mm. 50 Figure 4.1.2a, Lifeboat bracket. Figure 4.1.2a, Tron SART20 lifeboat bracket.
Figure 4.1.2b, Tron SART20 mounted in lifeboat bracket. 4.2 Using the telescopic pole Figure 4.2, Tron SART20 withtelescopic pole attached. A telescopic pole can be used to extend the height of the Tron SART20, inside or outside the life raft/boat. Simply extend the attached pole to the full length (app. 1,2m from the top of the Tron SART20). Make sure that the rod is locked by pulling hard when it is fully extended. The rod can now be fastened or held by a person.
4.3 Using the 10m rope The 10m. rope is meant to hang the Tron SART20 inside a life raft. Any objects that the rope can be attached to can be used. As long as the transponder is kept away from any metal objects, the performance will not be notable degraded because of the canvas of the life raft. Figure 4.3, Tron SART20 with 10m rope attached. 5 OPERATING INSTRUCTIONS 5.1 ACTIVATING TRON SART20 1. Break seal at switch. 2. Pull locking pin and make sure that the switch enters the “ON” position.
5.3 TEST OF TRON SART20 Test of the Tron SART20 is done using the ships own 3 cm radar. The radar display will show different patterns depending on the range to the transponder. See Figure 5.3a, b and c for details of the radar display. Note that the examples shown are typical and will vary with the radar performance (height, power output and sensitivity). With the transponder located close to the radar the signals will appear as rings on the radar display.
Figure Feil! Fant ikke referansekilden.b Typical display when Tron SART20 is located close (1nm) to the radar. Radar range is 10 nm. Rings are at 2 nm. Figure Feil! Fant ikke referansekilden.c Typical display when Tron SART20 is located away (>2 nm) from the radar. Radar range is 10 nm. Rings are at 2 nm.
CAUTION! While the Tron SART20 is activated it will respond to any 3 cm radars within range.Tests must be made as short as possible (5 min) to avoid interference and to avoid wasting battery capacity. 6 MAINTENANCE AND TROUBLESHOOTING 6.1 MAINTENANCE Tron SART20 requires the following maintenance: Every 6. month. The transponder should be taken out of its bracket and tested against a radar, using the procedure in chapter Feil! Fant ikke referansekilden..
6.2.1 REPLACING THE BATTERY MODULE Refer to Figure 3.1 and do the following steps: 1. Open the transponder by turning the screw ring counter clockwise. 2. Remove the rubber gasket. 3. Slide out the battery module and disconnect the battery connector. 4. Ensure the silicagel bag and anti corrosion tape supplied with the battery are fitted to inside of Tron SART20. 5. Connect the new battery module and slide it into the Tron SART20 housing. 6. Insert rubber gasket. 7.
7 SERVICE AGENTS Please look at www.jotron.com for Marine Service Agents. Jotron Group subsidiary companies: Jotron UK Ltd. Crosland Park, Off Crowhall Road Cramlington Northumberland NE23 1LA United Kingdom Tel +44 1670 712000 Fax +44 1670 590265 E-mail: sales@jotron.co.uk Jotron Asia Pte. Ltd. Changi Logistics Center 19 Loyang Way #04-26 Singapore 508724 Tel +65 65426350 Fax +65 65429415 E-mail: sales@jotron-asia.com Jotron USA, Inc.
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84145_UM_ SART20_ B
