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Dura-Spark L80 Operation Manual 

SPK-L80-8000/A 

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Page 

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Revision History 

Issue 

Change 

No. 

Reason for change 

Date 

A 

- 

Draft 

03/09/20 

 

 

Summary of Contents for Dura-Spark L80

Page 1: ...Dura Spark L80 Operation Manual ...

Page 2: ...________________________________________________________________________________ ___________________________________________________________________________________________________________ Page 2 of 20 Revision History Issue Change No Reason for change Date A Draft 03 09 20 ...

Page 3: ...RATION 6 4 DURA SPARK L80 POWER LEVELS 6 5 PULSE SIGNATURE 7 100J 7 200J 8 300J 9 6 DIMENSIONS 10 7 CABLING AND CONNECTIONS 11 HVJ2001 JUNCTION BOX LAYOUT AND CONNECTIONS 11 HVJ3001 JUNCTION BOX LAYOUT 11 HVJ3001 JUNCTION BOX BUZZ BAR ARRANGEMENT 12 DURA SPARK 80 40 TIP ARRANGEMENT 12 DURA SPARK 80 80 TIP ARRANGEMENT 13 HVJ3000 JUNCTION BOX INTERLOCK WIRING 14 HVC2002 CABLE 15 8 DEPLOYMENT INSTALL...

Page 4: ...y team Tel 44 0 1493 416452 Email techsupport modulustechnology com Web modulustechnology com Applied Acoustic Engineering Ltd has made every effort to ensure that the information contained in this manual is correct at time of print However our policy of continual product improvement means that we cannot assume liability for any errors which may occur These written instructions must be followed fu...

Page 5: ...ctrodes produce a consistent pulse signature and keep operational maintenance to a minimum This provides increased survey efficiency and equipment reliability as the sparker tips rarely need replacement The Dura Spark L80 is based on the CAT100 catamaran providing a stable platform whilst under tow The Dura Spark L80 consists of 2 arrays of 40 tips forming a single array of 80 tips providing a pow...

Page 6: ...uce a pressure wave With increased energy levels a secondary discharge pulse is generated after the initial discharge The time delay between initial and secondary is proportional to the level of energy being discharged The secondary pulse is commonly known as the bubble pulse The joule per tip rating should not be exceeded each sparker tip is rated to 8 10joule maximum This is a total max power of...

Page 7: ..._____________________________________________________ ___________________________________________________________________________________________________________ Page 7 of 20 5 Pulse Signature 100J Pulse Width 250 uSec V peak to peak 6 28 V Source Level 1 08837 V Bar At 1M 220 736 dB re 1 0V uPa At 1M ...

Page 8: ...______________________________________________________________ ___________________________________________________________________________________________________________ Page 8 of 20 200J Pulse Width 250 uSec V peak to peak 9 84 V Source Level 1 70534 V Bar At 1M 224 636 dB re 1 0V uPa At 1M ...

Page 9: ...______________________________________________________________ ___________________________________________________________________________________________________________ Page 9 of 20 300J Pulse Width 250 uSec V peak to peak 12 8 V Source Level 2 21833 V Bar At 1M 226 921 dB re 1 0V uPa At 1M ...

Page 10: ...0 A __________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ Page 10 of 20 6 Dimensions ...

Page 11: ...___________________________________ ___________________________________________________________________________________________________________ Page 11 of 20 AAE REFERENCE HVJ 3001 7000 2 HV CABLE FROM CSP HV3500 CABLE 2 2 7 Cabling and Connections HVJ2001 Junction Box Layout and Connections HVJ3001 Junction Box Layout ...

Page 12: ...e the HV3001 junction box with any of the following arrangements ensure that all HV equipment is turned off and the HV cable from the CSP unit is disconnected Please note that the two bottom right studs are not common connections and must be used to store the HV buzz bars when not in use Dura Spark 80 40 Tip Arrangement Connect the Red Live terminal to the Red lead of the HVC 2002 Yellow terminal ...

Page 13: ...______________________________________________________________________________________________________ Page 13 of 20 Dura Spark 80 80 Tip Arrangement Connect the Red Live terminal to the Red lead of the HVC 2002 Yellow terminal to the yellow lead and the Black GND terminal to the Black lead of the HVC 2002 The Blue Terminal is not used with the Dura Spark L80 ...

Page 14: ...______ ___________________________________________________________________________________________________________ Page 14 of 20 MICRO SWITCH JUNCTION BOX CABLE TO CSP HV3500 CABLE COM NO AAE REFERENCE HVJ 3000 4000 1 HVJ3000 Junction Box Interlock Wiring Note When used with the Dura Spark the subsea interlock is by passed using the link provided ...

Page 15: ... A __________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ Page 15 of 20 HVC2002 Cable ...

Page 16: ...g bridle should be secured to the catamaran using two stainless shackles on the two lower tow points and connected to the HV Cable Grip The cable tow point should be adjusted so that no load is applied to the electrical connections or cable clamp A quick sea trial should be undertaken to check the floatation towing characteristics of the catamaran underway at roughly 3 5 Knots Note No stress shoul...

Page 17: ...ical damage to fastenings and tow points Check the floats Check condition of anodes replace if expired The Applied Acoustic Engineering Dura Spark does not require regular servicing with the exception above operational inspections Note When storing for long periods it is recommended the catamaran is cleaned with fresh water 10 End of Life Recycling Disposal Within the UK all electronic components ...

Page 18: ...ngth 770mm Height 537mm Width 382mm Frame 740mm including floatation Weight 37kg Electrical Specification Dura Spark L80 200J 2 3J per tip to minimise bubble collapse component 350J Maximum Compatibility Source Seismic Power Supply HV Cable Dura Spark L80 CSP N 1200 Negative HVC 2002 Dura Spark L80 CSP NP 350 Negative HVC 2002 Performance Sound Output 80 Tip 220dB Typical Pulse Length 0 2mS depend...

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