User manual SIMRAD PI BOTTOM CONTACT DATASHEET REV A

[. . . ] CATCH MONITORING PI Bottom Contact sensor Best at the bottom! With patented technology and awardwinning design, Simrad provides you full control of the actions that take place at the bottom. [. . . ] This sensor will detect this, and allow you to trim your equipment for perfect balance. · Pelagic trawl: On a pelagic trawl, this sensor proves very useful when the trawl moves downwards. It will let you know immediately if the footrope touches bottom. · Purse seine: When you work with a purse seine, you need to know when the seine reaches the bottom. [. . . ] · Danish seine: Used on a Danish seine, the sensor will let you know when the net has a stable bottom contact, and when it is time to haul. · Scientific research: During scientific surveys, an exact definition of towed distance with proper ground gear contact is an essential parameter in bottom trawl swept area estimates of fish Specifications PI Systems: PI32, PI44 or PI54 Update rates: · Fast: Every 3, 2 second (approx. ) · Normal: Every 5, 3 second (approx. ) · Slow: Every 33 second (approx. ) Default update rate: Normal Lifetime between each recharge: · Fast update rate: 26 hours · Normal update rate: 40 hours · Slow update rate: 175 hours Communication frequency range: 43, 5 to 49, 5 kHz Physical properties: · Length: 246 mm · Width: 171 mm · Thickness: 123 mm · Weight in air: 4, 6 kg (w/o chain & ground weight) Charging time with PI Charger: · To 70% capacity: 1 hour · To 100% capacity: 4 hours Charging time with PS Charger: · To 100% capacity: 16 hours Specifications can be altered without prior notification. (855-165189 / Rev. A / April 2005) Simrad Horten AS Strandpromenaden 50 P. O. Box 111 NO-3191 Horten Norway Telephone: +47 33 03 40 00 Facsimile: +47 33 04 29 87 MAXIMIZING YOUR www. simrad. com PERFORMANCE AT SEA [. . . ]