User manual SIMRAD PI50 DATASHEET REV A

[. . . ] A completely new "black box" PI50 Receiver has been designed with signal reception stability as the main focus. The receiver can easily replace any former PI system installed, thus making it an easy upgrade from older systems. [. . . ] It tells you the exact distance between the trawl doors. Simrad PI Spread/Depth This is your "eye" at the cod-end. With this sensor in use, you can easily monitor the filling rate and the amount of catch in the trawl. Simrad PI Depth This sensor allows you to monitor if your net is damaged. Simrad PI SeineSounder When the sonar and echo sounder tell you how deep the school goes, it is good to know that you can place your fishing gear at the same depth. Use this sensor to monitor and hold the desired depth. Simrad PI Geometry From its position on the gear, this dual sensor measures both the depth below the surface and the height above the bottom. This dual sensor measures the physical distance between the trawl doors as well as the depth of the trawl door. Simrad PI Temperature This sensor measures the water temperature. Fishing in too warm or too cold water may be just a waste of time and money. Simrad PI Twin Spread Check the geometry of your bottom trawl, pelagic trawl and danish seine. This is achieved by making accurate measurements of the distances between the centre of the headrope (or footrope) and each of the trawl doors or wing ends. Used on twin trawls the Twin Spread and Remote sensors provide crucial information about your trawl behaviour. The three sensors working together tell you the exact distance between the two pairs of trawl doors. A maritime computer The computer provided optionally with the Simrad PI50 system is well known to our echo sounder users. Small, light and with no moving parts it is an excellent choice for demaning maritime operations. SIMRAD PI50 Technical specifications · Main units - PI50 Receiver - Computer - Colour display · Number of sensors: 6 PI50 Receiver · Interface to PC: Serial RS232 · Hydrophone plug: Same as PI30, PI32, PI44 and PI54 · Power: +24 Vdc, 250 mA (1) Minimum computer requirements Catch Monitoring Fishermen all over the world rely every day on information from the Simrad PI catch monitoring systems. Information about door spread and door stability, catch volume in the cod end, and the height of trawl are all vital for an efficient trawler. On a purse seine you receive information about net depth, sinking rate and thermo clines. All Simrad PI Sensors are made in titanium and shock absorbing material. This is required to put up with the rough environment on professional fishing vessels working in every corner of the seas. The Simrad PI50 system gives you full control from setting to catch, and thus allows you to be more profitable. [. . . ] By means of a single cable, this early system was able to offer a wealth of information about the gear. Since then, Simrad has been the world's leading manufacturer of echo sounders, sonars and catch monitoring systems. [. . . ]