User manual SIMRAD PI PORTABLE HYDROPHONE INSTALLATION REV C

[. . . ] The information contained in this document is subject to change without prior notice. Simrad AS shall not be liable for errors contained herein, or for incidental or consequential damages in connection with the furnishing, performance, or use of this document. The equipment to which this manual applies must only be used for the purpose for which it was designed. Improper use or maintenance may cause damage to the equipment or injury to personnel. [. . . ] When pursing to starboard the hydrophone is normally lowered over on the port side of the vessel. · The hydrophone cable should be made fast to the vessel's bulwarks. 851-164730 / Rev. C 3 Simrad PI Catch monitoring system / Portable hydrophone Paravane arrangement The portable hydrophone available with the PI system has a broad coverage area. For this reason, its orientation with regard to the sensors is not that critical. The hydrophone weighs approximately 700 grams (in salt water) and can be mounted on a towed paravane. Simrad can supply a simple solution for this. This solution is suitable for smaller vessels, and it is made up of a little paravane and a weight. The arrangement is designed to draw the portable hydrophone down to approximate five to ten meters depth when towed at a moderate speed (maximum of three knots). The kit contains all necessary parts (except one!) as described in the following illustration. Order number: KIT-207284 4 851-164730 / Rev. C Installation manual Paravane arrangement, parts The relevant part numbers in the arrangement kit are provided in brackets. Note that the hydrophone is NOT a part of the paravane kit, it must be ordered seperately. (2) Paravane made of durable PVC plastic (598-079553). (3) Paravane line, a two meter length of thin flag halyard (or the equivalent) shackled to the round thimble and the middle of the three holes available on the paravane (699-078608). (4) Hydrophone cable, extending approximately a half meter aft of the round thimble. Note that the length of the paravane line (3) is four times longer than the hydrophone cable (4). (5) Trolling weight, approximately 5 kg (598-079552). (6) Hydrophone cable, maximum pay-out length approximately forty meters (total cable length is 50 meters). (7) Round thimble, to which a bight in the hydrophone cable is seized to create an attachment point for the trolling weight and paravane line (598-079551). (8) Shackle, made of brass (409-078633) (9) Swivel, used between the trolling weight and the round thimble, shackles at each end (409-079550). [. . . ] (G) Bight, in hydrophone cable secured with an elastic strop to dampen dynamic stress on the hydrophone cable, not available from Simrad. 6 851-164730 / Rev. C Installation manual Portable hydrophone storage The portable hydrophone and cable must not be left on deck unattended when not in use. When stored, observe the following precautions. · Prior to storage, clean the hydrophone with fresh water. · Take care so that the cable does not chafe due to the motion of the vessel. [. . . ]