Sizes are to the closest 0.5 mm. Lifetimes are based on actual measured current consumption of individual tags, along with battery manufacturer's published capacity ratings. Sonotronics does not test or guarantee these published specifications. Ranges are based on calculated and tested achievable ranges under good field conditions. Good field conditions are defined as deep sea water at sea state zero, with no temperature stratification.
There is a small battery drain while transmitters are "asleep" with their magnets on them. This drain may be negligible in long life transmitters, but on short lifetime transmitters can reduce their remaining lifetime by 25% per 3 months, or more. If transmitters are to be stored for any period of time greater than 1 month before deployment, it is recommended that the user contact the Sonotronics for battery loss information.
Recommended procedure is to remove the magnets on the transmitters at the lab the morning of the project, while listening to each transmitter to ensure it is activated. Occasionally a reed switch will "stick", and the transmitter will remain deactivated even after magnet removal. If this occurs, rap lightly on the side of the transmitter with a pencil and it will activate.
It is crucial that you listen to the transmitter with a receiver when deactivating, as the spot for replacing the magnet can be touchy. The line drawn on the side of the transmitter is intended as a reference, you must still listen with a receiver. Store the transmitters one inch apart. If they are any closer, the magnets can cancel each other, causing the transmitters to operate.
We at Sonotronics recognize that there are many special requirements that come up relating to transmitters or other equipment needed for researchers projects. We consider ourselves a research and development company and are dedicated to fulfilling these needs whenever possible. We have designed and built extreme depth transmitters, transducer components, advanced telemetry encoding, equipment for special military applications, custom receivers and hydrophones, and many other custom design projects for our customers. If you have special requirements, please contact us and we will discuss them with you.
Please contact us if you have require any additional information.
