Rinsing
Ensure all equipment is thoroughly washed after deployment in salt water and allowed to dry completely before storage. Pay special attention to the pressure sensor—it should be rinsed carefully. We recommend removing its cover to ensure that any trapped sediment is fully cleared.
Removal of Bio-fauling
We realize barnacles have to be removed mechanically, but we strongly advice against using sharp objects capable of harming the polyurethane surface. We also recommend staying away from strong organic solvents such as acetone. Instead place the instrument in a 50/50 vinegar and water solution and leave it for 24h hours. Was the instrument gently with a sponge in soap/water solution. Repeat this process until the barnacles are removed. Avoid scrubbing and high pressure washers
Visual inspection
After each deployment a visual inspection of the exterior and interior of the instruments should be carried out. Check the end bell for signs of corrosion. If used frequently, one should consider replacing the end bell after 5 years to mitigate the risk of leakage. If the instrument has been subjected to environmental conditions outside the specified design limits (refer to the Technical Specification for your instrument for the limits), mechanical tolerances of non-metal components may be affected.
Data
Retrieve the data using the appropriate deployment software. We recommend to store the data in two separate locations before erasing the recorder on the instrument.
(Optional) Function test
If the visual inspection or preliminary data analysis raises concerns about the instrument’s performance, conducting a functional test is recommended to verify sensor operation.
Connector care
- Flush both halves of the connector set with compressed air and remove any dirt.
- Check that both connectors are dry. If not, let them air-dry.
- Inspect for damage, corrosion and cuts.
- Grease connectors before storage!
- Mate with a dummy plug.
Preparation for storage
Ensure that the instrument is completely dry before storing it. Disconnect the instrument from any source of power, including internal batteries while stored.
For prolonged storage at elevated temperatures close to the specified limit, or when temperature variation is uncertain, it is recommended that the screws securing the end cap be loosened in order to minimize the risk of any deformation due to temperature/stress over time (if your instrument has an accessible pressure case). A preventive maintenance routine should include regular cleaning of the instrument. Use a mild detergent and pay special attention to the transducers. Do not expose any part of the instrument to harsh chemicals. Check the pressure sensor and remove any dirt from the holes in the cap. Be careful when opening the pressure sensor cap as it is easy to dent the sensor.
Updated