Recovery
Immediately upon recovery
Task Completed?
Rinse instrument with fresh water.
Remove locking sleeve on dummy plug or cable, slide it up cable (if applicable), and rinse connection
(still mated) with fresh water.
For instrument with pump (external or integral), stop sampling.
Connect to instrument in terminal program and send command to stop sampling (Stop or #iiStop). Stop
sampling as soon as possible upon recovery to avoid running pump dry for an extended period of time. **
If instrument has pressure sensor, record atmospheric pressure with barometer.
You can use this information during data processing to check and correct for pressure sensor drift, by
comparing to instrument’s pressure reading in air.
Gently rinse conductivity cell with clean de-ionized water, drain, and gently blow through cell to
remove larger water droplets.
• If cell is not rinsed between uses, salt crystals may form on platinized electrode surfaces. When
instrument is used next, sensor accuracy may be temporarily affected until these crystals dissolve.
• Note that vigorous flushing is not recommended if you will be sending instrument to Sea-Bird for
post-deployment calibration to establish drift during deployment.
For instrument with external pump (16plus, 16plus-IM, 16plus V2, 16plus-IM V2, 19plus, 19plus V2):
Remove Tygon tubing from pump head’s hose barbs, and rinse inside of pump head, pouring fresh
water through a hose barb.
If pump head is not rinsed between uses, salt crystals may form on impeller. Over time, this may freeze
impeller in place, preventing pump from working.
Install protective plugs in Anti-Foulant Device caps or loop Tygon tubing end-to-end around
conductivity cell for long term storage.
This will prevent dust / dirt from entering conductivity cell.
Note: For short term (< 1 day) storage, see Application Note 2D: Instructions for Care and Cleaning of
Conductivity Cells.
Upload data in memory.
1. Connect to instrument in terminal program.
2. If you have not already done so, send command to stop sampling (Stop or #iiStop). **
3. Click Upload in terminal program to upload data in memory.
4. Perform preliminary processing / data analysis to ensure you have uploaded all data, data was not
corrupted in upload process, and (if uploading converted data) instrument EEPROM was programmed
with correct calibration coefficients. If there is a problem with data, you can try to upload again now.
Once you record over data in next deployment, opportunity to correct any upload problem is gone.
** Note: Actual instrument command is dependent on communication interface and instrument.
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