Specifications
3
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 SEATERM 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
instruments 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, 19plus): Remove Tygon tubing from pump
heads 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 (less than 1 day) storage, see Application Note 2D: Instructions for Care and Cleaning of
Conductivity Cells.
Upload data in memory.
1. Connect to instrument in SEATERM.
2. If you have not already done so, send command to stop sampling (STOP or #iiSTOP). **
3. Upload data in memory, using Upload button in SEATERM.
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.
Later
Task Completed?
Clean conductivity cell, as needed:
Do not clean cell if you will be sending instrument to Sea-Bird for post-deployment calibration to establish drift
during deployment.
Clean cell if you will not be performing a post-deployment calibration to establish drift.
See cleaning instructions in instrument manual and Application Note 2D: Instructions for Care and Cleaning of
Conductivity Cells.
For instrument with external pump (16plus, 16plus-IM, 19plus): Clean pump as described in
Application Note 75: Maintenance of SBE 5T and 5M Pumps.
(Annually) Inspect and (if applicable) rinse pressure port.
See instructions in instrument manual.
Send instrument to Sea-Bird for calibrations / regular inspection and maintenance.
We typically recommend that instrument be recalibrated once a year, but possibly less often if used only occasionally.
We recommend that you return instrument to Sea-Bird for recalibration. In between laboratory calibrations, take field
salinity samples to document conductivity cell drift.
Notes:
1. We cannot place instrument in our calibration bath if heavily covered with biological material or painted with anti-
foul paint. Remove as much material as possible before shipping to Sea-Bird; if we need to clean instrument before
calibrating it, we will charge you for cleaning. To remove barnacles, plug ends of conductivity cell to prevent
cleaning solution from getting into cell, then soak instrument in white vinegar for a few minutes. To remove anti-
foul paint, use Heavy Duty Scotch-Brite pad or similar material.
2. If using lithium batteries, do not ship batteries installed in instrument. See
http://www.seabird.com/customer_support/LithiumBatteriesRev2005.htm for shipping details.