Sea-Bird Scientific Deep SeapHOx V2, User Manual

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Use a finger to put a small quantity (approximately 1 cm in diameter) of silicone
grease on the socket end of the connector and push as much of the lubricant as
possible into each socket.
7. Connect the connectors.
8. Use a lint-free wipe to clean any unwanted lubricant from the sides of the connectors.
7.9 Prepare sensor for storage
7.9.1 CTD storage
When the plumbing is clean, the sensor can be prepared for storage:
• Make sure the anti-fouling devices are not installed.
• Make sure there is a dummy plug and lock collar attached to the bulkhead connector.
For short-term storage up to a week, make sure to put the manufacturer-supplied colored
plugs on the intake and exhaust plumbing ports.
For long term storage:
• Attach one end of a Tygon hose section to the exhaust port, and the other end to the
intake port to isolate the conductivity cell plumbing.
• Attach the yellow protective label over the intake and exhaust ports.
7.9.2 pH sensor storage
Fill the storage cap with seawater and make sure DD-size batteries are installed. This will
keep the bias and conditioning of the electrode. Make sure that new batteries are
installed before the next deployment.
7.10 Calibration
The manufacturer calibrates every sensor to known conditions and measures the
response of the sensor. Calibration coefficients are calculated and are used to get
engineering units.
7.10.1 Manufacturer pH calibration
N O T I C E
The manufacturer recommends that the user return the sensor annually for calibration to make
sure it gives the highest level of accuracy for both pH calculation and re-processed data. The
external reference electrode is replaced as needed.
Maintenance
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