The glass membrane of the pH sensor should be always hydrated prior to use. If the sensor is stored dry for
an extended period (more than a couple of days), the sensor performance may deteriorate.
L.3 SPECIAL CLEANING FOR OCEAN SEVEN 3xx PROBES USED TO
CARRY OUT LONG-TERM MONITORING IN SALT WATER
OCEAN SEVEN 3xx probes used to carry out long-term monitoring are
equipped with the IDRONAUT antifouling device (patent pending).
The IDRONAUT antifouling device helps to keep the confined area
surrounding the measuring sensors (see the picture ) clean.
When the probe is left for long periods to carry out monitoring in warm,
polluted and highly productive waters, the marine organisms may
attack the probe body and sensors even if protected by the antifouling
device.
Under these circumstances, we suggest a strong and special cleaning
procedure to revert the OCEAN SEVEN 3xx and sensors to their original
state.
Prepare a solution with 10% hydrochloric acid diluted in clean fresh
water. Leave the probe immersed in the solution for 1 hour. This
procedure should dissolve carbonate that may be deposited and should
remove any marine growths from the probe body and sensors.
Afterwards, carry out the cleaning procedure described in the above
paragraph “Generic Cleaning”.
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