53
Maintenance and Storage
ODO Sensor Rehydration
If the ODO sensor has accidentally been left dry for longer than 8
hours, it must be rehydrated. To rehydrate, soak the ODO sensor in
room temperature tap water for approximately 24 hours. After the soak,
calibrate the sensor (
Figure 69
).
ODO Sensor Cap
Optical DO sensor caps are warrantied for either 12 or 24 months depending on the model:
• ProDSS ODO Sensor Cap [SKU: 626890] =
12
months
• ODO Extended Warranty Sensor Cap [SKU: 627180] =
24
months
Depending on usage and storage practices, the cap may last longer than its warranty period.
As the ODO sensor caps ages, deterioration of the dye layer can reduce measurement stability and response time.
Periodically inspect the sensor cap for damage and large scratches in the dye layer. Replace the cap when readings
become unstable and cleaning the cap and DO recalibration do not remedy the symptoms.
Figure 69
ODO rehydration
