In-Situ smarTROLL RDO Handheld Operators Manual - Manual (Page 38)

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4. If extensive fouling or mineral build-up is present, soak the RDO Cap end (while the
cap is still installed on the sensor) in commercially available household vinegar for
15 minutes, then soak in deionized water for 15 minutes.
5. Do not use organic solvents because they will damage the sensing material. Do not
remove the cap from the sensor prior to wiping.
6. After cleaning the sensor cap, perform a 2-point calibration.
Clean the Optical Window
1. Perform this task only once per year when you replace the sensor cap.
2. Pull to remove the sensor cap.
3. Gently wipe the optical window with the supplied lens wipe.
Important: Do not wet the interior lens area with water or any
solution.