In-Situ smarTROLL RDO Handheld Operators Manual - Manual (Page 37)

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Care and Maintenance
Maintenance Schedule
For best results, send the instrument to the manufacturer for factory calibration every 12
to 18 months.
User-Serviceable Parts
The user-serviceable parts on the instrument include the O-rings, and the RDO Sensor
Cap.
O-rings
The instrument has several O-rings that can be maintained by the user in order to keep
moisture from entering the instrument and damaging the electronics. Apply a very thin
layer of vacuum grease to new O-rings upon installation. The O-rings are located in the
following areas.
1 Connector (1)
2 Instrument housing (1)
3 RDO Sensor Cap (2)
RDO Fast Sensor Cap Replacement
The RDO Fast Sensor Cap has a 1-year typical life (15 months of total usage) after the
sensor takes its first reading, or 36 months from the date of manufacture. Follow the
instructions included in the RDO Sensor Cap Replacement Kit. Replacement caps are
available from In-Situ Inc. or your authorized In-Situ distributor.
Cleaning the RDO Sensor
Clean the Sensor Cap
1. Leave the cap on the sensor.
2. Rinse the sensor with clean water from a squirt bottle or spray bottle.
3. Gently wipe with a soft cloth or brush if biofouling is present.