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4.1.
Overview
Under normal conditions, the ADP requires little maintenance for years of reliable performance.
This section discusses some routine maintenance procedures that should be followed to ensure
long-term operation of your system.
4.2.
Cleaning the transducers
Periodic cleaning of the ADP transducer face may be needed to maintain optimal performance
in areas of high biological activity or mineral build-up. To remove material build-up on the trans-
ducer faces, simply clean with a stiff (non-metallic) brush or apply soapy water and clean with a
sponge. The transducers themselves are protected in a hard epoxy-resin and are very durable.
Minor scratches on the transducer face are normal over a period of time and will not harm them
or affect their performance. Direct impacts to the face should be avoided as this might crack the
face of the transducer and allow moisture into the electronics housing as well as causing dam-
age to the transducer itself.
4.3.
Cables and connectors
Cables and connectors used with the ADP are often the most vulnerable portion of the system.
All standard SonTek cables use a durable polyurethane jacket that provides excellent long-term
wear and abrasion resistance. Rugged underwater flexible connectors are also used along with
high-grade metal connectors to prevent connection failures. However, any cable or connector
used in the field is susceptible to damage and reasonable precautions should be taken. Inspect
all ADP cables and connectors for damage on a regular basis and replace if necessary.
GPS cables and connectors are industry standard (TNC male to male) and can be replaced if
damaged using a local supplier of GPS/survey equipment or by contacting SonTek directly.
For connectors, a light coat of silicone grease or spray is useful in facilitating the connections.
However, make sure the silicone does not contain cleaners or solvents that could damage the
rubber part of the connector. Inspect both male and female connector pins to make sure they
are clear of debris and excess grease, which could interfere with the connection or make it diffi-
cult to fully mate the connectors.
4.4.
O-rings
Make sure that O-rings on the battery compartment of the PCM are completely clean and free of
debris. Be sure that the O-ring is seated correctly, and that it is not twisted or broken. It is im-
portant to maintain a water-tight seal for the integrity of the instrument.
4.5.
Batteries
The first thing to do with a new system is charge the battery packs. Please use the charger pro-
vided. Follow these steps:
1. Plug the charger into the wall and wait for the LED to turn orange.
2. Insert the battery pack into the charging cradle. Be sure the metal contacts on the
battery pack are aligned with the metal springs in the charging cradle.
3. The LED should be red while it is charging. A full charge will take about 1-2 hours.
4. Charging is complete when the LED turns green.
5. Remove the battery from the cradle.
6. Wait for the LED to turn orange to charge another battery.
RiverSurveyor S5/M9 System Manual (February 2013)
Section 4. System Maintenance
SonTek, a Xylem brand
21
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