Campbell Scientific CSBUOY-NS Buoy System - Manual (Page 19)

Section 5. Maintenance
The CSBUOY-NS has been engineered to provide many years of reliable
service. However, periodic maintenance is required to help ensure that the
system performs up to its potential. Equipment must be in good operating
condition, which requires a program of regular inspection and maintenance.
Routine and simple maintenance can be accomplished by the person in charge
of the CSBUOY-NS.
5.1 Instrumentation Maintenance
The instrumentation requires a minimum of routine maintenance. A few
preventative maintenance steps will optimize battery life and decrease the
chances of system failure.
5.1.1 Batteries
The CSBUOY-NS has been programmed to record battery voltage. This will
allow the user to determine how long a fresh battery will last. The
CSBUOY-NS is supplied with a fresh 12 VDC, 7.0 Ahr rechargeable battery.
This battery is continually recharged by the 5-watt solar panel mounted on top
of the instrument housing. Be aware of battery voltage that consistently
decreases over time, which indicates a failure in the charging circuitry.
5.1.2 Desiccant
Damage to the CR206 and wiring panel will occur if high moisture levels
inside the CSBUOY-NS instrument housing are not corrected. Enclosure
humidity is monitored by a humidity indicator card provided with the
CSBUOY-NS. It can also be more accurately monitored using the 10162
Enclosure Humidity Sensor, which is an optional sensor that can be purchased
with the CSBUOY-NS.
Regardless if the humidity sensor or the humidity indicator card is used to
monitor humidity inside the instrument housing, desiccant packs should be
replaced when relative humidity inside the instrument housing exceeds 35%.
5.1.3 Sensor Maintenance
Sensor maintenance should be performed at regular intervals, depending on the
desired accuracy and the conditions of use. A suggested maintenance schedule
is outlined below.
First week
• Check the Heyco pressure seals to ensure a tight fit.
• Check inside of the instrument housing to ensure against water leakage.
Any leakage will also be indicated by increase in humidity inside the
instrument housing.
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