The following maintenance operations can be performed on-site:
l
Check and change the battery or batteries if needed
l
Check cable entry points for a good seal
l
Wipe moisture off the lid gasket prior to opening to reduce water ingress
l
Minimize moisture intrusion through cabling or connectors to the inside of the enclosure
l
Check grounding rod, grounding cable, and connections
l
Inspect for loose connections
l
Remove any solar barriers, such as fallen debris, overhead branches, and leaves
l
Clean solar panel with mild detergent and a clean cloth
l
Replace desiccant bag and humidity indicator card as needed
l
Install newer firmware/OS (
Device Configuration Utility
); see
l
Look at sensor spectra using the
Device Configuration Utility
Troubleshoot tab; see
(p. 25) and
Confirm CRVW3 sensor measurements
l
Watch the LED activity as the device operates to ensure proper function; see
Be aware of the siting and installation issues discussed in
(p. 38) and
check for any discrepancies. Observe the solar panel operation (–RC option) to ensure it is
charging the battery properly. You can also double-check antenna operation using a temporary
base station radio and a computer running
LoggerNet
. The Terminal mode of the CRVW3 from
Device Configuration Utility
can also be used to perform maintenance. For more information, see
10.3 Internal battery
The lithium battery powers the internal clock and SRAM when the CRVW3 is not powered. This
voltage is displayed in the Status table
RTC_Battery
field. Replace the battery when voltage is
approximately 2.7 VDC. The internal lithium battery life is extended when the CRVW3 is installed
with an external power source. If it is used in a high-temperature application, the battery life is
shortened.
To prevent clock and memory issues, it is recommended you have Campbell Scientific proactively
replace the battery every 2 to 3 years, or more frequently when operating continuously in high
temperatures.
CRVW3 3-Channel Vibrating-Wire Data Logger
66