November 5, 2010
Rev1.4
50
Maintenance and repairs
Support kits
To simplify maintenance of your data logger, RBR sells Support kits with enough O-rings,
and silicone grease for 5 deployments. Please contact RBR for more information or to
place an order.
O-rings
The single most important item of maintenance on any RBR submersible data logger is care
of the O-rings. Any kind of water leak can damage the circuitry beyond repair and cause
complete data loss. Every logger’s seal depends upon its O-rings, not the end cap
tightness. Proper O-ring maintenance, therefore, is crucial.
Please see Appendix B on page 53 for O-ring specifications for each logger.
Inspecting O-rings
O-rings must be undamaged and the mating surfaces free from particles of grit, hair or small
scratches in order to preserve a seal. Before deploying the logger, carefully inspect the O-
rings that are required to maintain a seal. 1050/2050 series loggers depend upon one O-
ring in the end cap. The plastic XR series of loggers have one O-ring for each end cap and
two for each detachable sensor. Titanium versions of the XR series loggers have a backup
ring in each end cap as well. TR-1060 loggers have one O-ring seated in the middle part of
the logger case.
Give particular attention to the following areas:
•
The surface of the O-ring itself
O-ring on 1050/2050 and XR loggers
O-ring on TR-1060 loggers
Important:
O-rings may lose elasticity over time due to pressure,
even when the logger is not deployed.
We strongly suggest that
the O-rings be replaced regularly, e.g. before every deployment,
or after change of batteries, or at least once a year.
