4
The battery carousel is fastened to the assembly by a bolt
through its centre. The carousel may be removed by twisting
the bolt counter-clockwise until it is free.
Access to the inner assembly may be obtained by
unscrewing the sensor end cap.
Both the battery end cap
and the battery carousel must be removed prior to
unscrewing the sensor end cap
. Damage to the back
plane will result if the wrong end of the logger is opened first.
Closing the logger is exactly the reverse of opening it.
Remember to keep the
O-rings clean and avoid scratching the O-ring mating surfaces.
Carefully
inspect the O-rings, as described in the
Inspecting the O-rings
section (p.9),
before deploying the logger.
Do not use excessive force when tightening the
end cap
; hand-tight is quite sufficient, as the seal depends upon the O-rings, not
the end cap tightness.
TR-1060 loggers
To open the TR-1060 loggers,
turn the logger counter-clockwise from the middle
(Warning: do
NOT
try to open the logger from the sensor end, which will break the circuit
card). When the logger is disassembled, handle only the logger case.
The logger case
does not unscrew completely until the O-ring is clear of its mating surface in the
body. This ensures that it will not eject at high speed should the interior of the
logger become pressurised. Carefully slide out the half logger case with the inner
assembly and battery holder.
Changing the batteries
For a discussion of battery life expectancy, please refer to “
Appendix A –
Battery lifetime calculation
(p.44).”
RBR data loggers are powered by 2/3A size 3V lithium cells. These are standard
camera batteries, and may be obtained from retail photographic or hardware
outlets (
see the following chart for model numbers
).
Note:
Do
NOT
turn the TR-1060 logger from the sensor end, which
will break the circuit board.
