5 - Battery Replacement
Battery life is primarily dependent on the output currents drawn. With low
output currents, battery life can exceed 50 hours, but with high currents bat-
tery life may be reduced to less than 5 hours. If a short battery life is experi-
enced, rechargeable batteries may be used but the battery must be charged
externally.
Battery replacement is by sliding the rear panel up to its stopping point re-
vealing the battery compartment. The battery may now be replaced. Only
use high quality PP3, 6AM6, MN1604 or 6LR61 batteries that will not leak.
An optional mains power supply Time Electronics order code 7643 may be
used to power the instrument via the 2.5mm jack socket at the end of the
instrument. This will cut out the internal battery and power the 1044. Note
that the tip of the 2.5mm jack plug should be positive. The 1044 is protected
against reverse polarity and will not function in this state.
If an external power supply other than the above is used it must be 12V sup-
ply and up to 200mA capability.
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