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LR-24
BACKPACK ELECTROFISHER
BATTERY COMPARTMENT INTERLOCK SWITCHES
The cover of the battery compartment contains an
interlock mechanism
(A)
that automatically turns
off power to the LR-24 if the cover is opened.
When replacing the battery compartment cover,
adjust it so that it is on the inside of the molded
guides
(B)
of the pack frame. The cover must be
correctly placed before the LR-24 will operate.
SECTION 4: SAFETY FEATURES DESCRIPTIONS (CONT.)
THE LR-24 AND
TEMPERATURE
If the LR-24 is working hard on hot
days, it may overheat and shut down.
If the air temperature in the box
reaches 160F, or if the heat sink
reaches 200F, an over-temperature
error message will be displayed and
the output will be disabled until the
LR-24 cools down.
When using any of the pulsed
outputs, the LR-24 can reduce the
frequency of the output pulses
automatically based on its internal
temperature when using Thermal
Power Foldback Mode. This has the
effect of reducing the power level
of the LR-24 and therefore the heat
being produced inside the system.
This can allow the LR-24 to continue
to work instead of waiting for it
to cool down again. This power
reduction does not begin until the
LR-24 is near the point of thermal
overload, so under most conditions
it does not affect the output at all.
If unpulsed DC is being used, the
LR-24 can reduce the output voltage
if it is near thermal overload. Again,
this can allow the LR-24 to continue
working instead of waiting for it
to cool down. In both modes of
operation as the LR-24 cools down,
the output is increased back toward
the original settings.
When enabled and the temperature
of the LR-24 reaches the trip point,
*****ERROR*****
Over Temperature
Let unit cool
before use.
Fig. 4.8
FUSIBLE LINKS
The battery pack of the LR-24 incorporates
a fusible link to protect the batteries from
excessively high currents. In the event this fusible
link blows out, it must be replaced with the
same size and type as the original link in order
to continue to provide protection for the battery
pack and its wiring.
WARNING:
Replacement of
this link by anyone other than Smith-Root, Inc.
will void the warranty of the entire electrofishing
system.
TEMPERATURE SENSORS
There are internal temperature sensors which can
shut the LR-24 down if excessive temperatures are
detected. If the LR-24 is shut down due to high
temperature, an error message is displayed for as
long as the temperature is above safe limits. After
the LR-24 has cooled, the error message is cleared
and full operation is automatically restored.
The Thermal Foldback Mode (System Menu 4)
can help decrease the chance of shutdown due to
excessive temperatures (See page 11).
RIGHT:
Detail
showing relative
locations of interlock
switch inside control
box (not visible) and
magnet inside of lid.
LEFT:
Detail showing
molded guides on pack
frame. Lid must be aligned
correctly and latched for
unit to operate.
CONTINUED ON NEXT PAGE...
A
B