Black Box on by turning the dial clockwise. Note the "on" light at the right end of
the scale. It shows you are now imposing the voltage with the Black Box. You can
then dial and maintain the desired line voltage.
If the natural voltage is .9 volts or higher, the green bar graph will show .9. If the
bar graph does not show a natural reading when everything is connected, this
means your boat's natural reading is below .5 volts. By turning the Black Box on,
you can increase or decrease your voltage to the desired level. When the Black
Box is turned on and connected to 3 or 4 downriggers, the amperage draw
averages about .1 amp.
Note: As you dial the Black Box (light bar model only) below .5 volts, the reading
does not show on the scale but you are progressively reducing the voltage until
you turn the unit off. The digital model shows the reading all the way down to
zero.
Digital Model
Plug in the power to the Black Box. Be sure the Black
Box switch is turned to the off position (all the way
counter clockwise).
Be sure the metal contact sleeve is in place on the
downrigger wire and connected to the Black Box.
Drop the downrigger to fishing depth or at lease a few
feet under the surface.
Turn the knob to the on position. Watch the digital
readout. For the first ten seconds, it will show the natural electrolysis reading of
the wire. The readout will then automatically go into the dial mode. You can then
turn the dial to whatever reading you want from zero to .9 volts.
Pulse mode. This model Black Box can be set to the pulse mode where the
Black Box pulses the voltage between the boat's natural electrolysis and the
desired dial reading. To enter the pulse mode, turn the unit on and wait 10
seconds until it shows the dialed readout. Then turn the dial off and quickly turn
it back on. You will note the reading will change back and forth. Turn the knob to
the desired set point.
To get the digital Black Box out of the pulsing mode, turn it off entirely for at least
ten seconds. When you turn it back on, it will go into the normal operating mode.
Digital Diagram
In the non pulsing mode, if the natural voltage is .9 volts or higher, the digital
display will show .9. By turning the dial, you can increase or decrease your
voltage to the desired level. When the Black Box is turned on and connected to
3 or 4 downriggers, the amperage draw averages about .1 amp. The pulse mode
can be very effective in triggering a strike, particularly when fishing is slow.
Some change in conditions can often trigger a strike.
Installation Troubleshooting
"When the light bar model Black Box is plugged in but not turned on the
green light does not show any natural electrolysis reading. Or, when the
digital model is first turned on, there is no natural electrolysis reading"
! The unit may not be getting power or the power leads may be reversed.
Turn the knob to the "on" position and see if the green light comes on.
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