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The
LD-8 Leak Survey Tool is a “rod-based” acoustic
listening instrument for listening for water leaks at hydrants,
meters, and valves: |
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The LD-8
includes a 4-inch short contact rod, a 4-section contact rod
set (threaded connections, each rod 13 inches) and an adapter
rod as standard
items:
The adapter rod has female threads at both ends, and it is
used for attaching the optional 40 inches Long Contact Rod
or the optional 60 inches Long Contact Rod.
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The
stereo headphones attach to the side of the LD-8 amplifier
at this connector jack:
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Two AA batteries go inside the battery
compartment like this:
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The
LD-8 amplifier display has a two-digit display of loudness,
out of range indicator, and low battery indicator:
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The
Low Battery Indicator flickers a “battery icon” when the
battery power is low and the ON/OFF Button is depressed. Replace
the
batteries when the icon appears. |
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The
SENS Range Switch inside the battery compartment has 3 positions:
With the switch in
the High position, the LD-8’s sensitivity
is highest (for listening to small leaks). With the switch
in the Low position, the LD-8’s sensitivity is lowest
(for listening to loud leaks). |
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The Out of Range Indicator flickers a “” icon
when the sound level display exceeds 99. Move the SENS Range
Switch to Medium or Low to re-scale the two-digit display to
a lower range. Each SENS Range Switch position is 10X higher
or lower in sensitivity then the adjacent position. |
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SubSurface Leak Detection
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