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COMMERCIAL DIVERS AND
POLICE ASSISTED BY METAL
DETECTORS
Randive diver with Pulse
8X detector, Inset photo:
Recovered propeller
Randive,
a commercial diving company
based in
New Jersey, is deploying
underwater metal detectors in
their search and salvage
operations. The company was
founded in 1959 by
Randor
Erlandson,
and in the early days focused
primarily on the needs of the
maritime industry around the
ports of
New York and
New Jersey.
In the decades since, the
company has greatly expanded its
operations increasing its staff
to 16, and adding as its clients
some of the largest shipping
companies in the world.
They offer a wide range of
services including ship
maintenance and repair,
inspection and repair of dry
docks and piers, sonar surveys,
salvage work, and industrial
diving. The company is
affiliated with a number of
professional organizations
including the Association of
Diving Contractors International
and the Society of
Maritime
Port Engineers.
Randive
uses their metal detector to
assist in locating pipelines,
anchors, chains, propellers, and
other lost or missing metal
objects.
Recently the company was hired
to find
a
8 foot wide stainless steel
propeller lost from a towboat.
Apparently the prop shaft broke
when the propeller struck a
submerged object.
Although the prop was deeply
buried in the mud,
Randive€™s
experienced divers were able to
find it using their JW Fishers
Pulse 8X detector.
Another project where the
company was helped by use of the
detector was in the location and
tracking of a pipeline running
under the
Hudson River near
Manhattan. For this job, divers
attached the 16 inch search coil
to the detector€™s electronics
unit to provide greater
penetration into the soft muddy
bottom.
After successful completion of
the project
Randive€™s
VP of Operations Keith Michalski
reported, €œThe 8X is
excellent. It€™s very
sensitive, easy to use, and it
takes a beating!€
Commercial divers are not the
only ones using underwater
detectors, a number of law
enforcement and public safety
dive teams are putting these
devices to work in their search
operations. State Police dive
teams in
New York,
New Jersey, and throughout
New England are using the Pulse
8X to locate weapons used in the
commission of crimes and
disposed of in a waterway.
Criminals mistakenly believe
that by throwing a gun or knife
into a river or lake, it will be
lost forever. In reality, law
enforcement divers equipped with
an underwater metal detector
easily find these weapons.
Detectors can also assist in the
recovery of evidence as
witnessed by Lt. Joshua Gibbs of
Daphne
County Search and Rescue in
Alabama.
Daphne S&R is an all volunteer
first responder team providing
water search and rescue missions
on Mobile Bay and the Five
Rivers Delta, an area
encompassing more than 300
square miles.
The group works and trains with
the
US Coast Guard,
Baldwin
County Sheriff Flotilla,
Alabama Marine Police, and local
fire departments.
According to Lt. Gibbs, the team
used a metal detector to locate
industrial tools that were taken
in a burglary at a commercial
construction business, and then
dumped in a pond.
€œThe robbers assumed the tools
would never be found due to the
remote location of the site, and
the fact they would be covered
by water and sediment.
With the help of our Pulse 8X we
were able to locate and recover
more than two dozen pieces of
stolen property, which became
the evidence used in the
prosecution of several robbery
suspects.€
For more information on
Randive
commercial diving services go to
www.randive.com.
For more information on Daphne
Search and Rescue go to
www.daphnesar.org.
For more information on JW
Fishers underwater search
equipment
go
to
www.jwfishers.com.
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JW
Fishers Mfg. Pulse 8X underwater metal
detector
comes
with everything needed for land & water
detecting
The
Pulse 8X is a commercial grade
underwater metal detector that works as
well on land as it does in the water.
This
detector will locate a variety of
targets including jewelry, coins, shell
casings, weapons, gold bars, anchors,
ordnance, cannons, and pipelines.
The Pulse
8X uses state-of-the-art Pulse Induction
(PI) technology to detect all metals,
ferrous and nonferrous, while ignoring
minerals in the environment such as salt
water, coral, black sand, and high iron
rocks.
Fishers
detectors are not affected by the
material between the metal object and
the search coil.
The
detection range remains the same whether
detecting through air, water, silt,
sand, soil, coral, or rock.
The
detector has both audio and visual
outputs.
Audio is
provided by an underwater earphone that
tucks under the diver€™s mask strap or
into a hood.
The
visual output is displayed on a large,
easy to read meter.
The 8X
comes with a complete accessory package
that has everything needed to use it on
land, in the surf, or diving to depths
up to 200 feet.
Included
in the kit are land and underwater
earphones, a PVC handle for underwater
use, aluminum handle with telescoping
coil shaft for land use, AC battery
charger, DC battery charger, hip-mount
kit, and a heavy duty
cordura
nylon carry bag.
Rechargeable batteries power the
detector for 12 full hours.
Batteries
can easily be field replaced to provide
around the clock operation.
One of
the most unique features of Fishers
detectors are the complete line of
interchangeable coils available.
The
optional coils available are a probe
coil, 5 inch coil, 10 inch coil, 16 inch
coil, 18 inch coil with 100 foot cable
for boat deployment, and an 8 x 48 coil
that is mounted on 4 small skis for
dragging on the beach or in shallow
water.
For more
information on the Pulse 8X go to
www.jwfishers.com.
Click the
Product tab at the top of the page, then
click on hand-held metal detectors and
Pulse 8X.
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