Radiodetection C.A.T User Manual

User guide
C.A.T Locator features
1 On/Off
for C.A.T and Genny
Press and hold to use C.A.T
and C.A.T+ and Genny+
2 Loudspeaker
Detachable speaker for use in
noisy environment.
3 Sensitivity control
4 Function switch
Selects locate mode:
Power, Radio, Genny.
5 Battery compartment
To replace batteries, open the
access cover using a
screwdriver or coin. Use eight
LR6 or AA alkaline batteries.
WARNING
When using the C.A.T in noisy environments, the
speaker can be detached and held closer to the ear.
To avoid excessive noise exposure it is advisable
to hold the speaker no closer than 15cm (6") from
the ear. Prolonged use at this level should be
avoided.
Genny Transmitter
features
The C.A.T and Genny combine to make
1 On/Off button
the perfect general purpose tools for cable
Press and hold to reduce
avoidance. Their rugged construction
speaker volume.
ensures long life and reliability whilst the
simple controls promote effective use with 2 Direct Connection socket
minimal training.
3 Loudspeaker
For those who require pinpoint accuracy
4 Battery compartment
and depth information, the C.A.T+ and
To replace batteries, open
Genny+ add visual indication of signal
the access cover using a
strength together with a buried utility depth
screwdriver or coin. Use
measurement capability.
four LR20 or D alkaline
batteries.
5 Storage compartment
holding Connection Cable,
Ground Stake and Ground
www.radiodetection.com Cable.
C.A.T+ Locator features
2
The basic features of the C.A.T+ are the same as the
1
C.A.T but with the addition of a liquid crystal display.
4 1 Signal strength
3
2 Mode indicator
m
3 Depth
4 Depth button
5
Genny+ Transmitter features
The only differences between the Genny and Genny+
are that the signal radiating from the Genny+ and the
tone from its speaker are continuous rather than
pulsed. Operationally they are similar.
Operation of Power and Radio modes
Regularly check your C.A.T and Genny, in all
modes, over a cable which gives a response you
are familiar with.
Power mode
4
3
For detection of 'power' signals radiated by loaded
1
2 cables. These are often found 're-radiated' by other,
5
nearby conductors. Select Power using the Function
switch. Press and hold the On/Off switch. Replace
batteries if no initial 'bleep' is heard to confirm good
battery condition.
Rotate the Sensitivity
Control fully clockwise
for maximum
sensitivity but reduce
if there is a blanket
signal across the site.
Define the area to be
excavated and carry
out a grid pattern
sweep.
Sweep holding the C.A.T upright and at your side.
Contunue the sweep beyond the perimeter of the area
to be excavated.
The presence of a buried conducting pipe or cable will
be indicated by a tone emitted from the loudspeaker.
Depth
Keep the blade of the C.A.T vertical and move slowly
Mode/clockface
backwards and forwards over the conductor, reducing
the sensitivity for a narrower response. With the
Signal
C.A.T+ use the meter deflection to aid pinpointing.
strength
Maximum meter deflection
will indicate the position of
Depth
the conductor.
button
When directly over the
conductor and with the
sensitivity level set for a
narrow response, rotate
the C.A.T on its axis until
the signal minimum is
found. The blade is now in
line with the conductor.
Trace the conductor out of
the area, marking the
position as required with chalk or paint.
Radio mode
For detection of radio signals originating from distant
radio transmitters. These penetrate the ground and are
re-radiated by buried conductors. However, they are
not always present.
After completion of Power mode sweep, repeat the
procedure with Radio mode selected.
WARNING
The C.A.T will detect almost all buried conductors
but there are some which do not radiate any signal
which the C.A.T will not detect.
There are also some live power cables which the
C.A.T is not able to detect in the Power mode.
The C.A.T does not indicate whether a signal is
from a single cable or from several in close
proximity.
Note
The C.A.T+ will not provide depth information in either
the Power or Radio modes.
Locating with the C.A.T and Genny
The Genny is used to apply a tone to a buried
conductor. This signal can be traced using the C.A.T
locator switched to the Genny mode.
Direct Connection
Direct Connection is the most effective form of signal
application and is suitable for connection to a valve,
meter, junction box or other access point.
WARNING
Connection to a power cable sheath should only
be undertaken by qualified personnel.
Method
Plug the Connection lead into the Genny connection
socket and attach the red lead to the target line. If
necessary clean the connection point to ensure a good
electrical contact.
Clip the ground lead to the earth stake which should
be placed in the ground 3 to 4 paces away from, and
at right angles to the target line.
Alternatively the ground lead may be clipped to the rim
of a valve box or manhole cover. Use the spool lead to
extend the earth connection if necessary.
Switch the Genny on. A good connection is indicated
by a drop in loudspeaker tone. If there is no tone or it
is a very slow bleep, replace the batteries.
Switch the C.A.T to Genny mode and begin to trace
the line from the point of application. Pinpoint using the
same method as described for Power and Radio
modes.