C.A.T
3
and Genny
3
User Guide
C.A.T
3
and Genny
3
C.A.T
3
V and Genny
3
C.A.T
3
+ and Genny
3
This User Guide covers the use of the C.A.T
3
and Genny
3
series of C.A.T and Genny locator
which is available in three versions.
• C.A.T
3
providing four functions and an
audio signal indicator (speaker)
• C.A.T
3
V providing four functions, audio and
visual indication (LCD display)
• C.A.T
3
+ providing four functions, audio and
visual indication and depth estimation in
Genny mode
• Both the C.A.T
3
+ and C.A.T
3
V may be fitted
with the Power StrikeAlert™ feature that
detects shallow cables radiating power or
Genny signals
The C.A.T
3
and Genny3
3
series of locator are
identified by their grey housing.
The Genny
3
is compatible with all three
versions of C.A.T
3
and also with previous
33kHz C.A.T models.
www.radiodetection.com
Functional Test
C.A.T
3
/ C.A.T
3
V / C.A.T
3
+
• Set the Genny
3
to pulsed operation, switch on and place
on the ground
• Check there is an audible sound from the speaker
• Place the C.A.T
3
flat on the ground and pointing toward
the Genny
3
With the sensitivity switched on aModed set to maximum
sensitivity, check that the audio response (which should
be synchronised with the Genny
3
audio output) as detailed
in the table below.
Mouse transmitters for non-metallic pipe location
These devices have relatively short battery lives.
They should always be fitted with new batteries before
use. Insert one battery and use a tested C.A.T
3
, C.A.T
3
V
or C.A.T
3
+ to confirm that the Mouse can be located at
4 metres. Remember that the C.A.T
3
blade must be in
line with the Mouse which is the opposite to that which
is normally used for pipe or cable locating.
www.radiodetection.com
Radiodetection Ltd, Western Drive, Bristol BS14 0AF, UK
Tel: +44 (0) 117 976 7776 Fax: +44 (0) 117 976 7775
email:sales.uk@radiodetection.spx.com
Radiodetection, 154 Portland Road, Bridgton, Maine 04009, USA
Toll free: 1-877-247-3797 Tel: (207) 647-3185 Fax: (207) 647-9596
email bridgton@radiodetection.spx.com
Service and Maintenance
The C.A.T
3
and Genny
3
are designed so that they do not require regular calibration. However,
as with all safety equipment, it is recommended that they are serviced at least once a year
either at Radiodetection or an approved repair centre.
Radiodetection products are under continuous development and are subject to change
without notice.
C.A.T
3
Locator features
1 On/Off
Press and hold to use C.A.T
3
2 Loudspeaker
Detachable speaker for use
in noisy environments
3 LCD Meter
Only on C.A.T
3
V and C.A.T
3
+ models
4 Sensitivity Control
5 Function Switch
Selects locate mode
6 Battery compartment
To replace batteries, open the
access cover using a screwdriver
or coin. Use two LR20 or D type
alkaline batteries (or equivalent
NiMH rechargeable batteries)
WARNING
When using the C.A.T
3
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
3
Transmitter
features
1 On/Off button
Press to switch On and
Off. Press and hold to
reduce volume
2 Direct connection socket
3 Loudspeaker
4 Battery compartment
To replace batteries, open the
access cover using a screwdriver
or coin. Use four LR20 or D type
alkaline batteries (or equivalent
NiMH rechargeable batteries)
Operation of Power and Radio modes
Power and Radio modes can be used independently
of AvoidanceScan
™
and it is recommended that this
is done to pinpoint services in very congested areas.
Regularly check your C.A.T
3
and Genny
3
, in all modes,
over a cable which gives a response you are familiar with.
Using Power mode
Select Power using the function switch.
Grip the handle.
Squeeze trigger and listen for bleep indicating the batteries
are OK. Replace both batteries if there is no bleep or if the
battery icon is flashing.
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
as described in
AvoidanceScan
™
.
The presence of a
buried metallic pipe or
cable will be indicated
by a tone emitted from
the speaker. Keep the
blade of the C.A.T
3
vertical and move slowly
backwards and forwards
over the cable or pipe, reducing the sensitivity for a narrower
response. If using a C.A.T
3
V or C.A.T
3
+ use the meter
deflection to aid pinpointing. Maximum meter deflection
indicates the position of the conductor.
Trace the conductor out of the area, marking the position
with chalk or paint.
StrikeAlert
™
(check for StrikeAlert
™
Activation Sticker on
the side of the C.A.T
3
next to the meter). If the StrikeAlert
™
option is activated (C.A.T
3
V or C.A.T
3
+ versions) the mode
icon will flash a ‘
’ when the locator detects a shallow cable
radiating a power or Genny signal. This is a useful shallow
cable indicator but it should be remembered that not all live
power cables radiate a signal that the C.A.T
3
can detect.
Do not use the StrikeAlert
™
feature to confirm the area
is free from shallow cables.
ALWAYS DIG WITH CAUTION.
Using AvoidanceScan
™
Grip the handle.
Squeeze trigger and listen for bleep indicating the
batteries are OK. Replace both batteries if there is
no bleep or if the battery icon is flashing.
Turn Function Switch to A (AvoidanceScan
™
) to sweep the
area for conductors radiating Power, Radio or Genny signals.
In this mode the depth button will not be active (CAT+)
and the sensitivity control will only adjust the Genny
signal level. (P and R will be set to maximum sensitivity).
Keep the sensitivity at maximum unless there is a blanket
Genny signal, in which case turn down the sensitivity until the
blanket Genny signal is reduced to a usable level.
Note
Best results are obtained in the AvoidanceScan
™
mode when
the Genny is set to pulse operation.
Sweep the area to be excavated with a steady and
deliberate motion. Hold the C.A.T
3
with the blade vertical
and with the bottom end just above the ground. Ensure
the whole area is covered by adopting a grid pattern.
Maximum meter (C.A.T
3
V and C.A.T
3
+) and speaker
response indicates the position of a buried conductor.
If necessary switch to a dedicated mode (P,R or G)
to pinpoint the conductor, adjusting the signal level control
to give a narrow locate band over the conductor. Rotate the
C.A.T
3
to give maximum response. The C.A.T
3
is now at right
angles to the conductor. (This can be less precise
in the power mode
because of the nature
of the power signal).
Trace the buried conductor keeping the C.A.T
3
vertical and
moving it steadily from side to side. Follow the line of the
buried conductor marking it with chalk or paint across the
area to be excavated.
Switch back to AvoidanceScan
™
mode to resume the sweep
of the area to be excavated.
5 Storage compartment
Holding connection cable,
Ground stake and ground cable
6 Pulse/Continuous switch
C.A.T
3
V and C.A.T
3
+ LCD features
The main features of the C.A.T
3
V and C.A.T
3
+ are the same
as the C.A.T
3
but the addition of a liquid crystal display
brings further features.
• Depth (C.A.T
3
+ only)
• Battery indicator (flashing icon indicates
that batteries are getting low)
• Signal strength indicator
• Mode/clockface indicator
• Depth button
Note the Genny
3
is compatible with all 33kHz versions
of C.A.T
3
/ C.A.T
3
V / C.A.T
3
+
Operation of Power, Radio
and AvoidanceScan
™
modes
Regularly check your C.A.T
3
and Genny
3
, in all modes,
over a cable which gives a response you are familiar with.
AvoidanceScan
™
Use the AvoidanceScan
™
mode to undertake an initial sweep
of an area to be excavated. AvoidanceScan
™
will
detect all modes simultaneously.
Power signals:- radiated by loaded, unbalanced cables.
These signals are also found on other nearby conductors
that ‘re-radiate’ the power signal.
Radio signals:- originate from distant radio transmitters.
These penetrate the ground and are re-radiated by buried
conductors. However, they are not always present.
Genny signals:- present on buried conductors that have had
a Genny signal applied. There are various ways of applying
the Genny signal (see Locating with the C.A.T
3
and Genny
3
).
2 3 4 5 12
90/UG063ENG-03
Mode Test Distance Audio Output
Power 30cm (1ft) Pulsed, clearly audible
Radio 1.5m (5ft) Pulsed, clearly audible
Genny 15m (50ft) Pulsed, very high volume
Avoidance 15m (50ft) Pulsed, very high volume
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