For advice on the safety and suitability of this
equipment contact your local HSS Hire Shop.
Keep children, animals and bystanders out of the
work area.
Never use this equipment if you are ill, feeling
tired, or under the influence of alcohol or drugs.
This equipment should only be used by a
competent person who has read and understood
these instructions.
Check the equipment before use, if it shows signs
of damage or excessive wear, return it.
Ensure work area is tidy, well lit and ventilated.
If the equipment fails, or is damaged, return it. Do
not attempt to repair it yourself.
Information on COSHH regulations is available from your
local HSS Hire Shop.
CABLE AVOIDING TOOL (C.A.T.)…
The C.A.T. has three modes, each for detecting
services in a different way.
POWER MODE ‘P’:
Detects live electric cables which have a current
flowing through them. Some electric cables may be
live but there may not be a current flowing through
them. To ensure there is a current flowing, ask for an
appliance to be switched on, such as an electric cooker
or an immersion heater.
RADIO MODE ‘R’:
Detects re-radiated signals from metallic objects
such as pipes and cables. The re-radiated signal range
is approximately 16-20khz. In this mode the C.A.T. will
only detect electric cables and metallic pipes not plastic.
SIGNAL GENERATOR MODE ‘S’:
Detects signals produced by the signal generator.
TO USE THE C.A.T. …
IN POWER MODE:
Select the ‘P’ mode and rotate the sensitivity
control to maximum (clockwise). Lift the C.A.T. by
the handle and apply pressure to the switch. You
GETTING STARTED
Caution
The C.A.T. and Signal Generator will identify most
underground services BUT the absence of a positive
indication does not guarantee the non existence of a
pipe, cable or service.
ALWAYS EXCAVATE WITH CARE.
GENERAL SAFETY will hear a single beep test signal confirming that
the batteries are servicable. The unit is ready to
detect buried power cables.
IN RADIO MODE:
Select the ‘R’ mode and rotate the sensitivity control
to maximum (clockwise). Lift the C.A.T. by the
handle and apply pressure to the switch. You will
hear a single beep test signal confirming that the
batteries are serviceable. The unit is ready to detect
buried metal objects re-radiating a radio signal.
POWER, RADIO & SIGNAL GENERATOR MODE:
On locating a signal, reduce the sensitivity of the
signal if the meter is reading more than 2. The
metre reading rises then falls as you pass over a
service. Continue to sweep until the highest signal
(maximum response) has been obtained.
Having found the maximum response, turn the
sensitivity control down so that the meter is
reading just above 1/4 scale and the audio beep
can just be heard
Now rotate the C.A.T. about its vertical axis, when
the signal is at its greatest, the C.A.T. is positioned
at 90degrees to the path of the buried service.
HEADPHONE SOCKET:
Plugging a set of headphones into the socket will
automatically mute the speaker and enables the
operator to work in noisy environments.
SIGNAL GENERATOR…
The Signal Generator can be used to apply a
distinct signal by induction or connection. To
locate metal services which either do not carry live
electric current or do not re-radiate radio signals.
The Signal Generator is supplied with an earth
stake and crocodile clip ended connection lead set.
To access these, turn the fastener anti-clockwise
and remove the accessory hatch cover under
the unit.
The signal generator is used to apply a direct
signal to a specific service, however, the signal
may re-radiate to nearby services.
INDUCTION MODE:
Place the Generator over the service and at right
angles to it.
When the signal generator is switched to the
induces mode it emit an audible high pitched tone.
A signal will be sent down the chosen service to be
picked up by the C.A.T.
CONNECTION MODE:
Allows you to put a direct signal on to a buried
service when in connection mode.
You may apply a signal to a service in this mode by
connecting the crocodile clip connectors.
Signal
Generator
Earth
Stake
Connection
Mode Socket
Crocodile Connection
Lead Set
ON / OFF
Switch
Cable Avoiding
Tool
Headphone
Socket
Meter
Sensitivity
Control
Mode Selection
Switch
ON / OFF
Button
