Using the optional Mouse Signal Transmitter
The Mouse is a small self-contained watertight
transmittter which can be detected by the C.A.T when
switched to the Genny mode.
Method
Replace the battery in the Mouse. Attach the Mouse to
a drain rod using an appropriate connector (purchased
separately).
Place the Mouse on the ground, set the C.A.T to
Genny mode and, whilst holding the C.A.T in line with
the Mouse, check that a signal is being received.
Insert the Mouse approximately 1m/yd into the
duct/drain and adjust the C.A.T sensitivity to receive
the signal.
A ghost signal appears before and behind the main
signal position. Reduce the C.A.T sensitivity to receive
only the main signal.
Using the optional Signal Clamp
The Signal Clamp applies a Genny signal safely to a
pipe or live cable of up to 76mm (3 inches) diameter,
without interrupting the supply.
Method
Plug the Clamp into the Genny Connection socket.
Place the Clamp around the pipe or cable ensuring the
jaws are closed. Switch the Genny on. Open and close
the Clamp. If the jaws are closing correctly a drop in
speaker tone will be heard.
An earth
connection is not
necessary but
efficient signal
transfer is only
achieved if the
target conductor is
grounded at both
ends. This is
usually the case
with power cables.
The Signal Clamp can be used with either Genny or
Genny+
Using the optional Live Plug Connector
The Live Plug Connector applies the Genny signal to a
live domestic power socket and, via the domestic
wiring system, to the service cable and supply cable in
the street.
Method
Connect the Live
Plug Connector to
the Genny socket
and the power
socket.
Switch on the
power socket and
the Genny.
Note
The Live Plug
Connector provides
protection to 250Vac.
Induction
Induction is a convenient and quick way of applying the
Genny signal to a pipe or cable where limited access
does not permit direct connection or use of the Signal
Clamp.
Place the
Genny over the
assumed
position of the
conductor in the
orientation
shown.
Start tracing the cable or pipe at least five paces from
the Genny with the C.A.T in Genny mode. Working too
close to the Genny may give false readings as the
C.A.T will detect more signal directly from the Genny
than from the conductor.
If using the C.A.T+ do not attempt to take depth
readings unless the distance between the C.A.T+ and
Genny+ is greater than 30 paces (see ‘Taking depth
readings using the C.A.T+’).
Active search
using
Induction
Placing the
Genny on its
side swamps
an area with
Genny signal.
Alternatively,
use a two
man
technique to
search an
area for
buried utilities.
Taking line depth measurement using the C.A.T+
Depth measurement is only possible when using the
C.A.T+ in the Genny mode with a Genny+ transmitter.
Method
Locate the utility as
described previously.
Ensure that the
depth measurement
position is at least
30 paces from the
Genny, especially if
signal application is
by Induction method.
Hold the C.A.T still,
vertical and at right angles to the buried line. Momentarily
depress the depth button. The display will show a moving
clockface followed by the depth measurement.
Taking Mouse depth measurements using the C.A.T+
Depth measurement is only possible when using the
C.A.T+ in the Genny mode with a Mouse+ transmitter,
identified with a central orange band.
Method
Locate the main Mouse signal as previously described.
Hold the C.A.T vertically and
in line
with the Mouse.
Press
and hold
the depth button until ‘M’ appears on the
display. A clockface will appear in the top right hand
corner of the display while the depth calculation is made.
The approximate depth to the Mouse will then be
displayed on the meter.
C.A.T+ error codes
indicates very shallow conductor
indicates conductor out of range
indicates depth measurement attempted in
R or P mode which is not available.
WARNING
Do not use the C.A.T+ depth measurement to decide
if mechanical digging over buried conductor is
appropriate.
Peak
Ghost
Ghost
d
d
min 30 paces
recommended
90/NUG01ENG/1 2.01
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