If the signal is too weak or unstable the Receiver unit will not calculate
depth. In this case use a more powerful Sonde or use the Pinpoint
procedure described below.
Pinpoint Procedure.
Move the Receiver ahead of the Sonde.
Ensure the blade’s orientation is parallel with the
Sonde’s orientation
Increase the sensitivity slightly to find the ghost signal. Note that
between the main peak and ghost there is a Null or minimum.
Mark this position for reference.
Now move behind the Sonde and repeat step 1.
Find the Null between the ghost and main peak. See points A and B
on the diagram.
The higher the sensitivity of the Receiver the sharper the
Null’s appear.
Measure the distance between points A and B and multiply by 0.7 to
give an approximate depth measurement.
Live Plug Connector (optional extra)
The Live Plug Connector applies the Transmitter signal to a live domestic
power socket and via the domestic wiring system on the service cable
and the supply cable in the street. The signal should be detectable on
the supply system to a few hundred meters each side of the point of
application.
Note:
Do not connect the Transmitter to live cables without using a Plug
Connector or Live Cable.
Procedure
Connect the Live Plug Connector to the Transmitter and to the live
domestic power socket. Switch on the socket.
Note:
Live Plug Connector contains a protection unit to protect the user
and the Transmitter from mains voltage up to 250V.
Sweep the site holding the SuperC.A.T upright at your side. Continue
the sweep beyond the perimeter of the site. The presence of a
buried conducting cable will be indicated by a tone emitted from the
loudspeaker and a spike on the LCD’s bar graph.
Keep the SuperC.A.T blade vertical and move slowly backwards and
forwards over the conductor. Reduce the sensitivity for a narrower
response; this will allow you to pinpoint the conductor. With the
SuperC.A.T use the meter deflection to aid pinpointing. Maximum
meter deflection and audible volume from the speaker will indicate
the position of the conductor.
When directly over the conductor and with the sensitivity level set for
a narrow response, rotate the SuperC.A.T on its axis until the signal
minimum is found. The blade is now parallel with the conductor.
Trace the conductor beyond the site and mark the position as required
with chalk or paint.
1
a
b
2
3
4
5
6
