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Eliminating adjacent cables or pipes ('nulling out')
In some applications a cable or pipe
carrying a signal can mask adjacent
utilities. For example, a large locate
signalcouldbeflowingalongalarge
cable that is running close to a second
cable with a smaller signal. In this
situation u-LOCATE can be expected to
locate the signal from the larger cable
but may not locate the second cable. To
locate the second cable carry out the
following:
1.
Using the Transmitter in induction mode, place the Transmitter on its side
directly over the large cable, and in-line with its direction as illustrated.
2.
The cable beneath the Transmitter should now have no locate signal transmitted
to it, but other cables in the vicinity should have the u-LOCATE Tx signal
transmitted to them and may now be located with the u-LOCATE.
CAUTION: Do not connect Direct Connect clips to live power lines. This is a
Hazardous practice and can permanently damage the transmitter. If you are
connecting to dead power lines, make provisions to avoid accidental activation
of power to the lines. Hazardous live voltage may be present at output
terminals in Direct Connect mode.
Accessories
The standard accessories provided in a u-LOCATE receiver and transmitter kit are
Direct Connect leads and a Ground stake, all contained in a soft carry bag.
Many optional accessories are also available. The following list includes the most
common ones. Please contact Schonstedt or your local dealer for details.
•
Inductive clamp (2", 4", 5" and 8.5")
•
Sondes (512 Hz)
•
Live Plug Connector
•
Flexitrace™
Inductive clamp
A variety of optional Inductive Clamps can be used to apply the transmitter locate
signalsafelytopipesandcableswithdifferentdiameters,withoutinterruptingthe
supply. Signal clamps are not suitable for connecting around lamp posts.
Plug the Clamp into the Transmitter accessory socket. Place the Clamp around the
pipe or cable ensuring the jaws are completely closed.
17
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