© 2020 Radiodetection Ltd
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Small clamp
The small clamp performs the same function as the
standard clamp but is useful in cramped situations where
there is insufficient access for the standard clamp.
The small clamp is suitable for cables up to 50mm (2”)
diameter.
Current Direction
™ (CD) and Current
Measurement (CM) clamp
The CD / CM clamp plugs into the accessory socket of
the locator and enables CD and current measurements
to be made on individual cables.
Figure 12.3: CD / CM Clamp
This accessory is used to identify a particular cable that
is bunched with several other cables or in close proximity
to other cables. The combination of direction current and
current magnitude is extremely useful for identification
purposes.
12.4 Transmitter clamps
The transmitter clamp fits around a pipe or cable and
safely applies a signal to a live insulated cable without
interrupting or disconnecting the supply. The clamp
applies a very discriminating signal to a target line with
reduced coupling to other lines. A clamp can sometimes
be a more effective method of applying the signal than
Direct Connection.
The target line will carry the strongest signal. The other
lines will carry the weaker return signal. If the system
comprises only two conductors, they may carry equal
signals.
WARNING! Do not clamp around uninsulated live
conductors
WARNING! Before applying or removing the clamp
around a power cable, ensure that the clamp is connected
to the transmitter at all times.
The clamp may buzz or vibrate if it is placed around a
power cable that has significant net current flow. This is
normal and does not harm the equipment.
Connecting the clamp
Figure 12.4 Transmitter output socket
Figure 12.2: Standard Clamp
Figures 12.5.
– 12.6.: Connecting transmitter clamps
