RD5100H
2
O+ Operation Manual
© 2018 Radiodetection Ltd
29
Section 8 Using accessories
8.1 About accessories
The transmitter is compatible with a range of
accessories.
When an accessory is connected, the transmitter will
recognize it and will enable the mode appropriate to the
accessory.
Radiodetection supply an accessory sheet with pictures
and details of all applicable accessories which is
available on
For a full list of supported accessories that are available
for purchase, refer to the appendix.
8.2 Headphones
Radiodetection supplies an optional headphone set for
the RD5100H
2
O+ locator. The headphones feature an
adjustable headband to ensure a tight fit when used in
the field. The accessory headphones also feature volume
adjustment for both left and right speakers.
Connect the 3.5mm headphone jack into the locator’s
headphone socket, which is located next to the
accessory panel.
WARNING: Before wearing headphones, lower the
locator’s volume levels to help prevent damage to your
hearing.
WARNING: Wearing headphones may impede your
awareness to dangers in the field such as moving traffic
or other heavy machinery. Exercise caution!
8.3 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
1 Plug the clamp into the transmitter output socket.
2 Put the clamp around the pipe or cable and ensure
that the jaws are closed. Switch the transmitter on.
3 The display will show the Clamp connected icon:
Figure 8.1 - Clamp connected icon
The line should be grounded (earthed) on each side of
the clamp for the signal to transfer to the line. Ground the
line if necessary. An insulated cable may be traced even
if it has no actual ground connection, providing a
reasonable length is buried either side of the clamp to
provide capacitive coupling to ground (earth).
NOTE: It is not necessary to make a ground connection
from the transmitter when using the clamp.
Transmitter clamp range
Standard signal clamps
The standard clamps apply the transmitter signal very
selectively and effectively to a target cable up to
130mm (
5¼”) in diameter using frequencies from 8kHz to
200kHz.
The standard and small clamps have a double spring
action for positive toroidal contact.