RD5100H
2
O+ Operation Manual
20
© 2018 Radiodetection Ltd
WARNING: Before applying or removing the clamp
around a power cable, ensure that the clamp is
connected to the transmitter at all times.
Selecting frequencies
It is important to select the correct or appropriate
frequency for your particular application. For more
information see Section 5.1 or refer to the application
note
“ABC & XYZ of Locating Buried Pipes and Cables”,
which is available as a free download from
To select a frequency on the locator:
1 Press the
key to cycle through available
frequencies.
2 Alternatively, hold down the
key and press the
or
keys to cycle up or down the range of
frequencies.
If locating using an active frequency you must also set
your transmitter to output the matching frequency.
You can change your transmitter’s output frequency
manually using your transmitter’s keypad.
To manually select a transmitter output
frequency:
1 Press the
key to cycle through available
frequencies.
NOTE: Some frequencies require that you connect an
accessory.
5.2 Locate modes
The RD5100H
2
O+ system supports two locate modes,
exclusively dedicated to locating cable and pipes, and to
suit your particular application or the local environment.
The locator automatically selects the required mode
dependent on the selected frequency. Available modes
are:
Guidance
Peak.
Guidance mode
Guidance arrows provide visual indication of the direction
to the target utility, and are designed to get you close to
the Peak position faster, before using the TPI to pinpoint
the target utility.
Guidance mode is automatically selected when an
available active frequency is selected on the locator
(Active frequencies include: (512Hz / 640Hz)
(i)
, 4096Hz,
8kHz, 9.8kHz, 33kHz, 65kHz, 83kHz, 131kHz, 200kHz)
NOTE.
(i)
Model configuration dependent.
Guidance mode offers good performance in distorted
fields and provides three indicators to guide the user
towards the target line.
The Left and Right Proportional Arrows become shorter
as the locator approaches the target, and the TPI needle
will move towards its central position. The Signal
Strength reading will also reach its maximum value when
the locator is positioned above the target.
Any deviation from all three indicators showing the target
position in the same location could signal the presence of
a distorted field.
In Guidance mode the following indicators are displayed:
Proportional left and right arrows
Target Position Indicator (TPI) needle (When
enabled)
Signal strength
Gain
Compass
Current
Depth.
To select Guidance mode:
Press the
key to select the required active frequency.
The Guidance mode icon
is displayed on the LCD.
To enable TPI:
Select Guidance mode then press and hold the
key to
toggle the TPI On / Off.
When using Guidance arrows
Use the proportional arrows to guide the locator along the
path of the target cable or pipe.
Peak mode
Peak mode provides the most sensitive and accurate
mode for location and depth measurement. It provides a
sharp peak response with a corresponding small
decrease in sensitivity. Peak mode is automatically
selected in Power and Radio modes.
In Peak mode the following indicators are displayed on
the LCD:
Depth (Power mode only)
Signal strength
Gain
Peak bargraph.
