© 2022 Radiodetection Ltd 17
7 Press the key to accept your selection and return
to frequency menu.
8 If you wish to make any further changes follow steps
4 to 6. If you do not wish to make any further
changes press the key twice to return to the main
operation screen.
Volume control
The transmitter and locator feature an internal speaker
to provide critical warnings and assist with cable and
pipe location.
To adjust audio level:
WARNING! Muting audio on the locator will disable the
StrikeAlert audio alarm.
1 Press the key to enter the menu
2 Scroll to the VOL menu the or arrows
3 Press the key (locator) or the key (transmitter)
to enter the VOL menu
4 Scroll through the volume optioSystem Setup –
Volume Control ns using the or keys
5 Press the key to accept your selection and return
to the main menu.
6 Press the key to return to the main operation
screen.
NOTE: The locator volume may automatically lower if set
to level 5 or 4, when using alkaline batteries and if their
charge is low. When this happens, the display will shortly
flash the ‘LOW BATT’ warning and show the reduced
volume level.
4.6 Dynamic Overload
Protection™
Dynamic Overload Protection™ (DOP) allows you to
locate accurately in areas with high levels of
electromagnetic interference, such as sub-stations and
beneath high-voltage transmission lines. DOP works by
disregarding signal spikes that would otherwise
overwhelm the RD7200 locator’s digital signal
processor. DOP is an integrated feature of all RD7200
locators. No action is required by the user.
4.7 Overload warning
In cases of high levels of electromagnetic interference,
the DOP will not be able to prevent the RD7200 from
becoming overloaded. If the RD7200 becomes
overloaded, users will be alerted by a flashing mode
icon. Both the depth and current measurements will be
disabled in the event of an overload.
4.8 TruDepth™ measurement
All RD7200 locators use TruDepth™ to measure depth
automatically when a good quality reading can be
assured.
NOTE: TruDepth only indicates a locate depth when
• The locator is correctly oriented above the target
line, cable or sonde.
• The local signal conditions are assessed as be
good enough to ensure an accurate reading
To help you orientate the locator correctly, you can use
the locator’s compass feature on the screen
Depth readings are displayed according to your
preferred units of measurement.
For more information on measuring depth, refer to
Section 6.
4.9 StrikeAlert
™
StrikeAlert detects the possible presence of shallow
utilities, and warns the operator with a series of flashing
asterisks on the display and an audible alarm,
characterized by a rapid warbling sound.
StrikeAlert will activate in Power and Active locate
modes.
RD7200 locators are shipped with StrikeAlert enabled by
default; this can be disabled by accessing the StrikeAlert
(‘ALERT’) menu and setting StrikeAlert to OFF.
StrikeAlert can also be disabled using the RD Manager
Online PC software. Refer to the RD Manager Online
operation manual for further information.
WARNING! Muting audio on the locator will disable
StrikeAlert Audio alarm.
4.10 Swing Warning
The RD7200 locator is equipped with a Swing Warning
system.
In order to operate the RD7200 locator properly, this
must not be swing or tilted more than a few degrees from
the vertical. Swinging or tilting the locator will affect the
locate and depth/current accuracy.
The Swing Warning system will alert operators of
excessive swinging, to remind them to use the device
correctly
RD7200 locators are shipped with Swing Warning
enabled by default; this can be disabled by accessing
the Swing Warning (‘SWING) menu and setting it to
OFF.
WARNING! Muting audio on the locator will disable
Swing Warning Audio alarm.
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