Leica Ultra, User Manual

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Ultra, General Information 22
2.2 General Information
Description Locators are used to detect buried conductive services emitting an electromagnetic signal
which is generated by a current passing through the service.
Transmitters are used to apply a distinct signal to conductive services, which may not
radiate electromagnetic signals or may need to be traced for a specific purpose.
The transmitter is required to make a depth or current measurement.
The locators and transmitters described within this manual will greatly increase the detec-
tion process and help to reduce the dangers and costs associated with service strikes. But
the very nature of electromagnetic location is dependent on the services being conductive
(metallic) and radiating a signal as current flows through them.
It is important to remember that a locator on its own will not detect all services. Take care
when excavating. It is generally accepted that a safe system of work should be adopted
which would include planning the work in advance, the use of utility maps, the use of loca-
tors and transmitters, and the use of safe digging practices.