Instruction Manual Cable Avoidance Tool Cable Avoidance Tool XD Signal Generator SG-A Signal Generator SG-V CABLE AVOIDANCE TOOLS
WARNINGS The C.Scope Cable Avoidance Tools locate services radiating a detectable field. There may be some services that do not radiate and cannot be located. ALWAYS EXCAVATE WITH CARE Do not use the equipment outside of the temperature range -10˚C to +50˚C as the batteries may cease to function adequately. Geographical conditions such as hills and mountains can effectively screen radio signals and prevent a detectable ground current. The C.
Contents Warnings Inside Front Cover Features Using the Signal Generator 12 Batteries 13 Cable Avoidance Tool (and XD Model) 1 Direct connection 14 Signal Generator (SG-A and SG-V Models) 2 Street lighting 16 Locator Operating Modes Signal Clamp/ Injector 17 Power 4 Searching 18 Radio 5 Tracing 19 Generator 6 Using the Locator Induction 20 Searching 21 Batteries 7 Multiple Services 23 Holding the Locator 8 Inductive Sweep 24 Searching 9 Non-Metallic Pipe Tracing 2
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Locator Operating Modes: Power Mode In Power Mode the locator detects power signals. These power signals are present on all current carrying electricity cables although not all are detectable. These power signals may also flow along other buried conductors such as metal gas and water pipes. Limitations of Power Mode Not all electricity cables can be found using the Power mode.
Locator Operating Modes: Radio Mode In Radio mode, the locator detects signals from radio transmitters. These signals flow through the ground and will tend to follow the line of least resistance such as a buried metallic service. When this happens the service can often be detected by using the locator in Radio mode. Limitations of Radio Mode ● Not all services will be detectable in Radio mode. ● A strong Radio signal present on one service may be masking a weaker Radio signal present on an adjacent service.
Locator Operating Modes: Generator Mode In Generator mode the locator detects conductors radiating a signal applied by the Signal Generator. The Signal Generator provides a way of sending a known signal along buried metallic services which can then be detected using the locator. Direct Connection By detecting this signal it is possible to locate, trace and identify the pipes or cables that may be carrying it.
Using the Locator: Batteries Locator Battery Check Switch the locator on by pulling up on the On/Off trigger positioned on the underside of the handle. The locator should emit a clear audible battery check tone for one second and the display should come on. Battery levels Check the battery level indicator in the bottom left hand corner of the display. If there is only one segment or no segments of the indicator filled in then the batteries will need to be renewed before locating work can begin.
Using the Locator: Holding the Locator When in use the locator should always be held upright. NEVER swing the locator such that it moves away from the vertical. Your middle or little finger should be used to squeeze, and hold on, the On/Off trigger. Your index finger will then be free to adjust the sensitivity control.
Using the Locator: Searching There are three stages to the locating process; searching, pinpointing and tracing 1. Turn the function switch to the appropriate mode 2. Hold in the On/Off trigger. The locator should emit the audible battery test tone and the digital display should come on. Check the battery level indicator to confirm the batteries are usable. 3. Rotate the Sensitivity control clockwise to its maximum setting as indicated by the arrow on the control. 4.
Using the Locator: Pinpointing Having found the presence of a signal the next stop is to pinpoint the source. The closer the locator is to the signal source the stronger the response. To Pinpoint a Signal 1. Keeping the locator vertical, walk through the area of the signal response. If the visual response goes off the scale then stop, reduce the sensitivity of the locator slightly before continuing. 2. The width of the signal response will begin to shrink as the sensitivity is reduced.
Using the Locator: Tracing Having pinpointed a service it should now be possible to trace it’s route. 1. Carefully follow the direction of the signal holding the locator at right angles to the line of the signal. It is necessary to constantly ‘slice’ the locator from side to side in order to be sure of still being over the peak signal response. 2. Stop and mark the position of the signal at regular intervals. As more marks are recorded the precise direction of the service will become more apparent.
