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7 Route tracing
Tracing is always possible as active or passive. If a cable is live, the harmonics of the mains
frequency can be heard as ‘mains hum’. However, all grounded conductors, water pipes and
parallel running cables which are connected to the 50Hz mains system also have this ‘mains
hum’. To avoid confusion, it is recommendable to disconnect conductor and feed cable
inductively by using Audio frequency generator to do a active tracing.
At menu ROUTE TRACING following methods are selectable:
- Last (switch to last measurement with related settings)
- Route Tracing
- Depth
- Twist method
Also at route tracing the device is working with working- and config plane. At this planes
following settings are possible.
Working plane:
Volume Speaker:
Loudness of loudspeaker adjustable
Gain:
Sensitivity of search coil.
Filter Frequency:
- 50 / 60 Hz for passive tracing
- 815Hz, 2kHz and 10 kHz depends on sending frequency generator
- two additional frequencies adjustable at setup.