Owner's manual

15ENGLISH
7 PUSH CABLE AND LINE LOCATING
7.1 Passive versus active locating
Active Passive
Defi nition Active locating is generally used to trace and
pinpoint a specifi c buried line
Active locating always requires a sonde or
transmitter.
Used to mark the location of unidentifi ed
buried lines to avoid them.
Do not use to identify or trace specifi c lines.
Modes Sonde
Line trace 33kHz & 83kHz
Power: 50/60Hz
Radio: 15 kHz – 27 kHz
Source PIPELINE INSPECTION REELS
WIRELESS MONITOR
PIPELINE INSPECTION APP
Sondes
Power* - transmission & distribution networks
Radio* - high power, low frequency (LF)
communication transmitting towers.
When to use Use to trace, identify & pinpoint a buried line.
When a depth measurement is required.
Search for unknown buried lines when
applying a transmitter signal is not practical.
For small, localized digging (planting a
fencepost or road sign).
A last check before digging.
* Buried pipes and cables act as antennas that re-radiate the signal.
Radio signals travel further distances if both ends of the utility are grounded.
Always call before you dig and follow local, state, or national regulations and
your company's safety and work practices.
7.2 Grounding Post
The grounding post must be used while using the LINE TRACE feature to trace push cable. The CONTROL HUB
must be grounded to close the current loop to send out a good locate signal. Use the supplied grounding cable
assembly with ground stake to ground the CONTROL HUB to earth.