The CXL4, DXL4 and MXL4 Locators feature an AlarmZone™ which is a form
of automated depth measurement intended to alert the user to the presence
of unusually shallow pipes or cables.
The AlarmZone™ warning will be triggered if the Locator measures a Power,
Generator/Transmitter or
All
Scan signal as being less than 0.3m (12”) away.
The Locator will give an audible alert and the AlarmZone™ warning symbol
will flash on the display of the Locator.
The AlarmZone™ depth setting is shown each time the Locator is switched on.
The AlarmZone™ is factory set to be triggered at 0.3 m (12”).
This distance can be altered using the PC Toolkit.
The AlarmZone™ feature can be temporarily disabled by switching between the Generator/
Transmitter mode and
All
Scan mode three times in quick succession. If you have disabled
the AlarmZone™ feature, each time the Locator is switched on the display will read ‘OFF’.
AlarmZone™ will remain disabled for 30 minutes at which point it will be automatically reactivated.
NOTE
The Locator is measuring the distance from the base of the Locator
to the source of the signal (the metal pipe or cable). If the Locator is held
a significant distance above the ground surface then it may not trigger
an AlarmZone™ warning because the Locator is now too far away
from that shallow service.
17
Using the Locator:
AlarmZone™
WARNING
There may be some pipes and cables that are not radiating a signal so the AlarmZone™ warning will not appear.
NEVER presume there are no shallow pipes or cables present simply because AlarmZone™ has not been triggered.
