78-8130-6151-8 Rev G
37
9.
To verify the fault location, insert the 3M™ Earth Contact Frame’s red-and-white-
striped probe directly on the spot identified above. Pivot the Earth Contact Frame
in a circle around the red-and-white-striped leg re-inserting the green-banded leg
in the ground every few degrees of the circle (See illustration below.). The arrow
should always point toward the left (red) indicating that the fault is directly below
the red-and-white-striped leg.
10.
After a fault is located and pinpointed, move the Earth Contact Frame about one
Earth Contact Frame width away from the fault and insert it in the ground with the
green-banded leg towards the fault. Compare the numeric signal level with the fault
level reference signal indicated in the lower left box labeled
Ref
. If the reading is
within 12 dB of the reference signal, the operator has found the major fault. If the
fault reading does not fall within 12 db of the reference signal reading, multiple
faults may exist. The signal level of this secondary fault can be saved by pressing
Fault 1
[SK] or
Fault 2
[SK]. The fault with the highest reading will be the primary
fault.
Note: For additional information about locating buried sheath faults and earth return
faults, please see the 3M™ publication
Cable and Pipe Locating Techniques
at
www.3M.com/dynatel.
13. Locating 3M™ Electronic Markers and
3M™ iD Markers
(3M™ Dynatel™ Models 2273ME-iD, 2250ME-iD and 1420E only.)
E-Model Initial Configuration
Attention: All E-Model (Export) iD Locators must run the Initial Configuration setup
found in the 3M
™
Dynatel
™
Locator PC Tools software. The 3M™ Dynatel™ PC
Tools software is available free of charge at www.3M.com/dynatel under the Software
Updates section by clicking the Dynatel(TM) M-Series Locator PC Tools link.
A. Activating the 3M Marker Locate Feature
In order to enable the electronic marker location feature of this receiver, you must
identify the country in which the locator will be used. This initial configuration is
required for the 2273ME-iD, 2250ME-iD, and 1420E locator receiver models.
Some countries do not allow all marker operating frequencies. Therefore, the E-model
locators are shipped with all the marker types/frequencies disabled.