NOYAFA NF-816 - Manual (Page 7)

Fig·05-Idetifying The Phase
A
B
C
A
B
C
A
B
C A
B
C
A
B
C
A
B
C
T
o
n
e
N
u
ll
T
o
n
e
Tone Tone
CAUTION: DO NOT TURN OFF BREAKER IF CONNECTED TO
EQUIPMENT THAT CANNOT BE INTERRUPTED.
To identify the phase feeding
the breaker in question,
scan all phases entering
the breaker box.
Tone will be heard along
the sides of the phase
carrying the signal with
a null directly over it.
(Fig.05
)
Fig·06-Pinpointing Drill Sites
Fade
Fade
Peak
NF-816
Your excellent helper in cable test! 5
F. Pinpointing Drill Sites
Set up the 816T as described in and attach to the nearest
receptacle. Locate and mark the path of any signal near your drill site.
If you have reason to believe that other installations are present near
your drill site, use procedures outlined in Section 2C, Locating and
Tracking Buried Wires.
The signal generated by the transmitter can be detected through walls
and ceilings.
To pinpoint the transmitter's
location (specific point),
wrap the alligator clip
leads around the
transmitter, short the
leads together, turn
transmitter on and
secure it to the
opposite side of the
wall or ceiling with
tape. Scan the wall
with the antenna flat
against the wall. The peak
signal will be heard when the
antenna passes directly over the transmitter location.(Fig.06)
Figure 01