Operation, A. transmitter connection, B. locating & tracking buried wires – NOYAFA NF-816 User Manual
A. Transmitter Connection
To locate non-energized cable, Push transmitter switch to“Cable Scan”.
There are two options for connection. You can connect one lead of the
transmitter to the cable and the other lead to grounded earth or you can
connect one conductor with grounded earth of a non-shielded drop wire.
You can also connect two conductors to non-shielded drop wire.
B. Locating & Tracking Buried Wires
To locate buried electrical wires, CATV coax, telephone drops, irrigation
control wires or metallic pipes, Push transmitter switch to“Cable Scan”
attach one alligator clip lead of the 816T to an independent grounded
earth with a grounding stake or screwdriver. Do not connect to common
ground such as a metal water pipe or the pedestal ground as they can
cause cancellation of the reflected signal or produce false locating
signals. Theother lead is attached to the cable or metallic pipe in the
1. Non-energized Electrical Wires: Attach alligator clip lead to wires.
2. CATV Coax: Attach lead to the shield. This aviods signal disruption.
3. Telephone Drops: Attach controller lead to sheath. This aviods signal
4. Irrigation Controller Wires: Attach lead to common wire or station wire.
5. Gas Pipes with Pilot Wire: Attach lead to pilot wire.
6. Metallic Pipes: Attach lead to pipe.
Once the transmitter is attached to the cable, turn thumb wheel switch to
high tone. swing the receiver antenna close to the ground and approxim
-ately ten to fifteen feet away from the transmitter location. The tone will
be heard on either side of the path with a null (absence of tone) directly
over the path. Proceed along the path following the“null”. direction adjust
the transmitter and receiver controls to achieve further distances.
Your excellent helper in cable test!