Underground wire locator
NOYAFA Electronic specializing in testing instruments and cable testers for 15 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 15 years
The underground wire locator is designed to allow the user to track low voltage cables used for garden and landscape automatic watering systems, and also low voltage garden lighting systems.
lt can also be used to trace other metal cables.
The system uses a "transmitter"to send a signal down the cable being traced or to a sole noid valve that is being located.
A“receiver" is then used to pick up the signal and follow the cable or locate the coil.
A. Transmitter Connection
To locate a cable follow the following procedure:
1)Connect the transmitter to the cable you are looking for. lf the cable is connected to an irrigation controller，Disconnect the cable from its normal power source and clip the RED alligator clips from the transmitter onto the cable.
2)There are several options for connections of the black alligator.
-----2.1) to a blade of a screw driver pushed into the ground (preferably wet ground), you might require to connect via a short length of cable.
-----2.2) to the ground wire.
-----2.3) to Nothing, just let the black alligator clip dangle in the air.
3)Move the transmitter switch to the “Cable scan”position.
B.Tracking Buried lrrigation or Garden Lighting Cables
Once the transmitter is attached to the cable and the ground or common as in"B"above, ensure the transmitter switch is in the "Cable Scan" position and turn the “Thumb Wheel" switch to high tone. Locate approximately the route of the cables and swing the receiver antenna in a pendulum type action at right angles to the cable pathstarting at least 3 meters away from the transmitter.
As the receiver antenna swings past the underground cable, a tone willbe heard on either side of the cable path, when you are right over theburied wire,you'll get a gradual increase in the tone and hear theloudest sound.
You can adjust the transmitter and receiver controls to move furtherdistances according to your wire depth.
You can also use the ear phones to assist with the detection.
C. Detecting Cable Break
A cable break will be detected by the loss of signal in the receiver antenna.
D. Locating Alarm, Sound & Computer Wires
To locate other wires, it is best to disconnect the wire in question anddirectly attach only one transmitter lead to the subject wire,let the other lead hang. Trace the path as outlined in point 'C' (LocatingTracking Buried lrrigation Wires).
E.Measuring Depth
Once the path has been determined,mark the ground at a null point along the path.
Hold the Receiver antenna at a 45-degree angle to the ground and move at a right angle away from the path of the wire until another null is found.Mark this point. the distance between the two marks is the approximate depth of the wire. (fig.01)
F. Pinpointing Drill Sites
Setup the Transmitter as described in (Fig.01)
Locate and mark the path of any signal near your drill site. lf you have reason to believe that other installations are present near your drill site, use the procedures outlined in section 'C' (LocatingTracking Buried lrrigation Wires).
The signal generated by the Transmitter can be detected through wall sand ceilings,to pin point the transmitter's location (specific point), wrapthe alligator clip leads around the Transmitter,short the leads together,turn the transmitter on and secure it to the opposite side of the wall orceiling with tape. Scan the wall with the antenna flat against the wall.The PEAK signal will be heard when the antenna passes directly overthe transmitter location.(Fig.02)
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