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How it Works
The GFL3000T transmits a voltage charge in succession
approximately every 2 seconds. The charge is applied through the
leads and into the connected cable where they travel to the
ground fault. At the ground fault, some of the electrical current
leaks to earth ground. This amount is determined by the relative
resistance of the fault and subsequent path to the ground stake
versus the other available paths for the current.
The receiver/A-frame is then inserted into the ground along the
path of the wire. As the current flows down the wire, it travels out
through the ground fault and then back to the ground stake. Some
of this current, however, travels through the A-frame receiver. The
needle at the top of the A-Frame will give a directional kick either
left or right. The initial kick direction is the one that determines the
direction. Usually after this initial kick, the needle will rebound in
the opposite direction. Only the initial kick is important.
The receiver determines which side of the frame received the
current first and therefore, which direction the fault lies. By
relocating the frame, the user can zero in as to exactly where the
fault lies.
Batteries
The GFL3000 transmitter uses a 12v gel cell rechargeable battery
(included). There are also 110v AC and cigarette lighter
rechargers included for this battery. The battery comes
disconnected in shipping. To connect the battery, remove the
finger screws located on each side of the transmitter control panel.
Inside the compartment, you will see the battery and 2 connecting
terminals using spade clips. Carefully remove the rubberized
terminal covers and connect the spade clipped wires to the
battery. Replace the cover and tighten the screws.
To recharge the transmitter battery, connect the charger to the
charging receptacle on the transmitter and then plug into a wall
outlet. The battery level indicator on the transmitter face will
indicate the amount of charge in the battery.
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