15
Automatic and Manual Output Power
The Rex Lite transmitter delivers power to the "load" to which it is connected. In the conductive
mode, the load is the circuit formed by the cable or pipe underground, the soil return path, and
the ground stake. In the inductive clamp and inductive modes, the loads are the clamp and the
antenna, respectively. The inductive clamp and inductive modes require the maximum power
that the transmitter can deliver. Therefore, the transmitter automatically operates at maximum
power output, and there is no need for manual power adjustment.
In the conductive mode, the power delivered to the load is highly dependent on the external
elements (soil, type of conductor, stake placement, etc.). In some cases, you need more
power to achieve more distance or depth; in other cases, you need less power to avoid
bleeding to nearby conductors. Therefore, while in the conductive mode, you have the ability
to adjust the output power manually, using the front panel controls and visual indicators
described further down in this manual.
Transmitter Current Measurement
When operating in the conductive mode, the Rex Lite transmitter displays the amount of current
flowing out of the transmitter and into the underground utility. This is very useful in determining if
you have established a good circuit. You can improve the circuit by relocating the ground stake
or enhancing the metal-to-metal contact of the conductive clips. A low current reading indicates
a poor trace conductor, poor soil conductivity, or poor ground stake contact/placement. Higher
current readings indicate a better circuit and a better chance at tracing long distances and
deep conductors.
If the current reading is low, try to improve the circuit as suggested above, to see if the current
increases. You can also check the cables and clips, wet the ground, a n d clean rust or dirt
from the places where you are making contact, to improve the connection. Often, the reason for
the low current is the soil itself (sandy or very dry) and/or the conductive quality and integrity
of the pipe or cable underground (cast iron pipes, rusted or broken wires, heavy insulation
to ground, etc.). If you cannot improve the circuit, there may be a small amount of current still
circulating in the circuit. Try increasing the output power manually and/or increase the gain on
the receiver.
Содержание Rex Lite
Страница 1: ...Rex Lite Pipe and Cable Locator User guide ...
Страница 4: ...1 INTRODUCTION OPERATING MODES ...
Страница 8: ...2 REX LITE RECEIVER ...
Страница 17: ...3 REX LITE TRANSMITTER ...
Страница 25: ...4 TECHNICAL SUPPORT SERVICE INFORMATION ...
Страница 27: ...5 WARRANTY ...