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no choice. An independent ground stake usually works better than a
common ground.
Select Direct Clip-on, which turns on the transmitter output at the lead
jacks. In LO-F, adjust the power output selector arrows to increase the
power to a visible level on the bar graph (Not Applicable to HI-F). As a
rule, it is best to start tracing with a low-level signal indicated by an "OK"
near the power output bar. If you can't achieve the minimum "OK"
indication, turn the unit off and retry your grounding operation
above. Good ground is crucial for optimum operation. Soil conditions can
affect this, and you may wish to moisten the grounding area. You can
increase the output power with the adjustment arrows in order to increase
the range and depth of the trace, but this will reduce battery life in
proportion. In HI-F mode, select the power level 1-4 that gives you the
best response.
Electing 'DIRECT HI-F' or 'DIRECT LO_F' operation: When in the Direct
Clip-on mode, it is also possible to choose between two signal frequencies
best suited to Long-and-Deep (LO-F) tracing or Short-and-Shallow (HI-F)
tracing. You may need to experiment with the use of these two methods
to get the best results for your application.
WARNING – Do not touch the metal red or black alligator clips on the
transmitter cords when the power is on. There is danger of injury or
death should this occur.
BROADCAST OR CLAMP: When using one of the two connectionless
modes, select "Broadcast or Clamp" from the Home screen. This turns on
transmitter power to the Broadcast antenna in the bottom of the case. The
case then can be positioned over a wire or metal pipe to induce a tracing
signal in it. If the Inductive Clamp is plugged in to the front panel in this
mode it becomes the active antenna and can be used to induce tracing
signals on many wires and pipes by clamping the jaws around the target.
Pro900™ LOCATOR USER GUIDE
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