User Manual

resistance. If there is too much resistance or no circuit path, no current will flow and no
locate will be possible. So keep in mind that when a signal is heard, it is because the
signal has a complete path that is creating an electrically friendly way for the signal to
travel back to the transmitter. The signal doesn't just randomly wander through the dirt.
It follows a path provided for it, whether it is a pipe, wire, reinforcing bar. etc.
It is also important to note that in the tracing circuits, a return path needs to be present.
Basically, the return path completes the circuit. In most cases, this will be the earth
ground as the signal transmits down the cable and returns to the ground stake.
However, any return is possible, so a common wire could work. Or if you have a looped
wire, like a dog fence, the loop itself returns to the start and therefore provides a 'ground'
instead of the ground stake. You don't have to use a ground stake but you do have to
give the signal a way to return to the transmitter.
Battery Installation
- The Pro700 transmitter requires 8 “D” cell batteries. The Pro700
receiver requires one 9v battery. To install the batteries in the Pro700 transmitter, open
the case and remove the 2 holding screws on the battery compartment located on the
right side of the unit. Place the batteries in the holder, orienting them in accordance with
positive and negative poles. Turn on the Pro700T and push the red battery test button.
A good reading of 8 or higher on the analog meter while depressing the battery test
button indicates a successful battery install. If no response is seen, try adjusting the
batteries to insure good connection. If still no response, be sure the batteries are good
and fresh.
The Pro700 receiver battery compartment is located on the underside of the Pro700R
unit. Remove the 2 screws and the battery compartment cover. Install the 9 volt battery
and replace the cover and screws. Turn the unit on and depress the battery test button
located on the backside or the Pro700R receiver. The analog needle should peg to the
right. If not, try a new battery.
WARNING – Do not touch the red and black clips that connect the transmitter to
the cable when the power is on. There is danger of injury or death should this
occur.
Operation
– Disconnect the wire you wish to trace and the common wire from the clock.
With the transmitter off, connect the red alligator lead to the wire you want to trace
(common or station) and the black alligator lead to the included ground stake. Insert the
ground stake into the soil or earth ground perpendicular to the path of the wire and as far
from the transmitter as possible. Do not connect to the clock as signal may cause
damage if the clock is not voltage protected. Do not use common grounds such as
pipes or electrical grounds unless you have no choice. An independent ground stake
usually works better than a common ground.
Turn the Pro700 transmitter on. Adjust the power output knob and increase the power
until a reading between 4 and 8 is achieved. If you cannot achieve a reading of 4,
turn the unit off and retry your grounding operation above. A good ground is crucial
for optimum operation. Soil conditions can also affect this and you may wish to moisten
the grounding area. Also, re-check batteries for proper connection and operation.
Do not overpower the unit by turning it up past 10 on the meter. You won't hurt the unit
but you will waste battery power for no additional performance.