Amprobe UAT-505 Manual De Usuario página 20

Direct Test Leads Connection Mode – Setting Up the Transmitter
1. Turn the Transmitter on by pressing the power button for two seconds.
2. Connect the green and gray test leads to the Transmitter inputs. The Transmitter will switch automatically to
Direct Connection Mode.
3. Insert the ground stake into the ground a few meters perpendicular to the line. Connect the green lead to the
ground stake with an alligator clip.
4. Connect the gray test lead to the target line. If connecting to the electrical cable, make sure the wires are
de-energized.
5. Press the Signal button to switch between Hi and Lo signal strength. Lo signal level uses less energy and helps
to preserve batteries. Increase the level if the resulting signal strength is poor. Increasing the signal unnecessarily
may result in the signal "bleeding off" onto other services and creating misleading "ghost" signals. It will also
drain more power from the battery.
Note: When connected, the Transmitter will emit a beep tone. The better the connection to the line and ground, the
lower the tone will be. Check for a good connection by disconnecting and then reconnecting the gray lead.
Things that can affect the quality of connection are a rusty pipe connection point (clean the connection area with a
wire brush) or poor grounding. To improve the connection quality due to poor grounding, try inserting the stake into
damp ground. If necessary, dampen the surrounding ground with water. If grounding is still an issue, try connecting
test lead to a manhole cover surround. Avoid connecting to fence railings as these may create return signal currents
along the fencing that will interfere with the locating signal.
When connecting to large diameter pipes and cables, it is sometimes not possible to find a suitable projection
to apply the alligator clip. If the material is ferrous, use a magnet to make contact to the line and then attach the
alligator clip to a magnet. For example: making a connection to a street lighting circuit. Usually it is practice to
connect the sheath of a lighting cable to the metallic inspection cover of a street lamp. Making a connection to the
inspection plate will induce a signal to the cable via the plate and sheath. Normally, there is no projection on the
plate on which to clip so using a magnet on the plate provides a suitable clipping point.
Direct Test Leads Connection Mode – Locating with the Receiver
1. Turn the Receiver on by pressing the power button for two
seconds.
2. Match the frequency of the Transmitter by pressing the
" " button repeatedly. Select 33 kHz frequency.
Note: 8 kHz frequency is not used for connection with
UAT-500-T Transmitter. This frequency is provided to support
optional UAT-600-T Transmitter.
3. Follow the steps as described in the Receiver Locating section 3.1.
4. Use the Left/Right arrow indicators to quickly assess location of
the wire.
5. Optionally measure the depth of the wire. Refer to the Taking
Depth and Current Measurements section 4.3 for details.
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