15
TW-82P RECEIVER
PASSIVE POWER MODE continued
Operating Controls
Press to enter Passive Power Mode
The display will appear as
illustrated to the right.
Press to increase gain.
Press to decrease gain.
Press again to exit Passive Power Mode.
Locating Procedure
1. Enter Passive Power mode.
2. Set gain at maximum, 100%.
3. If necessary, reduce the gain so that the Receiver is silent when
not over a detectable power line.
4. Walk forward, swinging the Receiver from side to side.
5. When a line is located, the Receiver will emit a raspy/buzzing
sound.
Note: Audible-search only. No visual indicators.
Passive Power detection relies only on audio feedback to locate
the utility. No indicators will appear on the LCD display.
Azimuth, depth and left/right guidance will not be provided.
6. When an audible signal indicates the detection of a utility:
a. Move left and right, sweeping beyond the range of the signal
each time as you sweep the Receiver.
b. Determine the approximate center of the signal, midway
between the right-most and left-most edges of the audible
signal.
c. Lower the gain as you sweep left and right of the approximate
center. This will narrow the search.
d. Continue to lower the gain to the minimum possible while still
detecting the buried utility with an audible alert.
7. With the utility pinpointed at one spot, move both forward and
backward to verify the direction of the utility.
8. If possible, follow the signal to a known access point, or origin, to
find a connection point visible above ground.
9. If appropriate, use inductive or conductive modes to locate the
utility and verify the location of the utility.
