™
Page 32 of 59
4 vLoc3-ML Receiver
4.3.1.2
Dual Configuration
In this configuration, the unit can trace an energized cable or pipe while simultaneously looking for markers. For example, if a
cable has markers indicating splices or T joints’ position, the cable can be traced; when a marker is approached, the unit will
respond, indicating its position.
Enter the dual configuration, as previously described. The following icons should be displayed in the top left screen
. The
locator screens will look similar to the illustrations below.
1
35.6
25dB
8.19kHz
2
3
4
6
8
9
7
5
10
11
The Dual Mode Screen
1
The numeric value of line signal strength from the
energized line
2
Line locate frequency selected
3
Peak level indicator
4
Line left / right indicator
5
Marker type, graphic
6
Marker signal strength
7
Compass line direction indicator
8
Bar graph signal level from Line
9
Line locate gain setting
10
Line icon indicating line locate is active
11
Marker icon indicating marker detection active
Select the marker type to be detected. When in the Dual Configuration selecting the marker type is done through the user menu.
Press and hold the
button and use the "+," "-" keys to scroll to the marker type option. Press the enter key to access the
available marker types. Scroll as before to the desired marker, and press the return button to select.
Menu
Speaker volume
Sonde Configuration
Backlight
Frequency
Locate Perspective
Marker Type
Language
Medium
English
Power (169.8kHz)
Water (145.7kHz)
Sanitary (121.6kHz)
Telephone (101.4kHz)
Gas (83kHz)
CATV (77kHz)
Non-Potable Water (66.35kHz)
Note that both icons
are now illuminated, indicating that dual configuration is activated. Energize the cable with an active
signal as instructed in this manual.
Select the antenna configuration by using the
pushbutton. Note that the left/right arrows indicate the cable position and
not
the marker position.
Use the
pushbutton to match the transmitter frequency (Some active frequencies may not be available in the dual-mode
as they may affect the marker locate function.) Use the locator to identify the position of the cable or pipe. Trace the line using
the same technique as a standard vLoc3 series locator. The bar graph indicates the signal strength from the cable. The bar
graph is always colored blue in the Dual configuration mode and does
not
indicate signal distortion or marker type.
In the Dual configuration mode, the "+" and "-" pushbuttons alter the bar graph's sensitivity. It is not necessary to alter the
sensitivity to the marker locate function. The sound is from the line position. In Dual configuration, the marker has no sound
associated with it.
As a marker is approached, the marker locate icon will start to fill up. Move the locator forward and back, left and right, to obtain
the largest signal. If pinpointing is required, select the dedicated configuration and use the bar graph to pinpoint the exact
position.