Subsite 910R - Locate Line: Passive Location

910R/950R/950T/970T - OPERATION 57
LOCATE LINE: PASSIVE LOCATION
910R/950R/950T/970T - OPERATION 57
LOCATE LINE: PASSIVE LOCATION
LOCATE LINE: PASSIVE LOCATION
Setup
To set up for passive location, turn on receiver and choose the
best frequency and antenna configuration for your job. See
“Choose Frequency” and “Choose Antenna Configuration” earlier
in this chapter.
Always check receiver battery level at startup.
NOTICE: Lines with no A/C current flowing through them are hard
to detect and dangerous because they still have voltage. To locate,
turn on an appliance to cause current flow, and use active and radio
search methods.
Technique
Survey the Site
Make a visual check of the site for signs of buried lines such as:
• recent trenching
• buried line markers
• overhead lines that run down pole and underground
• gas meters
• valve sights
• drains or manhole covers
LOCATE LINE: PASSIVE LOCATION
Setup
To set up for passive location, turn on receiver and choose the
best frequency and antenna configuration for your job. See
“Choose Frequency” and “Choose Antenna Configuration” earlier
in this chapter.
Always check receiver battery level at startup.
NOTICE: Lines with no A/C current flowing through them are hard
to detect and dangerous because they still have voltage. To locate,
turn on an appliance to cause current flow, and use active and radio
search methods.
Technique
Survey the Site
Make a visual check of the site for signs of buried lines such as:
• recent trenching
• buried line markers
• overhead lines that run down pole and underground
• gas meters
• valve sights
• drains or manhole covers