Planning the cable path
OmniTrax Product Guide Page 31
Site analysis checklist
Planning the cable path
Installation mediums
The OmniTrax sensor cables can be installed in most natural soil environments and man-made
surfaces. The OmniTrax nominal working limits are defined by soil conductivity at the cable
location being within the range of 10 mS/m to 200 mS/m. For optimum system performance it is
best to install a cable set in a single burial medium. However, a cable set can be installed in more
than one type of soil media providing the variance in signal strength does not exceed 20 dB over
the length of the cable.
The size and strength of the detection field varies in different installation mediums. In general, the
detection field is stronger and wider in light sandy soils, crushed stone, concrete and asphalt. The
detection field is more compact in heavy soils like rich black earth or clay. As a result, in some
instances the sensor cable is buried deeper in light soils, and shallower in heavy soils. Heavy soils
typically provide the most uniform installed system performance.
Description
Obtain a site plan
CAD drawings, photographs, video recording
precise, detailed measurements
description of local weather conditions
indicate proposed cable path on site drawing
Indicate all installation mediums
locations where installation mediums change
soil type (include general description of the soil, e.g., sandy soil, dry granular,
loam, clay, heavy clay, etc.)
concrete or asphalt (thickness, reinforced)
crushed stone or rock (approximate stone size)
landfill (buried metal objects)
grade changes (slopes greater than 30º require levelling)
locate all obstacles on site survey
fences (type and condition)
sidewalks, paths, roads, driveways
buildings, gateways and other structures
moving objects
water, ditches, depressions (where puddles can form)
utilities (sewers, pipes, conduits and electrical cables, etc.)
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