ADS Environmental Services FlowAlert QR 775011 A2 - Manual (Page 72)

4-4 ADS FlowAlert Manual
 Dry sand
 Commercial asphalt cold patch compound (1 cup)
 Scotch-kote electrical sealing compound (ADS p/n
505171)
 Scotch 130C rubber stretch tape (ADS p/n I45-0001)
2. Determine the appropriate location in the road near the
manhole to install the antenna, considering the following:
 Locate the antenna in the road no closer than 18 inches and
no further than 30 inches from the manhole in which the
monitor is installed.
 Choose a location that is as flat as possible with stable base
material.
 If possible, select a location where the antenna would
experience minimal direct impact from road traffic.
 Make sure the location exists beyond the manhole’s iron
rim beneath the road surface. This will enable you to
access the manhole corbel when drilling the channel for the
antenna cable.
3. Mark the location for the antenna installation, and then mark
the location to drill the corbel hole 2.5 to 3 inches back from
the edge of the antenna hole.
4. Drill a hole from the marked corbel hole location in the road,
through the corbel, and into the manhole using the ½-inch by
36-inch hammer drill bit. This will serve as the channel for the
antenna cable running from the antenna to the monitor in the
manhole. Be careful to avoid any cables in the manhole, and
restart hole slightly to the right or left if mesh is encountered or
resistance occurs.
5. Cut a 6-inch long by 1.25-inch wide by 0.75-inch deep hole in
the road using the non-rotating demolition hammer (in the
hammer only mode) with the chisel/grinder. This will serve as
the installation location for the antenna. The corbel hole should
travel under the center of this hole.