ADS Environmental Services Model 4000 530017 A0 - Manual (Page 46)

Monitor and Sensor Installation 3-23
Mounting the Ultrasonic Depth Sensor
Two special installation methods are available for mounting the
ultrasonic depth sensor:
Standard Ultrasonic Mount This mount, the most
common mounting method in use today, is used for mounting
the ultrasonic depth sensor in the pipe during special
installations.
Surcharge Mount This mount primarily is used for
mounting the ultrasonic depth sensor in the manhole at sites
where the flow continually occurs within 2 inches of the top of
the pipe or sites where a pressure sensor is not available and
surcharges frequently occur. Surcharges are conditions where
the flow completely fills the pipe and extends up into the
manhole.
Standard Ultrasonic Mount
Mount the ultrasonic depth sensor using this method in the
following way:
1. Position the sliding ultrasonic plate in the center apex of the
pipe, and scribe a mark on both sides of the ultrasonic plate.
2. Center the 12-inch (30-cm) mounting band, allowing the band
to extend about 4 inches (100 mm) beyond each side of the
scribed location.
3. Conform one end of the curved band to the pipe configuration,
and spot drill to mark the bolt location.
4. Remove the curved band, drill an anchor bolt hole, and gently
tap a ¼-inch anchor bolt into the hole.
5. Mount the curved band to the anchor bolt through the pre-
drilled hole on the band, and hand-tighten a 7/16-inch (11-mm)
nut with washer to the anchor bolt to secure the band.