ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 86)

Sensor Installation and Connection 3-27
The bottom sensor may be rotated off the bottom
centerline up to 15 degrees up either side of the pipe
(between the 5:30 and 6:30 positions). However, rotating
the ring and sensor requires accurately measuring the
physical offset.
Rotating the Peak Combo Sensor or Slimline Peak Combo Sensor no more
than 15 degrees up either side of the pipe (between 5:30 and 6:30 positions)
 If necessary, temporarily clear away silt to install the ring.
Restore the silt after fully securing the ring (step 7).
 Make sure the ring is flat (flush) against the inside surface
of the pipe to avoid obstructing the flow or catching
debris.
 Verify that the Peak Combo Sensor/Slimline Peak Combo
Sensor is flush with the pipe surface. Any elevation of the
sensor or significant deterioration or imperfection in the
pipe surface around the sensor can create an open space in
which debris can become trapped. An elevated sensor also
can misdirect the signal when taking measurements.
These vulnerabilities can quickly result in potential
damage or disruption to the sensor and/or erroneous data.