ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 110)

Sensor Installation and Connection 3-51
Surcharge mount
1. Determine the appropriate height at which to mount the
Ultrasonic Depth Sensor portion of the surcharge bracket (p/n
I40-0010). The sensor slides into the groves of the mounting
plate at the lower portion of the bracket. When making this
determination, keep in mind that the maximum range of the
sensor is 3.048 meters (10 ft).
2. Press the bracket firmly against the manhole wall.
3. Identify the three pre-drilled holes at the top of the bracket, and
spot drill the manhole wall through the middle hole with a
drill.
4. Remove the bracket, and drill and mount an M6 x 55-mm
anchor bolt.
5. Secure the top of the bracket to the manhole wall with a
washer and nut.
6. Push up on the bottom portion of the bracket until the sensor
portion of the bracket is level.