ADS Environmental Services FlowShark QR 775002 A4 - Manual (Page 59)

Sensor Installation and Connection 3-25
Warning: Avoid over-tightening the ring. This could
bend the crank assembly.
7. Restore any silt moved to its previous level, and confirm that
the Doppler velocity sensor is still above the silt level.
8. Measure the physical offsets for the ultrasonic and pressure
depth sensors.
 Ultrasonic Offset Measure the distance from the crown
(top) of the pipe to the face of the ultrasonic depth sensor.
 Pressure Offset Measure the vertical distance from the
bottom of the pressure depth sensor to the bottom, center
of the pipe.
Note: These values will be required when configuring the
monitor using the Profile software.
9. Secure the sensor cables from the ring to the future monitor
location in the manhole. Refer to Securing the Sensor Cables in
the Pipe and Manhole page 3-43 for more information.
Special Installations
A special installation requires two independent installations: one for
the ultrasonic depth sensor and one for the Doppler velocity and
pressure depth sensors.
Note: Special installations do not involve spreader
mechanisms or rings. All hardware mounts directly to the
pipe surface with anchor bolts.