ADS Environmental Services Model 4000 530017 A0 - Manual (Page 43)

3-20 ADS Model 4000 Manual
Tap the sensor mount to the right or left with a rubber
mallet until it is level.
Warning: Tapping the sensor mount with the sensor
attached could damage the sensor. Always remove the
sensor before tapping the mount with a mallet.
Remount the sensor onto the mount, and recheck the level.
6. Fully tighten the ring until it fits securely and completely flush
against the pipe wall.
Warning: Avoid overtightening 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. Secure the sensor cables from the ring to the future monitor
location in the manhole. Refer to Securing the Cables in the
Pipe and Manhole on 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.