ADS Environmental Services Model 4000 530017 A0 - Manual (Page 49)

3-26 ADS Model 4000 Manual
Surcharge Mount
Use the following method to mount the ultrasonic depth sensor at a
site that may experience surcharge conditions:
1. Place the top of the ultrasonic depth sensor against the base of
the surcharge plate, aligning the holes of the plate with the
holes on top of the sensor.
2. Insert a 6-32 × 1-inch (25-mm) round-head machine screw
with a 6-32 washer through the ultrasonic plate and sensor, and
secure with a 6-32 washer and 5/16-inch (8-mm) nut.
3. Secure the three remaining locations.
Surcharge Mount
4. Determine the appropriate height at which to mount the
ultrasonic depth sensor portion of the bracket. In making this
determination, keep in mind that the maximum range of the
ultrasonic depth sensor is 10 feet (3.05 m).
5. Press the bracket firmly against the manhole wall.