User manual

User Manual
3
Table 4-2. Radiation Beam Spread for CS475
(10° Beam Angle)
Distance in Metres Diameter of Footprint in Metres
1 0.18
5 0.87
10 1.76
15 2.64
20 3.53
Table 4-3. Radiation Beam Spread for CS476/CS477
(8° Beam Angle)
Distance in Metres Diameter of Footprint in Metres
1 0.14
5 0.70
10 1.41
15 2.11
20 2.81
30 4.216
70 (CS477 only) 9.84
3. Securely mount the sensor.
4. Use a user-supplied bubble level or the #25619 bubble level to make certain the
antenna horn is aligned within 1° of vertical. The cap needs to be removed
when using the #25619. If the antenna is not vertical, a trigonometric
measurement error can occur with respect to the water. The maximum range is
reduced because of the off-axis return signal.
5. Orient the sensor such that one of its polarization markings is aligned towards
the wall or pier (see Figure 4-1 and Table 4-4).