User manual

User Manual
9
Three sensor models are available that differ in their measurement range and
accuracy. The CS475 can measure distances up to 65 feet with an accuracy of ±0.2
inches; the CS476 can measure up to 98 feet with an accuracy of ±0.1 inches; and
the CS477 can measure up to 230 feet with an accuracy of ±0.6 inches.
Figure 5-1. CS475, CS476, and CS477
5.1 Components and Hardware
The radar sensor consists of an integrated microwave transmitter and sensor
together with a horn antenna (see Figure 5-2 and Table 5-1). The horn antenna
serves to focus the transmitted signal and to receive the reflected echo. A built-in
SDI-12 interface provides data processing and SDI-12 communications with the
datalogger.