CS475, CS476, and CS477 Radar Water
Level Sensor
1. Overview
The CS475, CS476, and CS477 are radar ranging sensors typically used for
water-level applications. They emit short microwave pulses and then measure
the elapsed time between the emission and return of the pulses. The elapsed
time measurement is used to calculate the distance between the sensor face and
the target (e.g., water, grain, slurry). The distance value can then be used to
determine depth.
These radar sensors output a digital SDI-12 signal to indicate distance and
stage. This output is acceptable for recording devices with SDI-12 capability
including Campbell Scientific dataloggers. Compatible dataloggers include
our CR200(X)-series, CR800-series, CR1000, CR3000, CR5000, CR510, and
CR10X.
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.
The -L after the model name indicates that the cable length is user specified.
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Summary of Contents for C477
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