CS475A-L

Name: CS475A-L
Brand: Campbell Scientific
SKU: 32873
Availability: Discontinued

Radar Water-Level Sensor

CS475A-L

Retired

Radar Water-Level Sensor

No longer available to order

This product is retained for service, documentation, and compatibility information.

Replaced by

RangeVue 15
SDI-12, Radar Water-Level Sensor
RangeVue 30
SDI-12, Radar Water-Level Sensor

Model:: CS475A-L
Item Number:: 32873
Warranty:: 2 years

Overview

The CS475A radar sensor monitors the water level of rivers, lakes, tidal seas, and reservoirs. The sensor is ideal for areas where submersed sensors can be damaged due to corrosion, contamination, flood-related debris, lightning, or vandalism. It emits short microwave pulses and then measures the elapsed time between the emission and return of the pulses. The elapsed time measurement is used to calculate the distance between the sensor and the target (for example, water, grain, slurry). The distance value can then be used to determine depth of the medium.

The CS475A outputs a digital SDI-12 signal to indicate distance and stage. This output is acceptable for recording devices with SDI-12 capability, including Campbell Scientific data loggers.

Key Advantages

Non-Contact Water Level Monitoring
FCC approved for outdoor use

Technical Description

Features of the SDI-12 version 1.4 functionality:

M! commands return stage, distance, voltage, and error codes
SHEF coded meta data

Benefits

Meets USGS Office of Surface Water (OSW) requirements for accuracy
SDI-12 version 1.4 functionality
Makes 1 Hz measurements
Monitors tides for NOAA physical oceanographic real-time systems (PORTS)
Easy to set up and configure over USB or SDI-12
FCC compliant (FCC IC# MOIPULS 616263); individual FCC license not required
Low maintenance—no moving parts significantly reduces maintenance cost and time
Low power mode available
Rugged enough for harsh environments—IP68 rating
Optional display available

Specifications

Measurement Description: Distance
Output Options: SDI-12
Measurement Range: 0.5 to 35 m
(1.6 to 114.8 ft)
Accuracy: ±2 mm
(±0.0065 ft)
Resolution: 1 mm
(0.0033 ft)
Communications Output: SDI-12 version 1.4
Radar Frequency: K band
(~26 GHz)
Pulse Energy: 1 mW
(maximum)
Beam Angle: 10°
Input Voltage: 9.6 to 32 Vdc
Surge Protection: 1.5 KVA
Operating Temperature Range: -40° to +80°C
Vibration Resistance: Mechanical vibrations with 4 g and 5 to 100 Hz
Mechanical Rating: IP66/68
Housing Material: Aluminum
Horn Material: PVDF plastic
Measurement Time: < 1.0 s
(normal power mode)
60.0 s + (5 • Integration Time) + (Measurement Time)
(low power mode)
Housing Height: 129 mm
(5.1 in.)
Horn Diameter: 115 mm
(4.5 in.)
Horn Height: 122 mm
(4.8 in.)
Weight: 2 kg
(4 lb)