Contents

Revision and Copyright Information
Limited Warranty
Assistance
Safety
Table of Contents
1. Introduction
2. Precautions
3. Initial Inspection
4. QuickStart
5. Overview
- 5.1 Components and Hardware
6. Specifications
- 6.1 Radar Unit
- 6.2 Environmental
- 6.3 Physical
7. Installation
- 7.1 Site Selection
- 7.2 Mount and Align the Sensor
- 7.3 Wiring to Datalogger
  - 7.3.1 Built-in Self Test (BIST)
- 7.4 Datalogger Programming
  - 7.4.1 SDI12Recorder() Instruction
8. Operation
- 8.1 Default Settings
- 8.2 Sensor Measurement
9. Diagnostics, Repair, and Maintenance
- 9.1 Testing Procedure
- 9.2 Cyclic Redundancy Check
- 9.3 Diagnostics and Repair
  - 9.3.1 No Measured Value Available Error E013
  - 9.3.2 No Measured Value Available Error E041, E042, E043
    - 9.3.2.1 Exchange Electronics Module
- 9.4 Maintenance
Appendix A. Importing Short Cut Code Into CRBasic Editor
Appendix B. Example Program
Appendix C. SDI-12 Commands/ Changing Settings
- C.1 SDI-12 Command Descriptions
  - C.1.1 Query/Set the Address
  - C.1.2 Set Water Stage
  - C.1.3 Start False Echo Learn
  - C.1.4 Set Units
  - C.1.5 Set Water Conditions
  - C.1.6 Set Power Operation Mode
  - C.1.7 Acknowledge Active Command
  - C.1.9 Send Identification Command
  - C.1.10 Start Verification Command
- C.2 Using Terminal Emulator and a Datalogger to Send Commands
  - C.2.1 SDI-12 Transparent Mode
  - C.2.2 CR200(X) Series Datalogger Example
  - C.2.3 CR1000 Datalogger Example
Appendix D. FCC/IC Equipment Authorization (USA/Canada only)
Campbell Scientific Companies

Campbell Scientific CS475 Instruction Manual

Campbell Scientific CS475 Sensor manual cover

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Campbell Scientific CS475 Sensor Specification

The Campbell Scientific CS475 Sensor is a precision radar-based instrument designed for accurate water level measurement in a variety of environmental conditions. Operating within a frequency range of 26 GHz, the CS475 utilizes a non-contacting radar technique to deliver precise measurements, making it ideal for applications where direct contact with the water is not feasible. The sensor operates within a measurement range of up to 70 meters and maintains a high level of accuracy, typically within ±2 mm, ensuring reliable data for hydrological studies and water resource management.

The CS475 is engineered to perform optimally in challenging environments, featuring a rugged and weather-resistant design that withstands harsh conditions including extreme temperatures, precipitation, and debris. It is equipped with advanced signal processing capabilities to minimize interference from environmental factors such as wind or surface turbulence, thereby enhancing measurement reliability.

This sensor supports a variety of communication protocols, including SDI-12, RS-232, and RS-485, facilitating seamless integration with data loggers and telemetry systems. It also features low power consumption, making it suitable for remote installations where power availability is a concern. The CS475's setup and configuration are straightforward, thanks to intuitive software that enables users to calibrate and adjust sensor parameters with ease.

In addition to its robust performance and versatile communication options, the CS475 is backed by Campbell Scientific’s reputation for quality and technical support, providing users with confidence in long-term deployment. Its design, combining precision, durability, and ease of integration, makes the CS475 an excellent choice for professionals seeking reliable water level monitoring solutions.

Campbell Scientific CS475 Sensor F.A.Q.

How do I properly install the CS475 sensor for optimal performance?

Ensure the CS475 is mounted on a stable platform with a clear line of sight to the target measurement area. Avoid obstructions and ensure the sensor is at the correct height and angle as specified in the installation manual.

What should I do if the CS475 sensor is not providing accurate readings?

Check for any obstructions in the sensor's path, ensure the sensor is clean, and verify all connections are secure. Calibration may be required if discrepancies continue.

How can I perform routine maintenance on the CS475 sensor?

Regularly inspect the sensor for physical damage, clean the lens with a soft, lint-free cloth, and ensure all connections are tight and free from corrosion.

What are the common troubleshooting steps if the CS475 sensor stops working?

Check power supply, verify cable connections, inspect for physical damage, and review data logger settings. Restart the system if necessary.

Can the CS475 sensor be used in extreme weather conditions?

Yes, the CS475 is designed for a wide range of environmental conditions. Ensure proper installation and maintenance to handle extreme temperatures and weather.

How often should the CS475 sensor be calibrated?

Calibration frequency depends on usage conditions but is generally recommended annually. Follow the manufacturer's guidelines for specific calibration procedures.

What type of data output does the CS475 sensor provide?

The CS475 typically provides digital outputs compatible with Campbell Scientific's data loggers. Check the sensor's specifications for supported protocols.

How can I integrate the CS475 sensor with a data logging system?

Connect the sensor to a compatible data logger using the appropriate cables. Configure the data logger to recognize and record the sensor's output.

What should I do if the CS475 sensor is not communicating with the data logger?

Verify that all cables are connected correctly, check the data logger settings for correct communication parameters, and ensure the sensor is powered.

Is there any software available for managing the CS475 sensor data?

Campbell Scientific provides software tools for data management and analysis. Check their website for the latest software compatible with the CS475.