Contents

Revision and Copyright Information
Warranty and Assistance
Table of Contents
CS400 Liquid Level Sensor
- 1. Introduction
- 2. Specifications
- 3. Installation
  - 3.1 Initial Inspection and Handling Guidelines
  - 3.2 Installation Guidelines
- 4. Wiring
- 5. Programming Example
  - 5.1 Using ShortCut
  - 5.2 Using CRBasic
  - 5.3 Using Edlog
- 6. Maintenance
  - 6.1 Every Visit, At Least Monthly
  - 6.2 Every Three Months
  - 6.3 Every Two to Three Years or on a Rotating Schedule
- 7. Troubleshooting Hints
Campbell Scientific Contact Information

Campbell Scientific CS440 Instruction Manual

Campbell Scientific CS440 Sensor manual cover

Pages 14

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Campbell Scientific CS440 Sensor Specification

The Campbell Scientific CS440 Sensor is a high-precision submersible pressure transducer designed for reliable measurement of water level and temperature in various hydrological applications. It features a durable stainless steel housing, ensuring resilience against corrosive environments and long-term stability. The sensor operates over a temperature range of -10°C to +80°C, offering versatility in diverse climatic conditions. It provides an accurate measurement range from 0 to 10, 20, 50, or 100 meters of water column pressure, with an accuracy of ±0.1% full scale at constant temperature. The CS440 supports a variety of output options, including SDI-12 and RS-232, facilitating seamless integration with data loggers and telemetry systems.

Equipped with a high-quality piezoresistive silicon sensor, the CS440 delivers precise and reliable water level readings, essential for flood warning systems, irrigation management, and groundwater monitoring. The integrated temperature sensor enhances measurement accuracy by compensating for temperature variations, which is crucial for maintaining data integrity. The sensor's low power consumption makes it ideal for remote installations powered by solar panels or battery packs, ensuring continuous operation in off-grid locations.

The CS440's vented cable provides atmospheric pressure compensation, eliminating the need for additional barometric pressure sensors and simplifying deployment. The cable's rugged construction ensures long-lasting performance even in harsh field conditions. With its compact design and easy installation, the CS440 is a versatile and efficient solution for environmental monitoring professionals seeking a reliable method to measure water levels and temperatures accurately. The sensor's robust design, high accuracy, and flexible connectivity options make it a valuable tool in hydrological research and water resource management.

Campbell Scientific CS440 Sensor F.A.Q.

How do I properly install the Campbell Scientific CS440 Sensor?

To install the CS440 Sensor, first select an appropriate site free from obstacles that could interfere with measurement. Secure the sensor on a stable structure using the mounting kit provided. Ensure the sensor is level and oriented correctly according to the user manual.

What are the common troubleshooting steps if the CS440 Sensor is not responding?

Check all connections and ensure the sensor is powered. Verify that the data logger is correctly configured to communicate with the sensor. Inspect the sensor for any physical damage and, if necessary, perform a reset according to the manual.

How can I calibrate the CS440 Sensor for accurate measurements?

Calibration is generally not required as the CS440 Sensor is factory-calibrated. However, if needed, follow the calibration procedure outlined in the manual using reference standards. Regular checks and recalibration may be necessary if operating in harsh environments.

What maintenance is required to ensure the longevity of the CS440 Sensor?

Regularly inspect the sensor for physical damage and clean it to remove dust or debris. Periodically check the cables for wear and verify the integrity of connections. Store the sensor properly if it is not in use for extended periods.

How can I integrate the CS440 Sensor with a data logger?

Connect the sensor to the data logger using the appropriate cables and configure the logger using the software that supports the CS440 Sensor. Ensure the settings match the sensor's specifications for accurate data collection.

What should I do if the CS440 Sensor is providing inconsistent data?

Ensure the sensor is correctly installed and free from obstructions. Check the settings on the data logger and confirm they match the sensor's specifications. Perform a diagnostic check as per the manual to identify any issues.

Can the CS440 Sensor be used in harsh environmental conditions?

Yes, the CS440 Sensor is designed for outdoor use and can withstand various environmental conditions. However, it is recommended to follow the installation guidelines and use protective measures if necessary to ensure optimal performance.

How do I perform a firmware update on the CS440 Sensor?

Connect the sensor to a computer with the manufacturer's software installed. Download the latest firmware from the Campbell Scientific website and follow the update instructions provided in the software interface.

What is the best way to clean the CS440 Sensor?

Use a soft, damp cloth to gently clean the sensor surface. Avoid using harsh chemicals or abrasive materials that could damage the sensor. Regular cleaning helps maintain optimal sensor function.

How can I verify the accuracy of the CS440 Sensor's readings?

Perform a field calibration using known reference values and compare them with the sensor's output. Regularly cross-check the data against other instruments or sensors to ensure consistency and accuracy.