Contents

Revision and copyright information
Table of contents
1. Introduction
2. Precautions
3. Initial inspection
4. QuickStart
5. Overview
6. Specifications
- 6.1 Temperature measurement
- 6.2 Relative humidity measurement
7. Installation
- 7.1 Wiring to data logger
- 7.2 Data logger programming
- 7.3 CRBasic programming
- 7.4 Siting
  - 7.4.1 Installation in a radiation shield
  - 7.4.2 Mount the shield
8. Operation
- 8.1 Sensor measurement
- 8.2 Measurements in programs with fast scan rates
- 8.3 Long cables
- 8.4 Power conservation
- 8.5 Measuring multiple SDI-12 sensors
9. Troubleshooting and maintenance
- 9.1 Troubleshooting
- 9.2 Maintenance
- 9.3 Calibration
- 9.4 Sensor element replacement
10. Attributions and references
Appendix A. Importing Short Cut code into CRBasic Editor
Appendix B. CRBasic example program
Appendix C. Environmental performance
- C.1 Exposure to pollutants
- C.2 Operating range of the RH element
- C.3 Measurement below 0 C
Appendix D. SDI-12 sensor support
- D.1 SDI-12 command basics
  - D.1.1 Acknowledge active command (a!)
  - D.1.2 Send identification command (al!)
  - D.1.3 Start verification command (aV!)
  - D.1.4 Address query command (?!)
  - D.1.5 Change address command (aAb!)
  - D.1.6 Start measurement commands (aM!)
  - D.1.7 Start concurrent measurement commands (aC!)
  - D.1.8 Start measurement commands with cyclic redundancy check (aMC! and aCC!)
  - D.1.9 Stopping a measurement command
  - D.1.10 Send data command (aD0! aD9!)
  - D.1.11 Continuous measurement command (aR0! aR9!)
- D.2 References
- D.3 SDI-12 transparent mode
  - D.3.1 Changing an SDI-12 address
Appendix E. Sensor element calibration
Limited warranty
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Campbell Scientific HygroVUE10 Product Manual

Campbell Scientific HygroVUE10 Sensor manual cover

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Campbell Scientific HygroVUE10 Sensor Specification

The Campbell Scientific HygroVUE10 Sensor is a state-of-the-art device designed for precise measurement of relative humidity and temperature in various environmental conditions. It employs a robust capacitive polymer sensor to measure humidity and a platinum resistance thermometer for temperature, ensuring high accuracy and reliability. The sensor is housed in a compact, durable enclosure that is resistant to dust and water, making it suitable for both indoor and outdoor applications.

Operating over a temperature range of -40°C to 70°C, the HygroVUE10 delivers accurate humidity readings from 0 to 100% RH with a typical accuracy of ±1.5% RH, and temperature measurements with an accuracy of ±0.1°C. The sensor's fast response time and low hysteresis contribute to its efficiency in dynamic environments. It features a digital SDI-12 interface, facilitating seamless integration with data loggers and other data acquisition systems for remote monitoring and data collection.

The HygroVUE10 is designed for low power consumption, making it ideal for long-term field deployments where power resources are limited. Its compact design allows for easy installation and maintenance, while the sensor's protective screen minimizes the impact of dust and contaminants, ensuring longevity and consistent performance. The sensor is suitable for applications in meteorology, agriculture, environmental monitoring, and HVAC systems, where precise and reliable humidity and temperature data are critical.

Overall, the Campbell Scientific HygroVUE10 Sensor offers a combination of durability, precision, and ease of integration, making it a versatile tool for professionals seeking dependable environmental measurement solutions.

Campbell Scientific HygroVUE10 Sensor F.A.Q.

How do I install the Campbell Scientific HygroVUE10 Sensor?

To install the HygroVUE10 Sensor, mount it in a location with good airflow and free from direct sunlight. Secure the sensor using the provided mounting bracket and connect it to your data logger following the wiring diagram in the user manual.

What is the best way to maintain the HygroVUE10 Sensor?

Regularly inspect the sensor for debris or damage. Clean the protective screen with a soft brush or compressed air. Verify calibration annually or as needed based on your specific application requirements.

How can I troubleshoot inaccurate readings from the HygroVUE10 Sensor?

Ensure the sensor is properly connected and positioned. Check for obstructions and ensure the sensor is clean. Verify the data logger configuration matches the sensor's specifications. Recalibration may be required if discrepancies persist.

What should I do if the HygroVUE10 Sensor is not responding?

Check the power supply and connections to the data logger. Ensure the cables are intact and the connectors are secure. Test the sensor with a different data logger to rule out logger issues.

Can the HygroVUE10 Sensor be used in extreme weather conditions?

The HygroVUE10 Sensor is designed for a wide range of environmental conditions but should not be exposed to conditions beyond its specified operational limits (e.g., extreme temperatures or humidity). Use additional protection if necessary.

How do I calibrate the HygroVUE10 Sensor?

Calibration involves comparing sensor output with a known reference. Follow the calibration procedure outlined in the sensor's manual, using standard calibration equipment to adjust the sensor as needed.

Is the HygroVUE10 Sensor compatible with all Campbell Scientific data loggers?

The HygroVUE10 Sensor is compatible with most Campbell Scientific data loggers, but it is recommended to check specific compatibility in the sensor's documentation or consult with Campbell Scientific support.

What is the typical lifespan of the HygroVUE10 Sensor?

The typical lifespan of the HygroVUE10 Sensor is several years, depending on environmental conditions and maintenance practices. Regular maintenance can extend the sensor's life.

How do I connect the HygroVUE10 Sensor to a computer for data analysis?

Use a compatible data logger to collect data from the HygroVUE10 Sensor, then connect the logger to a computer via USB, serial, or Ethernet connection. Use Campbell Scientific software to download and analyze the data.

What precautions should be taken when storing the HygroVUE10 Sensor?

Store the HygroVUE10 Sensor in a clean, dry environment away from direct sunlight and extreme temperatures. Ensure the sensor is clean and dry before storage to prevent damage.