Campbell Scientific SR20-T2 Product Manual

Campbell Scientific SR20-T2 Sensor manual cover

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Campbell Scientific SR20-T2 Sensor Specification

The Campbell Scientific SR20-T2 Sensor is a high-precision pyranometer designed for measuring solar radiation with a high degree of accuracy and reliability. This sensor is equipped with two thermopile detectors and a built-in Pt-100 temperature sensor, which work together to provide reliable solar radiation data by compensating for temperature variations. The SR20-T2 is classified as a secondary standard pyranometer, adhering to the ISO 9060:2018 classification, making it suitable for scientific research and high-precision meteorological applications.

Featuring a spectral range from 285 to 3000 nanometers, the SR20-T2 ensures comprehensive solar radiation measurement across the entire solar spectrum. It boasts a low zero offset and a high sensitivity, typically around 7 to 15 microvolts per watt per square meter, which is critical for accurate data collection in diverse environmental conditions. The sensor's design includes a robust, weather-resistant enclosure that protects it from harsh environmental factors, ensuring longevity and consistent performance.

The SR20-T2 also incorporates a desiccant cartridge to prevent moisture accumulation and a double dome construction, which reduces thermal offsets and enhances measurement stability. The sensor is compatible with a wide range of data loggers and can be easily integrated into existing measurement systems. Its operating temperature range of -40°C to 80°C and its capability to withstand various environmental conditions make it versatile for both field and laboratory settings. Overall, the Campbell Scientific SR20-T2 Sensor is a reliable and precise tool for professionals in meteorology, climatology, and solar energy research, providing dependable data for critical analysis and decision-making.

Campbell Scientific SR20-T2 Sensor F.A.Q.

How do I properly install the Campbell Scientific SR20-T2 Sensor for optimal performance?

To install the SR20-T2 sensor, ensure that it is mounted on a level surface with an unobstructed view of the sky. Use the provided mounting hardware and ensure that the sensor is aligned correctly with the sun's path. Regularly check and calibrate the sensor to maintain accuracy.

What are the common troubleshooting steps if the SR20-T2 sensor is not reading correctly?

First, check all electrical connections and ensure that the sensor is properly connected to the data logger. Verify that the sensor is clean and free from obstructions. Additionally, check the calibration settings and ensure the data logger is configured correctly for the sensor type.

How often should the SR20-T2 sensor be calibrated for accurate readings?

The SR20-T2 sensor should be calibrated annually to ensure the accuracy of its readings. More frequent calibrations may be necessary if the sensor is exposed to harsh environmental conditions.

What maintenance practices should be followed to ensure the longevity of the SR20-T2 sensor?

Regularly clean the sensor dome with a soft, lint-free cloth and mild detergent. Inspect the sensor for any physical damage or corrosion, especially after severe weather conditions. Ensure that the mounting is secure and recalibrate the sensor as needed.

Can the SR20-T2 sensor be used in extreme weather conditions?

Yes, the SR20-T2 sensor is designed to operate in a wide range of environmental conditions. However, it should be regularly inspected for damage and cleaned after severe weather events to maintain performance.

What is the best way to clean the SR20-T2 sensor without damaging it?

Use a soft, lint-free cloth and a mild detergent or distilled water. Gently wipe the sensor dome to remove dust and debris. Avoid using abrasive materials or strong solvents that could damage the sensor's surface.

How can I ensure accurate data logging with the SR20-T2 sensor?

Ensure that the data logger is set to the correct measurement range and interval for the SR20-T2 sensor. Regularly check connections and the sensor's calibration. Use shielded cables to minimize electrical interference.

What should be done if the SR20-T2 sensor dome gets scratched or damaged?

If the sensor dome is scratched or damaged, it should be replaced to ensure accurate readings. Contact Campbell Scientific for replacement parts and guidance on replacing the dome.

Is it possible to integrate the SR20-T2 sensor with other meteorological sensors in a single system?

Yes, the SR20-T2 sensor can be integrated with other meteorological sensors using a compatible data logger. Ensure that the data logger supports multiple input channels and configure each sensor correctly in the system.

What data output options are available with the SR20-T2 sensor?

The SR20-T2 sensor provides analog voltage output, which can be measured by most data loggers. It is essential to configure the data logger to match the sensor's output specifications to ensure accurate data capture.