Contents

Revision and copyright information
Table of contents
1. Introduction
2. Precautions
3. Initial inspection
4. QuickStart
5. Overview
6. Specifications
- 6.1 Calibration
- 6.2 Accuracy
- 6.3 Output signal
  - 6.3.1 P2546A switching characteristics
  - 6.3.2 P2546C output signal
  - 6.3.3 P2546D output signal
- 6.4 Environmental
- 6.5 Physical
7. Installation
- 7.1 Siting
- 7.2 Mount the sensor
- 7.3 Wiring
- 7.4 Programming
8. Troubleshooting and maintenance
- 8.1 Troubleshooting
- 8.2 Maintenance
9. References
Appendix A. Importing Short Cut code into CRBasic Editor
Appendix B. Example programs
- B.1 P2546A programs
- B.2 P2546C programs
- B.3 P2546D program
Limited warranty
Assistance
Safety
Campbell Scientific Regional Offices

Campbell Scientific P2546A Product Manual

Campbell Scientific P2546A Sensor manual cover

Pages 29

Year 0

Language(s)

of 29

Campbell Scientific P2546A Sensor Specification

The Campbell Scientific P2546A is a precision anemometer designed for accurate wind speed measurement in meteorological and environmental monitoring applications. This robust sensor utilizes a three-cup rotor assembly to capture wind dynamics with a low threshold, ensuring reliable performance even in low wind conditions. The P2546A operates on an optical chopper disc principle, translating rotational speed into a frequency output that correlates directly with wind speed. It features a sturdy construction with corrosion-resistant materials, making it suitable for long-term outdoor installation in harsh environments. The sensor is equipped with a durable stainless steel shaft and sealed bearings, reducing maintenance needs and enhancing longevity.

The P2546A's measurement range extends from 0 to 75 meters per second, with an accuracy of ±0.3 meters per second or 1% of reading, whichever is greater. This ensures precise data collection essential for research-grade applications. The sensor's power requirements are minimal, operating efficiently on a low voltage supply, which supports deployment in remote locations. The P2546A is compatible with Campbell Scientific dataloggers and can easily integrate with existing monitoring systems, offering flexibility in data acquisition and analysis. Its compact design and straightforward mounting options simplify installation, while its lightweight structure minimizes impact on supporting structures. Overall, the Campbell Scientific P2546A anemometer is engineered for reliability, precision, and durability, making it a preferred choice for professionals in meteorological and climatological studies.

Campbell Scientific P2546A Sensor F.A.Q.

What is the recommended installation procedure for the Campbell Scientific P2546A Sensor?

To install the P2546A Sensor, first select a location with unobstructed wind flow. Mount the sensor securely on a mast using the supplied mounting hardware. Ensure the sensor is level and aligned with true north. Connect the sensor cable to a compatible data logger using the appropriate wiring configuration.

How can I troubleshoot if the P2546A Sensor is not providing accurate wind speed data?

If the P2546A Sensor is not reading accurately, check for physical obstructions or damage to the sensor. Verify all cable connections and inspect for any signs of corrosion. Ensure that the data logger is configured correctly to read the sensor inputs. Calibration may be necessary if errors persist.

What maintenance is required for the P2546A Sensor to ensure long-term reliability?

Regularly inspect the P2546A Sensor for dirt, debris, or bird droppings and clean with a soft brush or cloth. Check the sensor bearings for wear and ensure that the mounting hardware is secure. Verify cable integrity and replace any damaged components as needed.

How do I connect the P2546A Sensor to a Campbell Scientific data logger?

Connect the sensor wires to the data logger as per the wiring diagram in the sensor manual. Typically, this involves connecting power, ground, and signal wires to the corresponding terminals on the data logger. Ensure that the data logger is configured to read the sensor output correctly.

What are the common causes of signal drift in the P2546A Sensor, and how can it be corrected?

Signal drift in the P2546A Sensor can be caused by environmental factors such as temperature fluctuations or humidity. Ensure that the sensor is properly shielded and calibrated. Regular maintenance and recalibration can mitigate signal drift.

Can the P2546A Sensor be used in extreme weather conditions?

Yes, the P2546A Sensor is designed to operate in a wide range of environmental conditions. However, ensure that the sensor is properly mounted and shielded from direct exposure to severe weather elements to maintain accuracy and longevity.

How frequently should the P2546A Sensor be calibrated to ensure accurate measurements?

It is recommended to calibrate the P2546A Sensor annually or as specified by the manufacturer's guidelines. More frequent calibration may be necessary in harsh environments or if significant measurement discrepancies are observed.

What should I do if the P2546A Sensor is not spinning freely?

If the sensor is not spinning freely, inspect for physical obstructions such as ice, debris, or insects. Check the bearings for wear or damage and replace them if necessary. Ensure that the sensor is properly mounted and aligned.

How do I perform a functional check on the P2546A Sensor?

To perform a functional check, visually inspect the sensor for damage and ensure it spins freely. Connect the sensor to a data logger and verify that it outputs consistent and expected readings. Simulate wind conditions to test response accuracy.

What are the electrical specifications required for the P2546A Sensor?

The P2546A Sensor typically requires a power supply within the range specified in the manual, often 5 to 15 VDC. Ensure that the data logger or power source can provide the required voltage and current to operate the sensor effectively.