Calibration of Pyranometer in NABL Scope

By ITC India Pvt Ltd
📧 info@itcindia.org | 📞 +91-9316473033 | 🌐 www.itcindia.org

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If you’re working in solar energy, climate research, or meteorology, you likely rely on accurate solar radiation data. Here’s the kicker, if it isn’t properly calibrated, you could be working with flawed information.

Let’s dive into why pyranometer calibration is essential. How it works? How ITC India Pvt Ltd supports industry-standard calibration services in India?

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Common Calibration Mistakes to Avoid

Detail errors like:

  • Skipping environmental logging for calibration
  • Using expired reference sensors
  • Incorrect mounting angles
    This can guide users toward better practices.

What Is a Pyranometer?

A pyranometer measures global solar irradiance—the total sunlight (direct + diffuse) on a flat surface. It’s critical for:

  • Monitoring solar power plant performance
  • Conducting environmental studies
  • Supporting climate models and research
  • Ensuring agricultural efficiency

🔗 Read more: What is a Pyranometer – Kipp & Zonen


Why Is Pyranometer Calibration Important?

  • Harsh weather
  • UV radiation
  • Dust and aging

Benefits of Calibration:

  • Fulfills compliance with WMO standards
  • Improves consistency across different sites and instruments
  • Maintains long-term data integrity

The World Meteorological Organization suggests Calibration every 2 years, for critical applications or harsh conditions, annual calibration is ideal.

🔗 Standard Reference: WMO CIMO Guide


The Pyranometer Calibration Process

1. Use a Certified Reference Sensor

We place your pyranometer next to a reference standard traceable to the World Radiometric Reference (WRR).

2. Outdoor Exposure Setup

Both sensors are mounted side by side in a clear location under the sun.

3. Data Logging Period

Readings are recorded over several days to average out variations.

4. Calculation & Adjustment

A calibration factor is derived to align your pyranometer’s data with the reference.

5. Issuance of Calibration Certificate

You’ll receive a report documenting calibration constants, methods, and environmental conditions.


Why Choose ITC India Pvt Ltd?

ITC India Pvt Ltd provides reliable, ISO-traceable pyranometer calibration services across India.

1 On-site & in-lab options
2 less turnaround time
3 Complies with international standards NABL calibration in Pyranometer
4 Trusted by solar farms, research institutions, and EPCs nationwide

📞 Contact us at +91-9316473033 or 📧 info@itcindia.org to schedule your calibration today.
🌐 Visit: www.itcindia.org


Maintenance Tips for Long-Term Accuracy

  • Clean the sensor dome weekly or after heavy dust events
  • Check for physical wear or corrosion
  • Log all calibration dates and conditions


📧 Need a quote or consultation?
Reach out to ITC India Pvt Ltd at info@itcindia.org or call +91-9316473033.