-- Confidence in Every Measurement
What Is Calibration?
Calibration is the process of comparing a measuring instrument’s readings against a precise reference standard to determine and correct any deviation from the true value.
For atmospheric or barometric pressure instruments — such as barometers, pressure transmitters, and environmental monitors and calibration ensures every reading accurately reflects actual atmospheric conditions.
By establishing traceability to recognized standards, calibration guarantees your pressure measurements are accurate, consistent, and reliable across time and environments.
Why Pressure Calibration Is Important?
Atmospheric pressure plays a vital role in a wide range of scientific, industrial, and environmental applications, including meteorology, laboratory testing, aerospace, pharmaceutical stability studies, and calibration laboratories.
Over time, pressure sensors can drift due to aging, temperature variation, or environmental stress. Without periodic calibration, readings may no longer represent true atmospheric pressure, leading to:
- Inaccurate data for research or process validation
- Quality deviations in environmental testing
- Regulatory compliance issues
- Improper reference conditions for other calibrated instruments
Regular calibration ensures:
✅ Traceable Accuracy — Linked to national and international standards
✅ Reliable Data — Confidence in laboratory and field measurements
✅ Regulatory Compliance — Supports ISO/IEC 9001 and quality assurance programs
✅ Consistency Across Instruments — Harmonized readings among multiple sites or sensors
STN’s Atmospheric Pressure Calibration Capability
STN Instruments offers precise and efficient atmospheric pressure calibration services, supported by high-quality reference equipment and experienced metrology professionals.
In-House Reference Standards
Our laboratory is equipped with:
- PACE 1001 Pressure Controller/Indicator (Druck) — a precision reference instrument with exceptional accuracy and repeatability for barometric and gauge pressure calibration.
- Controlled Pressure Chamber — enables stable and reproducible conditions to perform comparison calibration across a wide range of pressures.
Together, these systems allow STN to provide traceable and high-accuracy calibration for instruments such as:
- Barometers and barometric transmitters
- Atmospheric pressure modules and sensors
- Environmental and meteorological monitors
- Pressure references used in laboratory standards
All calibrations are performed following good metrology practice and include documented results, uncertainty statements, and traceability to international standards.
Fast Turnaround – Saving You Time
STN understands that accurate instruments are critical for ongoing operations. We offer fast turnaround times for both routine and rush calibration services to minimize equipment downtime and keep your work on schedule.
Our flexible scheduling and responsive support help laboratories, manufacturers, and research organizations maintain productivity without compromising quality.
Contact Us
For questions about atmospheric pressure calibration, uncertainty evaluation, or service scheduling, please contact STN Instruments.
Our metrology team is ready to support your calibration, verification, and compliance needs with precision and reliability.
📧 Email: info@stninstruments.com
🌐 Website: www.stninstruments.com
📍 Location: Portland, Oregon, USA
STN Instruments – Reliable Measurement for a Trusted World.