The Fluke Calibration P3213-PSI Deadweight Tester is a precision primary pressure standard designed for laboratories and industrial environments requiring accurate calibration of pressure instrumentation. Operating up to 5,000 PSI (350 bar / 35 MPa), this model uses a single piston-cylinder unit to generate stable, repeatable, and traceable pressures for reliable calibration results.
Water is used as the operating medium, ensuring a clean, oil-free calibration environment that eliminates contamination risks common with hydraulic oils. Pressure is generated by loading precision-calibrated masses onto the piston-cylinder assembly, creating an inherently accurate and stable pressure reference traceable to international metrology standards.
With rugged construction and long service life, the P3213-PSI is suitable for calibration laboratories as well as demanding industrial test facilities that require high-performance, oil-free calibration tools.
Key features include:
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Pressure range: up to 5,000 PSI (350 bar / 35 MPa)
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Single piston-cylinder assembly for reliable calibration
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Oil-free, water-operated design for clean operation
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Primary standard accuracy of ±0.015% of reading
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Robust design for laboratory and field use
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Interchangeable Fluke mass sets allow operation in PSI, bar, MPa, and kgf/cm²
Compatible media: Water and compatible water-based fluids.
Included accessories: Precision piston-cylinder assembly, calibrated mass set, fluid reservoir, test connections, and operator manual.
Compliance: Supports ISO/IEC 17025 traceable calibration; suitable for GLP/GMP compliance.
Benefits for lab users: Provides accurate, oil-free calibration up to 5,000 PSI, reducing measurement uncertainty and ensuring confidence in results while maintaining compliance with international standards.




