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Recalibration & Repair Services

Interface, a world leader in the manufacture of high accuracy load cells, force sensors, and torque transducers, provides calibration, recalibration, and repair service for all products. Force calibration on strain-gage type transducers, amplified transducers, and force measurement systems is routinely performed on devices from any manufacturer as well as on Interface products. We do system calibrations consisting of any brand of load cell with any brand of digital indicator or signal conditioner.

Calibration capability covers the range from a fraction of a pound up to 1,000,000 pounds in tension or compression. Universal calibrations (tension and compression) are normally performed with a single setup, providing best repeatability results with fast turnaround time. NIST traceable dead weights and reference force standards guarantee low uncertainty.

Turnaround is typically 5 working days. Expedited service is available.

We will custom configure calibrations as needed. Five force points ascending and one point descending is standard. Options include extra force points, special shunt calibrations, and conformance to industry procedures such as ASTM E74, ANSI/NCSL Z540, EN10002-3, and ISO 376.

ASTM E74 Standard Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines is commonly used in force calibration in many industries in addition to materials testing. It features 3 calibration runs each with 10 points and load string rotation between runs. Data is curve fitted and plotted and uncertainty is computed.

All calibration certificates are the most complete in the industry. Certificate information includes tabulated measurement variables data, zero balance, bridge input/output resistance, computed nonlinearity and hysteresis, and traceability statements. Force calibration at Interface is A2LA Accredited per ISO/IEC 17025. An accredited certification is offered at a nominal charge.

If an initial evaluation reveals that a transducer requires repair before a reliable calibration can be made, Interface will advise the owner before work is done. Interface repairs all Interface products as requested.

Why Use Interface?

Broadest Capability

• 50 grams to 1 million lbf
• Nine hydraulic systems
• Six deadweight systems
• Ten dedicated technicians
• Fixtures for all manufacturers' cells

Highest Quality

• Hydraulic systems use a reversing actuator to apply tension and compression in the same setup
• Custom calibration
• Direct traceability to NIST
• Only NIST certified Gold Standard™ Load Cells used as reference standards
• Interface Gold Standard Calibration Software used for data collection & analysis
• Test data permanently archived
• Systems calibrations with any combination of load cells/instrumentation
• Industry's most complete calibration certificate
• Quick turnaround -- consistent 3 to 5 day turnaround (2-day expedited service available)

We Calibrate

• Load Cells
• Load Pins
• Rotary Torque Transducers
• Reaction Torque Transducers
• Crane Scales
• Rod End Cells
• Tension Links

Accreditations

• A2LA - accredited certificate - load cells only
• ISO GUIDE 17025 - Competence of calibration and testing laboratories.
• ANSI/NCSL Z540-1
• ISO 10012-1
• MIL-STD-45662A
• E74 Calibrations
• Class AA Calibrations
• NUPIC - Nuclear Procurement Listed

Repair Services

• Dependable 7 day turnaround for repair services (includes calibration)
• Connector replacement on any manufacturers' load cell (if available)
• Highly trained and experienced repair technicians
• Complete load cell evaluation prior to repair and calibration free of charge