SK CALIBRATION KNOWLEDGE

Instrument calibration knowledge centre

Practical information for quality teams, engineers, technicians and equipment owners who need to plan calibration, interpret results and make confident measurement decisions.

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15 articles

2D illustration of SK technicians comparing an instrument with a reference standard and recording results

Calibration fundamentalsAbout 8 minutes

What is calibration? Meaning, process and importance

Understand instrument calibration, how it differs from adjustment, what to review on a certificate, suitable intervals and the role of ISO/IEC 17025.

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Testo 108 contact thermometer with its temperature probe

Using temperature instrumentsAbout 7 minutes

How to use a probe thermometer correctly and reduce measurement errors

Practical probe thermometer guidance: sensor selection, insertion depth, stable readings, care and checks, with Testo and DeltaTrak options from SK.

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A specialist reviewing instrument calibration history and due dates

Equipment managementAbout 7 minutes

How often should measuring instruments be calibrated?

A risk-based guide to calibration intervals using application, environment and historical performance rather than a fixed six- or twelve-month rule.

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An engineer comparing measurement results with a reference standard

Measurement terminologyAbout 6 minutes

Calibration, verification and adjustment: what is the difference?

Understand how calibration, verification and adjustment differ and when each is used in a measurement management system.

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A quality professional reviewing a calibration certificate

Calibration certificatesAbout 8 minutes

How to read a calibration certificate

Review instrument identity, point results, uncertainty, traceability and conformity statements on a calibration certificate.

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A calibration laboratory and reference standards

Laboratory standardsAbout 7 minutes

What is ISO/IEC 17025 and how do you choose a laboratory?

Understand ISO/IEC 17025, accredited scopes and what to verify when selecting a calibration laboratory.

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An engineer evaluating measurement results and uncertainty

Measurement resultsAbout 7 minutes

What is measurement uncertainty?

A practical explanation of measurement uncertainty, how it appears on certificates and how it supports acceptance decisions.

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A specialist checking an instrument and accessories before calibration

Calibration preparationAbout 7 minutes

How to prepare instruments for calibration

A practical checklist for instrument details, ranges, points, accessories, condition and packing before laboratory calibration.

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An SK specialist calibrating an instrument on site

Calibration service planningAbout 7 minutes

On-site versus laboratory calibration

Compare on-site and laboratory calibration across downtime, environment, range, uncertainty and accredited-scope considerations.

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A specialist calibrating a scale with traceable reference weights

Scales and massAbout 8 minutes

How to calibrate scales and standard weights for their intended use

A practical guide to calibration points, reference weights, error evaluation and the information required before scale and mass calibration.

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A specialist calibrating a pressure gauge against a reference standard

PressureAbout 8 minutes

What should be checked during pressure-gauge calibration?

A guide to pressure-gauge preparation, test points, increasing and decreasing cycles, hysteresis, units, connections and acceptance criteria.

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A specialist calibrating a temperature instrument in a controlled source

TemperatureAbout 8 minutes

How to select points and methods for temperature-instrument calibration

Guidance for thermometers, probes and data loggers covering operating range, immersion, stabilization and measurement uncertainty.

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2D illustration of SK technicians calibrating a flowmeter against a reference system

FlowAbout 8 minutes

How to calibrate a flowmeter for its actual application

A practical flowmeter calibration guide covering meter technology, fluid, range, calibration points, output signals and laboratory-versus-on-site selection.

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A standard-weight set prepared for mass calibration

Mass and standard weightsAbout 7 minutes

Preparing class and nominal values for standard-weight calibration

A practical guide to standard-weight calibration covering nominal value, class, surface condition, transport, use and certificate requirements.

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A temperature and humidity instrument in a calibration system

HumidityAbout 7 minutes

Selecting points and preparing humidity instruments for calibration

Guidance for hygrometers and temperature-humidity loggers covering operating points, stabilization, sensors and environmental conditions.

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Topics covered

Calibration principles and terminology
Certificates and measurement results
Risk-based calibration intervals
ISO/IEC 17025 and metrological traceability

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