Calibration
Calibration is the process of comparing the measurements produced by an instrument or device against a known reference standard and adjusting it to ensure accuracy within specified tolerances. It applies to test and measurement equipment, sensors, gauges, safety devices, and any instrument where measurement accuracy is critical. Calibration records include the as-found and as-left readings, the reference standard used, and the calibration date and next due date.
Why it matters
Out-of-calibration instruments can produce inaccurate measurements that lead to defective products, unsafe conditions, environmental breaches, and non-compliance with quality and safety standards. In regulated industries such as construction, mining, and healthcare, calibration records are frequently audited. Missed calibration due dates can invalidate test results and trigger costly re-work or regulatory action.
How MapTrack helps
MapTrack tracks calibration schedules and certificates for every instrument, sends automated reminders before calibration is due, and stores the full calibration history against each asset record.
Frequently asked questions
How often should instruments be calibrated?
Calibration intervals depend on the instrument type, manufacturer recommendations, regulatory requirements, frequency of use, and the consequences of inaccurate readings. Common intervals range from 6 months to 2 years. Critical safety instruments may require more frequent calibration. Historical calibration data showing drift trends can inform optimal interval decisions.
What is the difference between calibration and verification?
Calibration involves comparing a device against a reference standard and making adjustments to bring it within tolerance. Verification is the process of confirming that a device is reading within acceptable limits without making adjustments. Verification is often a quicker field check, while calibration is a more thorough laboratory or workshop procedure.
Related terms
Compliance Management
Compliance management in asset-intensive industries is the systematic process of ensuring that equipment, operations, and personnel meet all applicable regulatory, safety, environmental, and contractual requirements. It encompasses tracking inspection due dates, certifications, licences, safety checks, environmental obligations, and industry-specific standards. Compliance management requires both proactive scheduling and thorough record-keeping.
Test and Tag
Test and tag is the process of visually inspecting and electrically testing portable electrical equipment and appliances to ensure they are safe to use, then attaching a tag indicating the test date, result, next test due date, and tester’s identity. In Australia, the process follows AS/NZS 3760, which specifies testing intervals based on the operating environment. It is a workplace health and safety requirement for electrical equipment used in commercial and industrial settings.
Service History
Service history is the chronological record of all maintenance, repairs, inspections, and modifications performed on an asset throughout its lifecycle. A comprehensive service history includes dates, descriptions of work, parts used, technician details, costs, and supporting documentation such as photos or test certificates. It serves as the permanent maintenance biography of an asset.
Asset Audit
An asset audit is a systematic process of physically verifying the existence, location, condition, and details of assets against the organisation’s asset register. It identifies discrepancies such as missing assets, unrecorded items, incorrect locations, and outdated information. Asset audits may be conducted for financial reporting, regulatory compliance, insurance purposes, or operational integrity.
Pre-Start Inspection
A pre-start inspection is a systematic check performed on plant, equipment, or vehicles before each use or shift to identify defects, damage, or unsafe conditions. It typically follows a standardised checklist covering safety-critical items such as brakes, steering, lights, tyres, guards, fluid levels, and warning devices. Pre-start inspections are a legal requirement under workplace health and safety regulations in most Australian jurisdictions.
See how MapTrack handles calibration