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MapTrack

Calibration register

Every instrument with its due date, its last result and its certificate on the same record, so the register is the evidence rather than a summary of it.

Lachlan McRitchie

Lachlan McRitchie

GM of Operations

Updated 3 September 2026
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An out-of-tolerance result is a question about past work

A due-date tracker treats calibration as a recurring task that is either done or overdue. That framing is fine until an instrument comes back out of tolerance, at which point the useful question is not about the instrument at all - it is about everything measured with it since its last good calibration. Answering that needs two things a date column cannot give you: a dated history of results for that specific instrument, and enough identification to know which physical item was used. This is why registering four wrenches as four assets rather than one line item matters more than it first appears. MapTrack holds the dated history and the identity; the decision about what to do with the affected work is a quality judgement that stays with you.

  • What the register gives you: The date the instrument was last known in tolerance, and therefore the period in question.
  • What it does not do: It does not assess the impact, verify a laboratory's accreditation, or decide whether work must be redone.

Why "calibration register" and "calibration schedule" are not the same thing

A schedule answers what is due next. A register answers what happened, to which instrument, when, and with what evidence. Most teams start by building a schedule because that is the immediate pressure, then discover at audit or at an out-of-tolerance event that the schedule cannot produce evidence - it points at certificates held somewhere else, under filenames that may or may not identify the instrument. Building the register first gives you the schedule for free, because due dates are derived from records that already exist on each asset.

The problem

Calibration records tend to be split three ways: a due-date spreadsheet, a folder of PDF certificates, and the instruments themselves. Each is maintained by a different person and they drift. The spreadsheet says an instrument is in date, the certificate folder has no PDF for it, and nobody can say which of the four torque wrenches was actually used on the job in question. The problem shows up hardest when a result comes back out of tolerance, because answering 'what work is affected' means reconstructing where that instrument has been.

How MapTrack addresses it

MapTrack keeps the instrument, its due date, its result and its certificate on one asset record. Set the interval per instrument and get due and overdue alerts rather than remembering. Filter by due date to send a batch away together instead of one at a time. Because the history is dated and attached to the item, an out-of-tolerance result comes with the record of when it was last in tolerance. The same register holds test and tag, fire equipment and lifting gear, so calibration is not a separate system with its own spreadsheet.

How it works

  • 1

    Register each instrument individually

    One asset per instrument, with its own identifier. Four torque wrenches are four assets, not one row called "torque wrench".

  • 2

    Set the interval and attach the current certificate

    Record last calibration, next due date and the certificate as it stands today. Bulk import if you are starting from a spreadsheet.

  • 3

    Work the due list as a batch

    Filter by next due to plan a round. Due and overdue alerts mean the list arrives rather than being remembered.

  • 4

    Record the result, not just the date

    Log in-tolerance or out-of-tolerance with the new certificate. The dated history is what answers questions later.

What sits on each instrument

One record per instrument, so identity, schedule and evidence cannot drift apart.

Identity and location

Serial or asset ID, type and where it currently is, so you know which physical item you are looking at.

Interval and next due

Per instrument, with due and overdue alerts. Filter to build a batch for the calibration provider.

Results and certificates

In-tolerance and out-of-tolerance results in dated sequence, with the certificate attached to the item.

Asset documents & certificates

Custody, when it matters

If instruments are signed out to people or vehicles, the register can show who currently holds one.

Equipment custody

Why a register beats a due-date spreadsheet

Instruments are individuals

Four wrenches are four assets. A row called "torque wrench" cannot tell you which one was used.

Certificate lives on the item

The evidence for an instrument is its own history, not a folder search by filename.

Batch the round

Filter by due date and send a group away together instead of discovering them one at a time.

Answers the awkward question

When a result comes back out of tolerance, the dated history shows when it was last in tolerance.

The same shape, applied to other recurring checks

Test & tag register

Interval, result and certificate per item, driven by AS/NZS 3760.

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Bulk inspections & testing

Running whole rounds across sites rather than instrument by instrument.

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Lifting gear inspections

Periodic inspection of slings, chains and shackles on the same register.

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Where calibration recordkeeping obligations usually come from

For most teams the requirement to control and record calibrated measuring equipment comes from the quality system they operate under, or from plant duties where a measurement affects safety. The instruments below are the ones our customers cite. MapTrack supports the records; it does not confer compliance or verify a calibration provider's accreditation.

Check the current source

MapTrack keeps the records these standards ask you to keep. It does not certify your work or make you compliant, and the current text of each instrument is the authority.

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Frequently asked questions

At minimum: what the instrument is and how it is identified, who calibrated it and when, the result, the next due date, and the certificate itself. The identification matters more than people expect - a register that says "torque wrench" rather than a specific serial or asset ID cannot tell you which of your four wrenches was used on a job. In MapTrack each instrument is an asset, so the identifier, the certificate and the due date are the same record rather than three lists that have to agree.

Yes. Each calibrated item is an asset, and the certificates, due dates and results attach to it. Set expiry alerts so you know when the next calibration is due, and the evidence for that instrument is its own history when an auditor asks.

This is the case a due-date spreadsheet handles worst. An out-of-tolerance result is not just a failed check on that instrument; it raises a question about the work that instrument was used for since its last good calibration. Recording the result against the asset gives you the dated history to answer that question - when it was last in tolerance, and therefore which period is in doubt. MapTrack holds the record; deciding what to do about the affected work is a quality judgement, not something software should assert.

Set the next due date on each asset and you get due and overdue alerts. Filter and report by due date so you can plan a calibration round - send five instruments off together rather than discovering them one at a time.

Yes. MapTrack is asset-agnostic, so gauges, torque wrenches, multimeters, gas detectors and fixed plant instruments all sit in the same register. Use types or custom fields to separate classes. The workflow is the same: due date, result, certificate, history.

That depends on the instrument and on what your quality system or customer requires - some work needs an accredited laboratory, some is done in house against a reference. MapTrack does not make that judgement and does not verify accreditation. It records who did it and stores the certificate they issued, so the register reflects the arrangement you have chosen.

Yes, and it is worth doing deliberately. If the schedule lives in your provider's system, changing providers means rebuilding it from certificates. Keeping the register on your own assets means the provider supplies certificates into your record, so a change of provider is a change of supplier rather than a loss of history.

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