Calibration Logbook & Equipment Register | USP 1058 Tracker with OOT Assessment (Excel)

Most calibration logs stop at due dates. A GMP lab also has to show what happened when an instrument failed, and who changed what. The Calibration & Equipment Logbook is an Excel workbook built around public concepts from USP <1058> (analytical instrument qualification, groups A/B/C) and EU GMP Annex 15.

Register each instrument with its group, location, owner role, DQ/IQ/OQ/PQ dates and calibration interval. The next-due date is worked out from the last good calibration and moved back off weekends and your own holidays. Items that are overdue or due soon are flagged in red or amber.

Each calibration records as-found and as-left readings against the tolerance and gives pass or fail automatically. It also checks that the reference standard's certificate was in date. When an as-found reading fails, the row stays red until you link an out-of-tolerance (OOT) impact assessment. That assessment looks back to the last good calibration and records days at risk, affected results and batches, a severity x likelihood risk score, the decision and the linked investigation.

A maintenance log and simple change-history fields (what, old/new value, why, who, when, reviewer) complete the record. A 12-tile dashboard and charts show where to act.

Built for Microsoft Excel 2019/365 (.xlsx, no macros). Tested in LibreOffice Calc. Google Sheets import possible but not officially supported.

What's included

• Calibration-Equipment-Logbook.xlsx (8 tabs):

• Start Here: quick start, colour key, the rules behind each flag, disclaimer

• Dashboard: 12 live tiles (overdue, due soon, due this month, OOT events, unactioned OOT, expired standards, and more), status by USP <1058> group and by location, the next 10 calibrations due, a 12-month due table and 2 charts

• Equipment Register (300 rows): group A/B/C, qualification dates and status, interval, last good calibration, next due (working days), working days left and flags

• Calibration Log (300 rows): as-found/as-left error and pass/fail, overall outcome, reference standard with certificate expiry check, technician and reviewer roles, OOT link check

• OOT Impact Assessment (100 rows): automatic look-back to the last good calibration, days at risk, affected results/batches, risk score, decision, linked investigation, QA approval, overdue flag

• Maintenance & Repair (200 rows): downtime, links to the recalibration and change record

• Change History (300 rows): manual audit-trail fields with completeness flags

• Lists & Settings: drop-downs, due-soon window, OOT target, risk thresholds, holidays

• User-Guide.pdf (8 pages): set-up, workflow diagram, the rule behind every automatic column, public references and disclaimer

• Five fictional EXAMPLE equipment items that trigger every flag

Who it's for

• QC and analytical laboratories in pharma, biotech, API and contract testing

• Metrology, equipment and QA staff who maintain instrument records

• Small labs and start-ups that need a structured logbook before buying a CMMS or LIMS

• Anyone who needs a documented OOT look-back process, not only a due-date list

File formats / compatibility

• .xlsx workbook. Built for Microsoft Excel 2019/365 (.xlsx, no macros). Tested in LibreOffice Calc. Google Sheets import possible but not officially supported.

• No macros, add-ins, Excel Tables, dynamic arrays or external links. Formula cells are protected without a password.

• PDF user guide (A4, 8 pages)

• Delivered as one ZIP: Rangefolio-Calibration-Equipment-Logbook.zip

FAQ

Which programs does it work in?

Built for Microsoft Excel 2019/365 (.xlsx, no macros). Tested in LibreOffice Calc. Google Sheets import possible but not officially supported. It uses long-standing functions (INDEX/MATCH, COUNTIFS, SUMPRODUCT, EDATE, WORKDAY, NETWORKDAYS) and none of the newer dynamic-array functions.

Is it 21 CFR Part 11 compliant or validated?

No. It is a template and record-keeping aid, not a validated computerised system. The Change History tab is a manual log, not an automatic audit trail. If you keep GMP records in it, control it under your own procedures (for example validate it for its intended use, restrict access, or print and sign).

How are next-due dates calculated?

The workbook takes the later of your legacy date and the last calibration whose as-left result passed, then adds the interval in months. If that date falls on a weekend or a holiday you list, it moves back to the previous working day.

Is the example data real?

No. All equipment, IDs, results and roles in the EX- rows are fictional. Delete them before first use.

Disclaimer

Template only. Not regulatory, legal or quality advice, and not a validated computerised system (not 21 CFR Part 11 / EU GMP Annex 11 compliant on its own). Not affiliated with or endorsed by USP, EMA, FDA or ICH. All example data is fictional.