Equipment logbook and calibration history: a setup plan

Walk the plant with a clipboard. Write down every tablet press, granulator, fluid bed dryer, coating pan, blister machine and balance. Then add the instruments that serve them: pressure gauges, temperature sensors, hardness testers and dissolution baths.

Give each item one permanent ID. Tag it. Never reuse an ID when a machine is scrapped. Record the room, make, serial number and the qualification date.

This list is the spine of everything else, because every later record hangs from an asset ID and every report counts assets. A machine missing from it will keep a paper logbook forever. Skip nothing, not even the humble balance.

A logbook is a stream of events against one machine. Each event has a date, a type, a person and often a batch. Four types cover most of the work: usage, cleaning, calibration and breakdown. Over a year this record answers questions that otherwise take days, such as which batches ran on a press before its last failed calibration check.

Usage events link to a batch number and a product, so you can later tell which batches ran on which press. Cleaning events carry the cleaning level, the agent used and the verifier.

Calibration events hold the instrument, the standard used, the as-found and as-left readings, the certificate reference and the next due date. Breakdown events hold the fault, the repair, the downtime and who released the machine back to production.

Do not retype ten years of paper. Load the current state of every asset, meaning the last calibration and the next due date, and then backfill only the period an inspector is likely to ask about.

Scan older logbooks and attach them to the asset record as files. They stay findable by asset ID, even when single entries are not searchable.

Keep the paper books in the archive and note their shelf in the record. A clean scan with a clear index beats a half typed history full of mistakes. An inspector who asks for the coating pan history from two years back should see it within a minute, without a trip to the archive.

Each asset gets a calibration interval and a cleaning rule, and the system turns these into due dates. A press with an overdue calibration should show red. The batch screen should warn before that press is chosen.

Decide who can mark a machine out of service and who can release it. Put those names in the setup. Not in someone’s head. Not on a sticky note either.

Build one board for the engineering head listing assets due this month, overdue assets, machines currently down and repairs still open. Review it every Monday morning with the shift leads.

Pilot on one line, such as compression and coating. Run the paper logbook and the new record side by side for two weeks, then retire the paper for that line.

Train operators on the three entries they make daily: start of use, end of use and cleaning. Train engineers on calibration and breakdown entries. Keep entries brief. Pick lists help. Free text slows the line.

Then move to the next line. After the last line, audit your own work by picking five machines and tracing their history from the record alone.