From the customer's instrument to the certificate
Every job follows the same path, so nothing depends on which engineer picked it up.
- Inward. The customer, and each instrument with its make, model, serial number, range and resolution, and the points to calibrate. The customer gets a receipt with the job number.
- Worksheet. The engineer picks the master standard, records the room conditions and types the readings at each point.
- Calculation. Mean, error or correction, and the measurement uncertainty are worked out from the readings, the same way every time.
- Review. The Technical Manager checks the results and the Authorised Signatory approves them. After that the results are locked.
- Certificate. It is printed in your format, with the ULR and NABL symbol on your accredited scope and a due date only when the customer asks for one.
Measurement uncertainty, worked out the same way every time
In most calibration labs, uncertainty lives in Excel sheets that get copied from job to job. One changed cell and every certificate after it is wrong, and nobody notices until an assessor asks.
In Tanush LIMS, the uncertainty budget your lab has validated is set up once for each calibration. It covers repeatability, the master standard's certificate, resolution and the other contributions your method lists. Each job then works out the combined and expanded uncertainty from its own readings, and the coverage factor prints on the certificate. Engineers type readings, not formulas.
Master standards that can't be used past their due date
Your reference standards sit in the equipment register with their calibration history and due dates. Anything overdue or coming due is flagged. On the worksheet an overdue master is greyed out, and results can't be recorded against it. A certificate is never traced to a master that was out of calibration on the day.
Recall reminders for your customers' instruments
When a customer asks for a due date, it goes into a recall list. You can see which customers' instruments fall due next month and call them first. That repeat work is easy to lose when the dates sit in old certificates and Excel files.
Set up for your disciplines and scope
Electro-technical, mechanical, thermal, pressure, mass, dimension or fluid flow: during setup we build the worksheets, uncertainty budgets and certificate layouts for the parameters in your NABL scope. Anything else your lab needs is built for you too, and setup, training and support come straight from Tanush Digital.
If your lab also tests samples, the same Tanush LIMS covers that work, with NABL-format test reports and Indian standards built in.
Further reading
- NABL calibration certificate format: what it must containNABL calibration certificate format: ISO 17025 clause 7.8.4 contents, the June 2026 ULR and NABLC number, uncertainty at k = 2, NABL symbol and due dates.