Frequently Asked Questions about Calibration
Calibration – how frequent?
Q: Why should I needto calibrate a new instrument coming directly from the factory?
A: If it’s a legal requirement, or if you need to follow the instrument's changes, you should track it from initial calibration.
Q: When should I re-calibrate my instrument?
A: We recommend that you start the history from day one and re-calibrate once a year. Then you can compare measurement results over time.
Q: Is it sufficient to send in my instruments for calibration every 2nd year?
A: Do you want to risk two years' worth of measurement results being unreliable? You would not be able to track down ththe time the difference occurred, so we recommend annual calibration for electrical instruments.
Q: Our instruments are used in our internal R&D department only, and there are no public or quality standards we have to follow. Why should we calibrate?
A: If you need to compare measurement results, we recommend that you have calibration with a certificate containing measured values.
Types of calibration
Q: Why should I choose accredited calibration, isn’t traceable enough?
A: If you or your customer want to use the measurement results in public or fulfil requirements in quality processes, you must have accredited calibration.
Q: What is the difference between accredited and traceable calibration?
A: Brüel & Kjær provides accredited calibration which is approved by accredited authorities.
Traceable calibration is tested according to the same standards, and secures that calibration results are correct, but not approved by the authorities.
Q: Is it sufficient to use a calibrator?
A: A calibrator is used to verify the instrument just before and after the field measurement.
This is no replacement for periodic calibration in the laboratory.
Q: What is required for a calibration laboratory in order to achieve accreditation?
A: A quality policy fulfilling requirements in ISO 17025 including physical premises, the methodology, procedures, traceability, technical skills and record documents.
Calibration Certificates
Q: What does an accredited certificate from Brüel & Kjær contain?
A: With Brüel & Kjær you get a certificate with measurement values and uncertainty budget according to ISO 17025.
Q: Can I use a DANAK certificate in other countries?
A: Yes, through mutual recognition with other accreditation bodies, DANAK is accepted on the same level as the national accreditation. DANAK is a member of the organisation European Cooperation for Accreditation (EA) and International Laboratory Accreditation Cooperation (ILAC).
Q: Can I compare an older certificate from another laboratory with a new one from Brüel & Kjær?
A: Yes
Q: How can I get a copy of a previous calibration certificate?
A: Please contact your local Brüel & Kjær representative with tyour instrument's type and serial number.
Request pricing and service jobs
Q: How can I find the price for a specific calibration?
A: Please contact your local Brüel & Kjær representative
Q: How do I order calibration?
A: Please fill in the service request form
Q: How do I know that you have received the instrument I sent, and how can I follow its progress?
A: You will receive an e-mail when the instrument arrivesat Brüel & Kjær and a link to a web page to track its progress. Please ask your local Brüel & Kjær representative if this is currently available in your country.
Service
