Brannan Calibration Services 2025 - Flipbook - Page 18
sales@brannan.co.uk
+44 (0)1946 816600
Frequently asked questions
brannan.co.uk
What is a calibration?
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A calibration is a procedure in which an instrument is tested to make sure it conforms to a recognised standard and
is used to verify the accuracy of an instrument.
It is the process of checking, by comparison with a standard, the accuracy of a measuring instrument and provides
accurate corrections which can be applied to the readings obtained in use.
Why should I calibrate my instrument?
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By comparing an instrument of a known value against a second instrument (unit under test), the di昀昀erence can be
calculated and suitable corrections determined.
A calibration provides the user with con昀椀dence that the instrument they are using works correctly.
Without periodic calibration, an instrument can drift out of the manufactures speci昀椀cation unrecognised and lead to
incorrect test results.
What instruments are you able to calibrate?
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We are able to calibrate the vast majority of products we
sell, as well as calibrating your own instrument. The table
shows all instruments we are able to calibrate.
If you have any doubt about whether or not your
instrument is suitable for calibration, please contact our
sales team on 01946 816600 or sales@brannan.co.uk.
Instrument type
Traceable
UKAS
Accredited to national
standards
Liquid-in-glass thermometers
Pressure
Dial thermometers
Electronic thermometers with indicators
Infrared thermometers
Measurements of temperature in air
Hydrometers
Electronic environmental meters
Timers & stopwatches
4
4
4
4
6
6
4**
6
4**
6*
4
4
4
4**
4
4
4**
6
* See THERM-certTM range for traceable calibration of liquid-in-glass thermometers.
**Calibration carried out at external facilities
I want to buy a new product with calibration certi昀椀cate, what range of instrument should
I buy?
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When buying a new instrument, the point of interest should be between the centre and the ¾ mark of the scale.
If for example a pressure gauge is required to measure a line pressure of 10 bar, a 0-10 bar gauge will be able to
make the measurement, but a 0-16 bar gauge will give arguably more accurate readings and will be less likely to
su昀昀er from small pressure spikes and over pressure issues.
What is the di昀昀erence between a UKAS calibration and a traceable calibration
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UKAS (United Kingdom Accreditation Service) is the sole body recognised by HM Government for assessing
and accrediting the competence of calibration and testing laboratories to (BS) EN ISO/IEC 17025 – ‘General
requirements for the competence of testing and calibration laboratories’.
- We have been accredited by UKAS to perform calibrations relating to temperature and pressure instruments.
- Our calibration lab has been assessed against internationally recognised standards to demonstrate our
competence, quality, and performance capability.
Traceable calibrations are conducted according to similar standards, which ensure the calibration results are correct;
however an o昀케cial governing body such as UKAS does not approve the results and uncertainties are not stated.
All our Traceable Calibrations are traceable to national standards and the calibration process is carried out following
documented procedures.
Measurement for life.
