Chapter 9. ADC Calibration
The ADC of each Güralp Affinity is calibrated at the factory. All measurements made are traceable to national standards and conform to the requirements of ISO/IEC 17025:2005. The calibration values are stored on the system and used to automatically scale every channel to an input sensitivity (bit-weight) of 1µV per count.
Note: This does not apply to data which are digitised externally – e.g. from a connected DM24 or CD24 digitiser.
Because of this, it is not necessary for the data consumer to re-scale the data - or even to be aware of the factory calibration results.
If desired, a calibration certificate can be generated and downloaded. To do this, select:
Tools → Calibration certificate
and click the 
button in the resulting page. This uses your browser's standard download facility to deliver a document in Open Document Text (.odt) format. Such documents can be read by Libre Office Writer, Microsoft Word and many other applications.