All Instruments Products come with a Factory Calibration Certificate
Traceable to the International System of Units (SI). RIGOL certifies that the product meets or exceeds published measurement specifications and has been calibrated using standards traceable to National Metrology Institutes (NIST, NIM, NPL,PTB). The policies and procedures used at the RIGOL facility are based on ISO9001 & ISO/IEC17025:2005.
Recommended Instrument Calibration Intervals are identified in the corresponding product datasheet and user manual.
RIGOL has determined that the factory calibration of our instruments are not significantly affected by storage of up to 180 days before first-time use. Cal Interval should start at the time the unit is placed in service OR 180 days past the "Date of Calibration" on the certificate received with the unit. (note: there are several exceptions to this. Please see your instrument's Calibration Certificate for the specifics of your product.)