MPI-506 – USER MANUAL
13 Laboratory services
SONEL Testing and Calibration Laboratory has been accredited by the
Polish Center for Accreditation (PCA) - certificate no. AP 173.
Laboratory offers calibration for the following instruments that are used
for measuring electrical and non-electrical parameters.
● METERS FOR MEASUREMENTS OF ELECTRICAL PARAMETERS
o voltage meters,
o current meters (including clamp meters),
o resistance meters,
o insulation resistance meters,
o earth resistance and resistivity meters,
o RCD meters,
o short-circuit loop impedance meters,
o power quality analyzers,
o portable appliance testers (PAT),
o power meters,
o multimeters,
o multifunction meters covering the functions of the above-mentioned instruments,
● ELECTRICAL STANDARDS
o calibrators,
o resistance standards,
● METERS FOR MEASUREMENTS OF NON-ELECTRICAL PARAMETERS
o pyrometers,
o thermal imagers,
o luxmeters.
The Calibration Certificate is a document that presents a relation between the calibration standard of
known accuracy and meter indications with associated measurement uncertainties. The calibration
standards are normally traceable to the national standard held by the National Metrological Institute.
According to ILAC-G24 „Guidelines for determination of calibration intervals of measuring instru-
ments”, SONEL S.A. recommends periodical metrological inspection of the instruments it manufac-
tures no less frequently than once every 12 months.
For new instruments provided with the Calibration Certificate or Validation Certificate at the factory,
re-calibration should be performed within 12 months from the date of purchase, however, no later than
24 months from the date of purchase.
ATTENTION !
The person performing the measurements should be absolutely sure about the effi-
ciency of the device being used. Measurements made with an inefficient meter can
contribute to an incorrect assessment of the effectiveness of health protection and
even human life.
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