Sonel CMM-11, User Manual

Page: 66 / 100

CMM-11
– USER MANUAL
64

standards of electrical properties:
o
calibrators,
o
resistance standards,

instruments for the measurements of non-electrical:
o
pyrometers,
o
thermo-imaging cameras.
o
lux meters.
The Calibration Certificate is a document specifying the relation-
ship between the standard and the instrument's indication with indi-
cation of measurement uncertainty.
According to ILAC-
G24:2007 „Guidelines for the determination of
calibration intervals of measuring instruments”, SONEL S.A. rec-
ommends periodical metrological inspection of the instruments it
manufactures no less frequently than once every
13 months.
For new instruments provided with the Calibration Certificate or Val-
idation Certificate at the factory, re-calibration should be performed
within
13 months from the date of purchase, however, no later than
25 months from the date of purchase.
ATTENTION !
The person performing the measurements should be absolute-
ly sure about the efficiency of the device being used. Meas-
urements made with an inefficient meter can contribute to an
incorrect assessment of the effectiveness of health protection
and even human life.
Measurements carried out in an accredited calibration labora-
tory (with competences confirmed by PCA), it is certain that
they were made in accordance with applicable standards, pro-
cedures, including the best reliability.