IEC 60904-9:2020 © IEC 2020
– 19 –
Class A+: Spatial non-uniformity of irradiance
≤
1 %, as specified in Table 3. This
classification can be only assigned if spectral match
evaluation is performed
according to Table 2.
Class A: Spatial non-uniformity of irradiance >1 % and
≤
2 %, as specified in Table 3.
Class B: Spatial non-uniformity of irradiance >2 % and
≤
5 %, as specified in Table 3.
Class C: Spatial non-uniformity of irradiance >5 % and
≤
10 %, as specified in Table 3.
5.3.4
Uncertainty of non-uniformity measurement
Measurement uncertainty shall be stated.
5.4 Temporal instability of irradiance
Dostları ilə paylaş: