90° diffusor
alternatively with filter
The standard diffusor of specbos 1211-2, spectraval 1501 and spectraval 1511 allows Irradiance measurements in axis to the device. There exist applications where this restricted set up cannot be used, e.g. if it is necessary to measure the Irradiance near a certain surface. The 90° diffusor allows to measure perpendicular to the instrument.
It is available in different versions for specbos 1211-2 and specbos 1211-UV-2 as well.
90° diffusor: f2 < 3% (class B)
|
Filter type |
Measuring range Illuminance (Illuminant A) |
Part number for specbos 1211-2 |
Part number for specbos 1211-UV-2 |
|
without |
3 ... 1 500 000 lx |
ACC 012 |
ACC 012UV |
|
OD1.0 |
30 ... 15 000 000 lx |
ACC 012 OD1.0 |
ACC 012UV OD1.0 |
|
OD2.0* |
300 ... 150 000 000 lx |
ACC 012 OD2.0 |
ACC 012UV OD2.0 |
*Other neutral density filters on request
| Filter type | Measuring range Illuminance (Illuminant A) | Part number for spectraval 1501 | Part number for spectraval 1501-NIR |
| without | 3 ... 800 000 lx | ACC 032/90° | ACC 032/90° NIR |
| OD1.0 | 30 ... 8 000 000 lx | ACC 032/90° OD1.0 | ACC 032/90° OD1.0 NIR |
| OD2.0* | 300 ... 50 000 000 lx | ACC 032/90° OD2.0 | ACC 032/90° OD2.0 NIR |
* Other neutral density filters on request
