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Technical Data
12
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2.4 Air Purge Collar
The lens must be kept clean at all times from dust, smoke, fumes and other contaminants in order to avoid
reading errors. These effects can be reduced by using an air purge collar. Make sure to use oil-free,
technically clean air only.
The needed amount of air (approx. 20 ... 100 l/ min.) depends on the application and the
installation conditions on-site.
Protective window
Description
Spectral range
Transmission
1)
Germanium
Protective window (50.8 x 3 mm/ Ge) for TIM QVGA-G7, TIM VGA-G7
7.9 µm
0.96
Protective window (50.8 x 3 mm/ Ge) for TIM 160, TIM QVGA, TIM QVGA-HD,
TIM 640
7.5-13 µm
0.92
Zinc sulfide
Protective window (50.8 x 3 mm/ ZnS) for TIM QVGA-G7, TIM VGA-G7
7.9 µm
0.93
Protective window (50.8 x 3 mm/ ZnS) for TIM 160, TIM QVGA, TIM QVGA-HD,
TIM 640
7.5-13 µm
0.91
Protective window (50.8 x 3 mm/ ZnS) for TIM 200, TIM 230 (appropriate for VIS
+ IR)
7.5-13 µm
0.91
Protective window (50.8 x 3 mm/ ZnS) for LT models of thermoMETER CTL, CSL
serie
7.5-13 µm
0.91
Borofloat
Protective window (50.8 x 3 mm/ Borofloat 33) for TIM M-1, TIM M-05
0.85-1.1 µm, 500-540 nm
0.92
1) The displayed values are standard values and can vary between different delivery units.
