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3.2 Air Purge Collars
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.
Standard air purge collar [ACCTAP] for optics with a
D:S ≥ 10:1 (not for sensing heads with 32 mm length),
fits to the mounting bracket
Hose connection: 3x5 mm
Thread (fitting): M5
Standard air purge collar [ACCTAP2] for optics with a
D:S ≤ 2:1 (not for sensing heads with 32 mm length),
fits to the mounting bracket
Hose connection: 3x5 mm
Thread (fitting): M5
The needed amount of air (approx. 2...10 l/ min.) depends on the
application and the installation conditions on-site.
w ww . . co m
information@itm.com1.800.561.8187
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