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Innovative High Temperature Fiber Optic Infrared Pyrometers
Accessories
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9.2. Accessories for Fiber Optic Sensors only
A full range of accessories for various applications and industrial environments are available.
Accessories include items that may be ordered at any time and added on-site. These include
the following:
Figure 54: Accessories (Selection)
9.3. Air Purge Collar
The Air Purge Collar accessory is used to keep dust, moisture, airborne particles, and vapors
away from the optical head's lens. It can be installed before or after the bracket. It must be
screwed in fully. Air flows into the 1/8” NPT fitting and out the front aperture. Air flow should
be a maximum of 0.5 - 1.5 liters/sec (1 -
3 cfm). Clean (filtered) or “instrument” air is
recommended to avoid contaminants from settling on the lens. Do not use chilled air below
10°C (50°F). Also provided is a stainless steel protection tube, 150 mm (6 inches) long by 25
mm (1 inch) diameter that threads onto the front of the air purge collar.
Figure 55: Air Purge Collar and Protection Tube (E-FOHAPA)
9.4. Protection Tube
The protection tube is available as an accessory. It is 305 mm (12 in.) long and 32 mm (1.26
in.) in diameter and comes with ¾” NPT external thread at one end. The ptical head is
threaded with the protection tube. The use of the air purge collar in the same time is possible.
Air purge collar
Optical head
Adjustable mounting bracket
2 x Mounting nuts
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