Fluke FLK-075-CLKT C-Range IR Window 3" (75mm)

Fluke FLK-075-CLKT C-Range IR Window 3" (75mm)

Fluke Infrared (IR) Windows make it easier to comply with the NFPA 70E safety standard. Their arc-resistant crystal optics are engineered and tested to withstand the extreme pressures and temperatures of an electric arc-fault event up to 50 kA. Their unique Kwik Twist magnetic security cover further protects the viewing pane from accidental external impact, and is locked in place with a security access key. For added convenience, the Kwik Twist cover magnetically sticks to the metal panel. Even more remarkable is their AutoGround™ feature, exclusive to Fluke, that automatically grounds the Fluke IR Window upon installation, without any additional steps or testing. The AutoGround feature enhances worker safety and eliminates the need to separately ground each metal component of the window

The clear advantage for thermal imaging

Fluke offers three IR windows, all of which are UL and CSA certified. The CLKT is certified for use both outdoor and indoor. CLKTO and CLV are certified for indoor use. All models feature the exclusive Fluke ClirVu® coating that seals the entire crystal optic-including the edges-making it impervious to moisture and vibration and protecting it from the aging effects of UV exposure. ClirVu optics are insoluble and guaranteed never to degrade even when exposed to mild acids or alkalis. Of the thousands of Fluke CLKT IR Windows installed-many in very challenging environments-not one has been returned due to moisture or transmission degradation. The antistatic properties of the ClirVu coating also help repel dust and grime to keep both sides of the window clean for better IR transmission. As a result, Fluke IR Windows transmit up to 96 percent of the energy emitted, producing a more detailed image. Not only do Fluke IR Windows deliver a clearer view of the equipment being inspected, they also present a larger viewing area than other windows on the market. Since the entire area of the crystal optic is available for infrared transmission, it provides optimum repeatable results. It also provides a better view for visible light inspections.

• The Fluke FLK-075-CLKT IR Window is Engineered and tested to withstand electric-arcs up to 50 kA for 30 cycles.


• Certified by UL & CSA for Type 3/12 (Outdoor) environments in North America and Canada, the C-Range windows are tested to withstand the long term aging effects of UV exposure.


• Certified by SIRA Certification IP65 (Outdoor) environments in Europe.


• The CLIRVU® coating, exclusive to Fluke Infrared Windows, seals the optic prior to assembly to protect against moisture degradation.


• Quadraband™ optic is compatible with IR-Fusion® and Thermal Fusion technologies allowing the thermographer to see potential problems in visual light and thermographic mode.


• Got more than one window per panel? Each C-Range window is delivered with an identification plate attached for unique, on-site numbering for rapid location confirmation and faster repairs.


• Fluke AutoGround automatically grounds at installation for maximum safety and compliance. No additional steps or testing is required. Only available on Fluke IR Windows.