CLKT C-Range Infrared Window Technical Data Increase the safety and speed of electrical thermography If you are concerned about arc-flash but wish to continue with your infrared thermography program, Fluke infrared windows are the answer. These arc-resistant, outdoor certified, infrared windows allow thermal, ultraviolet, visual and fusion technologies to be used without exposing personnel to live equipment. * 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(R) coating--exclusive to Fluke Windows--seals the optic prior to assembly to protect against moisture degradation. * 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. * Each infrared window comes complete with a security access key, installation instructions and self-adhesive drilling template. Grounds instantly Grounds instantly to metal enclosure with patent-pending AutoGroundTM process. No additional steps or testing is required. Only available on Fluke IR Windows. Detailed specifications 3460346 FLK-050-CLKT 3460387 FLK-075-CLKT 3460439 FLK-100-CLKT 50 mm (1.97 in) 75 mm (2.96 in) 100 mm (3.94 in) 43 mm (1.7 in) 68 mm (2.7 in) 89 mm (3.5 in) 1452 mm (2.25 sq in) 3632 mm (5.63 sq in) 6322 mm2 (9.79 sq in) 2 mm (0.08 in) 2 mm (0.08 in) 4 mm (0.16 in) Optic data Crystal insert diameter Viewing aperture diameter Viewing aperture area Thickness 2 2 CLIRVU coating Yes Shortwave IR capable Yes Midwave IR capable Yes Longwave IR capable Yes Ultraviolet (UV) capable Yes Visual capable Yes Fusion capable Yes Why is available area important? Understanding the difference between "Optic Diameter" and "Available Area" gives the thermographer a measure of how much infrared energy is passing through the window. The more energy, the better the reading. The entire area of a crystal IR Window is available for infrared transmission for optimum repeatable results. Mesh grids may have a larger "optic diameter" but the grid itself blocks the IR signal. The amount of radiation available to the camera via mesh windows is significantly reduced and the signal may be irregular. Underwriters Laboratories (UL) recognized Yes UL50 environmental Type 3/12 UL746C N/A (Polymer Free) UL94 N/A (Polymer Free) Canadian Standards Association (CSA) approval Yes Environmental Type 3/12 KEMA (Arc-Testing) ANSI C37.20.7 50 kA for 30 cycles @60 Hz EEMACS 14-1 Type-B 40 kA for 30 cycles @60 Hz ASTA (Arc-Testing) IEC 62271 20 kA for 5 cycles @50 Hz TUV Cyclic humidity withstand Yes Vibration withstand Yes NEMKO Resistance of insulating materials to 100 Yes Resistance of insulating material to ball pressure (Brinell) Yes Glow-wire test 650 C Yes Lloyds Register Up to 11 kV marine switchgear, indoor or outdoor 2 Fluke Corporation CLKT C-Range Infrared Window Yes General specifications Maximum temperature Gaskets: 250 C (482 F) Body: 659 C (1219 F) Optic: 1400 C (2552 F) Gaskets Low smoke and fume (LSF) compliant silicone IP rating IP65 NEMA rating Type 3/12 (UL and CSA Third Party Certified) Vibration rating IEC60068-2-6 Humidity rating IEC60068-2-3 Pull-out strength Up to 630 kg (1388 lb) Warranty Lifetime replacement against manufacturing defects Ordering information Crystal insert size 50 mm (2 in) 75 mm (3 in) 100 mm (4 in) 3460346 FLK-050-CLKT 3460387 FLK-075-CLKT 3460439 FLK-100-CLKT Included with product IR Windows are supplied complete, assembled and ready for installation. In addition to the IR Window each carton contains a self-adhesive drilling template, security access key and warranty statement. Basic Field of View (FOV) calculation, F= 6xD Fluke Corporation PO Box 9090, Everett, WA 98206 U.S.A. Fluke Europe B.V. PO Box 1186, 5602 BD Eindhoven, The Netherlands For more information call: In the U.S.A. (800) 443-5853 or Fax (425) 446-5116 In Europe/M-East/Africa +31 (0) 40 2675 200 or Fax +31 (0) 40 2675 222 In Canada (800)-36-FLUKE or Fax (905) 890-6866 From other countries +1 (425) 446-5500 or Fax +1 (425) 446-5116 Web access: http://www.fluke.com (c)2009-2014 Fluke Corporation. Specifications subject to change without notice. Printed in U.S.A. 10/2014 3504172F_EN Modification of this document is not permitted without written permission from Fluke Corporation. 3 Fluke Corporation CLKT C-Range Infrared Window Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Fluke: FLK-100-CLKT