Closed-door infrared inspections of electrical panels are possible with Mikron Infrared''s UL-approved Viewport. Matched with Mikron''s SpyGlass™ fisheye lens, it allows an inspector to scan a panel by looking through a single port''s tiny 0.62 in. opening.
Designed to make frequent inspections more convenient, the Viewport enables a thermographer to work without the help of an electrician or safety barricading, and with minimal personal protective equipment. The Viewport is also suitable for use with ultrasound detection equipment.
Thermal scans through the Viewport are highly accurate, because the unique open design needs no IR-transparent window or metal screen that can skew readings by the IR camera. When used with the plastic-tipped SpyGlass lens, there is no "path to ground" through the camera, enhancing operator safety. The Viewport is unaffected by moisture, dirt, UV, or corrosive environments that can destroy IR windows.
UL-approved for installation on NEMA type 1, 2, 3, 3R, 4, 5, 12, 12K, and 13 enclosures, the Viewport is ideal for OEM use or retrofit in the field. Installation requires 20 minutes or less.
Three styles are available, with a list price starting under $50. The standard Viewport model is closed with a protective O-ring-sealed, screw-on cap when not in use. Other models include a locking device or a window with a locking device.
The SpyGlass fisheye lens, with its wide field of view (53 deg horizontal by 40 deg vertical, or 66 deg diagonal), allows easy scanning of the interior of the electrical cabinet through the Viewport, providing a temperature measurement accuracy of ±3°C. With a focus range of 4 in. to infinity and a large depth of field, the SpyGlass lens reduces the need to refocus for different electrical cabinet depths.