A simple way to check the transmission rate of any infrared window is the “coffee cup test.” Use this test before your initial installation and during regular IR window maintenance for windows with materials that are known to degrade over time.
We are giving away a FLUKE VT02 Visual IR Thermometer, The VT02 is the original visual IR thermometer that includes a digital camera with a thermal heat map overlay, hot and cold markers, and the ability to document your work and create reports. View our contest page to view current offers, and upcoming offers.
Drawing to be concluded September 30th 2015.
As thermographers, we have always strived to produce the most accurate results using our thermal imagers and our spot radiometers. Those of us that have had formal training consider many different issues when performing qualitative (temperature measurement) or quantitative (thermal patterns) inspections:
We are giving away a FLIR C2 thermal camera, the slim, light profile fits comfortably in any work pocket so you can always keep your C2 at your side and never miss an opportunity to uncover invisible building issues, show them to customers, and offer helpful solutions. View our contest page to view current offers, and upcoming offers.
Drawing to be concluded July 4th 2015.
What is Emissivity?
The material emissivity (written as “?” or “e”) is the relative power of its surface to emit heat by radiation. Materials are assigned an emissivity value between 0 and 1.0. Emissivity is a measure of a material’s ability to emit infrared energy. The emissivity of a surface is the ratio of the energy radiated from it to that from a blackbody at the same temperature, the same wavelength and under the same viewing conditions.
There exists a dangerous misconception regarding the “Arc Rating” of infrared (IR) windows or viewing panes. Many reliability and maintenance professionals are under the impression that an IR window will protect them in the event of an arc blast; still others are under the impression that installing IR windows will turn non-arc-rated switchgear or electrical equipment into “arc-rated” cabinets. Neither is the case, and both misconceptions need to be corrected because they present very real safety concerns.