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Why is Emissivity so important?

Posted by Martin Robinson on 12/1/15 9:56 AM

A typical plant is full of equipment that requires periodic infrared (IR) inspection. The challenge, as any thermographer knows, is getting an accurate indication of equipment health. Properly compensating for the various emissivity values of all the components one encounters on the factory floor is possibly the most critical factor in performing accurate and meaningful inspections. Even slight errors in emissivity compensation can lead to significant errors in temperature and Delta T (difference in temperature) calculations. Electrical cabinets are a good example, as they may contain materials with emissivity values ranging from 0.07 to 0.95.

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Topics: Electrical Maintenance, Infrared Windows, Thermography, Electrical Inspection, Energized Electrical Maintenance, Emissivity, IR-ID Labels

Sign up for the FLUKE VT02 Giveaway!

Posted by Tyler McDonald on 11/4/15 10:00 AM

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.

The drawing has been concluded as of December 14th 2015.

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Topics: Electrical Maintenance, Thermography, Electrical Inspection, Energized Electrical Maintenance, Emissivity, Giveaway

The Coffee Cup Test

Posted by Martin Robinson on 9/24/15 10:30 AM

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.

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Topics: Education, Thermography, Training, Emissivity, IR Cameras, IR-ID Labels

Last Chance to sign up for the FLUKE VT02 Giveaway!

Posted by Tyler McDonald on 9/22/15 10:30 AM

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.

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Topics: Education, Electrical Maintenance, Thermography, Electrical Inspection, Energized Electrical Maintenance, Emissivity

Special Offers and Giveaways!

Posted by Martin Robinson on 6/3/15 2:04 PM

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.

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Topics: Education, Electrical Maintenance, Thermography, Electrical Inspection, Energized Electrical Maintenance, Emissivity

Know Your Emissivity

Posted by Martin Robinson on 4/15/15 11:28 AM

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.

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Topics: Education, Electrical Maintenance, Thermography, Electrical Inspection, Energized Electrical Maintenance, Emissivity

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