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Outdoor weather test get temperature control.


A novel temperature-controlled test methodology has been developed by Chicago-based Atlas Atlas, in Greek mythology
Atlas (ăt`ləs), in Greek mythology, a Titan; son of Iapetus and Clymene and the brother of Prometheus.
 Weathering Services Group for use with its Emmaqua outdoor accelerated test devices. The new approach allows the sample temperature to be maintained constant despite variations in ambient Surrounding. For example, ambient temperature and humidity are atmospheric conditions that exist at the moment. See ambient lighting.  daytime temperature and solar radiation solar radiation,
n the emission and diffusion of actinic rays from the sun. Overexposure may result in sunburn, keratosis, skin cancer, or lesions associated with photosensitivity.
 intensity. The new patented temperature-control system has been installed in the company's existing Emmaqua testing units. A temperature sensor mounted on the target board interfaces with a controller that controls the blower motor used to circulate cir·cu·late  
v. cir·cu·lat·ed, cir·cu·lat·ing, cir·cu·lates

v.intr.
1. To move in or flow through a circle or circuit: blood circulating through the body.

2.
 ambient cooling air across the test specimens. The black-panel temperature setpoint can be maintained between 158 and 266 F. Tel: (623) 456-7356, www.atlaswsg.com
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No portion of this article can be reproduced without the express written permission from the copyright holder.
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Publication:Plastics Technology
Date:Dec 1, 2003
Words:104
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