contact Exergen Corp @ 1.800.422.3006 (Newton, MA) They have an excellent tech service group and very informative literature about emissivity and it's affect on temperature measurment. ______________________________ Reply Separator _________________________________ Subject: FAB: Emissivity Author: [log in to unmask] at corp Date: 9/17/96 3:42 PM Address, We have recently been measuring the exit temperatures of our layers and panels using a IR Temperature Probe. These temps were in line with current specifications. We verified the exit temperatures with the built-in thermocoupler and a temperature probe. However, one of our local sources allowed us to use their IR Temp Probe that took into consideration the Emissivity of the material measured, in this case, the rubber lam rollers. The exit temp was then 25~30 degrees higher than our initial testing. How critical is the emissivity and can it be a factor here? Does anyone else rely on emissivity to read their exit temps? The recommended emissivity is .86 (20~30 degrees out of spec) but when using 1.0, the required temp was achieved. Please advise. John Gulley Compuroute Inc. *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************