Charles A Mclean

US Patent:

20170205286, Jul 20, 2017

Filed:

Jan 20, 2016

Appl. No.:

15/001372

Inventors:

- Wilson NC, US
Ken Bell - Raleigh NC, US
Terry Simpson - Wake Forest NC, US
Christopher Wilson - New Haven VT, US
David Frasure - Wilson NC, US
Charles B. McLean - Wilson NC, US
Clinton E. Piland - Raleigh NC, US

International Classification:

G01J 3/02
G01J 3/10
H05B 33/08
G01J 3/50

Abstract:

A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.