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This bulletin is directed to the licensed boiler service technicians and professional combustion
engineers who are experienced in the installation and operation of Fireye flame safeguard
controls. Persons not experienced with Fireye flame safety products should contact the nearest
Fireye representative, or a qualified service group for assistance. IMPROPER INSTALLA-
TION OF THESE PRODUCTS MAY BE HAZARDOUS TO LIFE AND PROPERTY.
DESCRIPTION
Fireye Type 45UV5 scanners are self-checking, flame sensing devices. When powered by a compat-
ible, self-checking Fireye control, the scanners detect the presence or absence of flames which emit
ultraviolet radiation (UV). Typical fossil fuels which emit UV include natural gas, propane, meth-
ane, butane, kerosene, light petroleum distillates and diesel fuels. For burners firing steam-atomized
oil or pulverized coal, Fireye recommends the use of infrared (IR) scanners. Fireye offers a complete
line of infrared scanners best suited for these applications.
APPLICATION
When used with a Fireye amplifier, the 45UV5 scanner provides flame failure protection on single
and multi-burner industrial applications such as electric utility boilers, power boilers and large fur-
naces or incinerators. The 45UV5 scanner monitors the flame(s) of only one burner. The pilot and
main flames may be monitored individually (2 scanners) or in combination (1 scanner). When prop-
erly sighted, the scanner should discriminate between the burner being monitored and all other burn-
ers and any background flames.
Note: Scanner response is dependent on burner configuration as well as the turbulence and spectral
characteristics of the flames. Application assistance is available on request.
CU-22
MARCH 28, 2013
45UV5 SCANNER
MODELS:
1000, 1010,
1101, 1103
(including EX and CEX Models)
APPROVED
