NEME 7, Class 1, DIV 1 and 2, Groups C and D; Class 2, DIV 1 and 2, Groups E, F, and G Explosion Proof Housing with 45UV5-1101 Scanner
Fireye Type 45UV5 scanners are self-checking, flame sensing devices. When powered by a compatible, 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, methane, 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.
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 furnaces 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 properly sighted, the scanner should discriminate between the burner being monitored and all other burners 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.
|Housing, Including Mounting Flange|
|Material||Die Cast Aluminum|
|Design||Hinged Mounting Flange, with air fitting to be permanently installed, carries two 1/4 - 20 screws which may be loosened for quick removal of the scanner housing, such as for lens cleaning.|
|Weight||3.75 lbs. (1.7kg)|
|Power Requirement||4 VA AC from associated Fireye control (see note below).|
|Frequency||Frequency of scanner must match frequency of Fireye control and power line supply|
|Connection||1/2 inch 14 NPSM tapping|
|Temperature Range||Maximum operating: 200°F (93°C) Minimum operating: -40°F (-40°C)|
|Optical Range||190 to 250 nanometers. No response to infrared radiation or visible light|
|Volume Required||4 SCFM (113 L/min. @ 4" water column above furnace pressure minimum) at 3/8 inch threaded housing inlet or 4 SCFM at 1 inch wye fitting in scanner sight pipe. Temperatures near the upper limit of the scanner operating range and/or use with dirty fuels may require up to 15 SCFM (425 L/min.)|
Mounting: Models are provided with 1" female thread mounting, either US NPT or British Whitworth according to model (see table below).
|MODEL 45UV5||FREQUENCY HZ||MOUNTING THREADS||FM||DIN||APAVE|