4
INTEGRAL CABLE SPECIFICATION:
Individual Conductors
Four (4) Conductors: #18 AWG (16x30) strand tinned copper
Diameter: 0.110" Nominal O.D.
Colors: Green, White, Black and Red (Red not used)
Two (2) Conductors: #22 AWG (7x30) strand tinned copper
Diameter: 0.093" Nominal O.D.
Colors: Blue and Yellow
Insulation Material: EXAR 150A .074" nominal O.D.
Cable:
Jacket Material: EXAR 150A .074" pressure extruded
Wall Thickness: .045" NOM.
Finished Diameter: .418" NOM.
Temperature: -40°F (-40°C) to 257°F (125°C)
Table 1:
Specifications subject to change without notice.
IMPORTANT NOTE: The AC power source must be sinusoidal for proper scanner operation.
The application of any waveform other than a sine wave (e.g. square wave) will damage the
55UV5 scanner.
PURGE AIR
Source: Clean ambient
Volume: 4 SCFM (113 L/min. @ 4" water column above furnace pressure minimum) at
3/4 inch threaded housing inlet or 4 SCFM at 1 inch wye fitting on scanner sight
pipe. Temperature near the upper limit of the scanner operating range and/or use
with dirty fuels may require up to 15 SCFM (425 L/min.).
INSTALLATION
1. The best scanner sighting results are obtained when the scanner is aimed so that the scanner
(viewing) center line intersects the burner center line at a slight angle, as shown in Figure 2. The
area of maximum ultraviolet radiation is near the base of the flame envelope. If only one scanner
is used per burner, the intersection should be made so the line of sight or viewing angle can also
see the igniter flame. Consideration must be given to burner air rotation (burners have clockwise
or counterclockwise air rotation). Figure 3 illustrates how scanner location is influenced by the
igniter position and air circulation. Physical obstructions such as air register blades should not
fall within the scanner’s line of sight.
MODEL
55UV5
FREQUENCY
HZ
MOUNTING
THREADS
FM
1010
60 BSP YES
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