Eclipse 5600-91 Instruction Manual
854 Instruction Manual
C
US
10/11/2010
UV Scanner
Model 5600-91
Introduction
This sensor features a high temperature and high
sensitivity ultraviolet (UV) tube for monitoring gas or oil
flames in applications that cycle on and off frequently. The
scanner is UL listed for USA and Canada, and FM
approved when used with Eclipse model 5600 and VF56
series Veri-Flame, model 6000 Multi-Flame, model 6500
Bi-Flame, or series 7000 Peek-A-Flame. This product is
also in conformance with the "CE Mark" Directives when
used with the model VF56 Veri-Flame CE as listed in its
Instruction Manual 818-2. It comes with a 6 ft flexible
metal cable and an insulated coupling.
The UV tube is made of quartz and is filled with a gas that
surrounds two electrodes. These electrodes are
energized continuously by a high voltage. The gas acts as
an insulator in the absence of UV radiation. Combustion
produces UV radiation to ionize the gas and causes
current pulses to flow between the electrodes. These
current pulses result in a flame signal which is transmitted
to the amplifier in the control, where it is processed to
energize and hold in the flame relay.
Specifications
Parameter Specification
Part Number 49600-91
Spectral
Response
Supply
Voltag e
Supply
Current
Wiring 6 foot (183 cm) flexible 3/8" metal conduit
Temperature
Range
Materials Housing: Aluminum
Shipping
Weight
Options Magnifying lens (Part #49600-98)
185 to 260 nm
495 ± 55VDC
0.3 mA
with two #18 AWG conductors
0° to +257°F (-20° to 125°C)
Conduit: Plated Steel
Insulated Coupling: PBT Polyester, Glass
Reinforced
13 oz. (360 grams)
Heat Block Seal 23HBS (Part #400011)
Sensor Installation
CAUTION
CAUTION
■ Incorrect sensor installation may cause the sensor
to generate a false flame signal. This can cause
unburned fuel to collect in the combustion
chamber, resulting in explosions, injuries, and
property damage. Be certain that the flame sensor
detects only the pilot and/or main flame of the
intended burner by testing the control system
under varying operating conditions and firing
rates. Follow the test procedures given in this
manual and the equipment provider’s instructions
after installation and at regularly scheduled
maintenance intervals.
Sensor Wiring
Veri-Flame
Blue
S1
S2
Yellow
Multi-Flame
Blue
3
2
Yellow
4
Blue
9
8
Yellow
10
Scanner
Conduit
Scanner
Conduit
Scanner
Conduit
Peek-A-Flame
Blue
7
8
Yellow
2
Bi-Flame
Blue
J4
3
2
Yellow
4
Blue
J5
1
2
Yellow
4
Scanner
Conduit
Scanner
Conduit
Scanner
Conduit
Route sensor wiring a sufficient distance from ignition and
other high voltage wiring to avoid electrical interference.
Some areas may have high levels of electromagnetic
fields or ground currents that require the use of special
cables, isolation and grounding methods. Figure 1
illustrates the sensor wiring to appropriate Eclipse
controls. The blue wire supplies power and carries the
flame signal, the yellow wire connects to circuit common,
and the flexible metal conduit must be connected to earth
grounding.
If sensor wiring is to extend beyond the supplied 6 foot
(183 cm) length, use #14 to #18 AWG wire suitable for at
least 167°F (75°C) and 600 volt insulation.
If each scanner has its own dedicated conduit, unshielded
wiring may be used for wiring runs less than 20 feet (6 m)
and that have at least one foot of separation from ignition
and other high voltage conductors. For wiring runs greater
than 20 feet (6 m) use two-conductor shielded cable (such
as Belden #8719 or #9342, or for extreme temperatures
#83322E). For multiple burner installations, shielded
cables can be run in a common conduit. Use isolated
shielded pairs to avoid the possibility of interference
(cross-talk) between wiring of multiple scanners. The
success of wiring runs of 150 feet (45 m) or more is
dependent upon site conditions; therefore the equipment
layout should be redesigned to allow the control to be
mounted closer to the burner. For these longer wiring
runs, it may be necessary to use a pair of RG62A/U coax
cables (Eclipse #21741) per scanner, with the shielding
insulated and not grounded.
Figure 1.
One-Third of
Main
Flame Length
Burner
Scanner
Sight Line
Figure 2.
Sensor Installation
In most cases, the location for this scanner will be predetermined by the burner manufacturer. However, proper
application of this scanner requires knowledge of the
burner, the combustion chamber, and the process.
Opposing burners, flame swirl patterns, and substance in
the line-of-sight may require special mounting techniques.
■ The UV tube is fragile. Handle carefully and avoid
dropping or sharp blows.
Consult the burner manufacturer’s instructions for
mounting location. The scanner should view the
intersection of the pilot and main flames. It typically should
be aimed at the first third of the flame closest to the burner
nozzle, see Figure 2. Certain unburned hydrocarbons, oil
mist, recirculated flue gas or other contaminants may
mask and absorb the ultraviolet radiation.
2
Eclipse UV Scanner, V1, Instruction Manual 854, 10/11/2010
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