®

CU-104

MARCH 28, 2013

65UV5 Simplicity

Integrated Flame Scanner with Internal Flame Relay

DESCRIPTION

The Fireye 65UV5 flame scanner is a microprocessor based flame scanner utilizing an ultraviolet tube-type sensor and an electro-mechanical self-checking shutter mechanism. The Fireye 65UV5 flame scanner incorporates an internal flame relay with a fixed ON/OFF threshold thereby eliminating the need for an external flame amplifier.

The 65UV5 scanner is available with a one-second or four second flame failure response time

(FFRT) depending on the model selected. The “E” versions are one second FFRT, the non-”E”versions are four seconds FFRT. The Fireye 65UV5-1004, -1004E flame scanner provides an analog 4 to 20 mA output referenced to flame signal strength.

The Fireye 65UV5 flame scanner is powered from a 24 Vdc power source provided externally and includes an integral 10-foot (3 meter) cable. A color-coded internal LED indicates flame status and alarm condition. This can be viewed through a viewing port on the rear cover.

The 65UV5 housing has a NEMA 4X / IP66 rating. The unit is suitable for use in Class 1, Div. 2 hazardous environment groups A, B, C & D or Ex II3 G/D Ex nA IIC T4A.

65UV5 CEX models are wired directly via a terminal rail located within the CEX housing. Suitable glands must be used to terminate the cable at the housing.

Note: The 65UV5-1000, -1000E scanners became obsolete in 2008, and were replaced by the enhanced capability of the 65UV5-1004 and -1004E scanners.

APPLICATION

Fireye 65UV5 self-checking scanners are used to detect ultraviolet emissions from fossil fuel flames such as natural gas, coke oven gas, propane, methane, butane, kerosene, light petroleum distillates and diesel fuels.

PRINCIPLE OF OPERATION

The 65UV5 scanners use a UV-eye detector. This detector is a sealed, gas filled, UV-sensitive tube containing two electrodes connected to a source of DC voltage. When UV radiation of sufficient energy falls upon the electrodes, electrons are released and the inter-electrode gas becomes conductive, resulting in an electric current flow from one electrode to the other. The current flow starts and ends abruptly and is known as an “avalanche.”

A very intense source of UV radiation will produce several hundred avalanches or pulses per second.

With less radiation there will be fewer pulses per second. Upon total disappearance of flame, the detector output ceases. Thus, the presence or absence of pulses is an indication of the presence or absence of flame; the frequency of the pulses is a measure of flame intensity. When the pulses reach a sufficient level, the internal flame relay is energized.

1



FEATURES

The components are contained in a cast aluminum NEMA 4X/IP66 housing sealed with an oil-resistant gasket. The quartz lens is a planoconvex design, resulting in increased sensitivity. Also included in the scanner is an electromagnetic shutter that permits a self-checking circuit to verify that the scanner and signal circuits are producing valid flame presence or absence information. During the shutter closed period, the detector’s optical path is blocked from flame radiation, allowing the internal microprocessor to verify the proper operation of the ultraviolet tube. While the shutter is open, flame presence or absence is detected. The self-check shutter operation and fault diagnostics are fully described later in this bulletin.

SPECIFICATIONS

FIGURE 1.

DIMENSIONS (65UV5-1000 shown)

4.87" (123.67mm)

7.39" (187.58mm)

0.2" (6mm)

2.07" (52.45mm)

3.93" (99.82mm)

1.18" (29.85mm)

4.74"

(120.4mm)

1" NPT OR 1" BSP THREAD

3/4" NPT OR 3/4" BSP THREAD

TYPE 65UV5

SPECIFICATIONS TABLE

Table 1:

SCANNER MODEL

65UV5-1000

65UV5-1000E

65UV5-1004

65UV5-1004E

65UV5-1000ECEX

65UV5-1004ECEX

MOUNTING THREADS

SIGHT PIPE

CONNECTION, 1”

NPT

BSP

NPT

BSP

BSP

BSP

COOLING AIR

CONNECTION, 3/4”

NPT

BSP

NPT

BSP

BSP

BSP

AGENCY APPROVALS

FM DIN CERTCO DIN-DVGW CE

X

X

X

X X

X

X

X

X

X

X

X

X

ULC

X

X

FLAME FAILURE

RESPONSE TIME

4 Sec.

1 Sec.

4 Sec.

1 Sec.

1 Sec.

1 Sec.

2

®

SPECIFICATIONS (non CEX versions)

MECHANICAL:

Housing Material:

Housing Weight:

Cast aluminum with black polyester powder coat finish

4 lbs (2kg)

Hazardous Classifications: Class I, Division 2, Groups A, B, C & D, Class II, III, Division 2,

Groups F and G

Ex II 3 G/D Ex nA IIC T4A

CAUTION: Spring fasteners should be clipped and tightened to ensure a good bond to

housing and maintain the integrity of the NEMA 4X rating.

Mounting:

Model 1000: 1" NPT female pipe mount with 3/4" NPT female cooling air connection

Model 1000E: 1" BSP female pipe mount with 3/4" BSP female cooling air connection

Model 1004: 1" NPT female pipe mount with 3/4" NPT female cooling air connection

Model 1004E: 1" BSP female pipe mount with 3/4" BSP female cooling air connection

Cooling / Purge Air Requirements:

Volume:

Pressure:

Temperature Rating:

Humidity:

4 SCFM (113 l/min) at 3/4" threaded mounting flange, or 1 inch “Y” fitting, mounted on scanner sight pipe. Temperature near the upper limit of the scanner operating range and/or use with dirty/dusty fuels may require up to 15 SCFM (425 l/min).

Adequate to overcome furnace or windbox pressure

-40° F to + 150°F (-40°C to +65°C)

0% to 95% relative humidity, non-condensing

ELECTRICAL:

Input Power:

24 Vdc, + 20% / - 25%, 3.8 Watts

Electrical Connection:

Cable gland and 10 ft (3m) of captive cable

Relay Output

FLAME RELAY, (N.O.) / (N.C.) SPDT

Contact Rating:

FAULT RELAY, (N.O.) SPST

Minimum: 1 mA @ 5 Vdc

Status Indication:

Analog Output:

Maximum: 2 A @ 30 Vdc

2 A @ 240 Vac

Internal LED: “Flame Signal”, “Fault Indication”

4-20 mA DC current, referenced to 24 Vdc common, maximum connected load 750 ohms

INTEGRAL CABLE SPECIFICATION:

Cable Specification:

P/N 59-536

Multi-core 8 conductor, color coded, #18 AWG wires and overall braided shield.

Nominal O.D. = .38” (9.6 mm)

RoHS Compliant

Meets UL PLTC Class 1, Div 2, no conduit required.

UV resistant, Oil resistant.

Temperature Rating:

-40 °C to 105 °C

3

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SPECIFICATIONS (CEX MODEL)

FIGURE 2.

SIMPLICITY SCANNER in CENELEC HAZARDOUS AREA HOUSING (mounting flange kit ordered separately)

3/4” NPT THREADED OPENING FOR CABLE ENTRY

FOR WIRING INSTRUCTIONS REFER TO FIGURE 3

0.35 (9)

MOUNTING SCREWS (4 PLC.)

3/8" THREADED OPENING FOR COOLING AIR

5.28

(134)

4.41

(112)

1" FEMALE THREAD

SIGHT PIPE MOUNT

FLANGE GASKET

DIMENSIONS IN INCHES (MM)

ASSEMBLY SHOWN WITH HOUSING FLANGE KIT, ORDERED SEPARATELY

4.53 (115)

8.94 (227)

4.41 (112)

3.56 (90)

*HOUSING FLANGE KIT

*HOUSING FLANGE KIT, ORDERED SEPARATELY

(INCLUDES NPT OR BSP FLANGE, GASKET, MOUNTING SCREWS)

P/N 129-168-1 (NPT)

P/N 129-168-2 (BSP)

NOTE: All models of the Simplicity 65UV5-1004 CEX flame scanners are housed within an ATEX approved housing for application in Exd IIC T6 hazardous rated environment. In addition the ATEX housing is designed to meet the requirements of IP66 (NEMA 4X).

SPECIFICATIONS (CEX MODEL)

MECHANICAL:

Hazardous Classifications:

Exd IIC T6 ATEX

Cooling / Purge Air Requirements:

Source: Clean, dry, cool

Volume: 4 SCFM (113 l/min) at 3/4" threaded mounting flange, or 1 inch “Y” fitting,

mounted on scanner sight pipe. Temperature near the upper limit of the scanner operating range and/or use with dirty/dusty fuels may require up to 15 SCFM (425 l/min).

Pressure:

Temperature Rating:

Humidity:

Adequate to overcome furnace or windbox pressure

-40° F to + 150°F (-40°C to +65°C) maximum dependent on “T” classification

0% to 95% relative humidity, non-condensing

ELECTRICAL:

Input Power:

24 Vdc, + 20% / - 25% supply current 100 mA

Electrical Connection:

Internal terminal rail

Relay Output

FLAME RELAY, (N.O.) / (N.C.) SPDT

Contact Rating:

Status Indication:

Analog Output:

FAULT RELAY, (N.O.) SPST

Minimum: 1 mA @ 5 Vdc

Maximum: 2 A @ 30 Vdc

2 A @ 240 Vac

Internal LED: “Flame Signal”, “Fault Indication”

4-20 mA DC current, referenced to 24 Vdc common, maximum connected load 750 ohms

4

®

INSTALLATION

The best scanner sighting results are obtained when the scanner is aimed so that its line of sight intersects the burner center line at a slight angle, as shown in Figure 3. The area of maximum ultraviolet radiation is near the base of the flame envelope. When only one scanner is used per burner, the intersection should be made so the line of sight or viewing angle can also see the pilot flame. Consideration must be given to burner secondary air rotation (some burners have clockwise air rotation and others counter-clockwise). Figure 3 illustrates how scanner location is influenced by the pilot positions and secondary air circulation. Physical obstructions such as air register blades should not fall in the line of sight of the scanner.

FIGURE 3.

AIR REGISTER

BLADES

FLAME

ENVELOPE

SCANNER

LINE OF

SIGHT

BURNER

THROAT

BURNER

CENTER LINE

BASE

PRIMARY

COMBUSTION

ZONE

SINGLE BURNER SCANNER SIGHTING

1.

AN ACCEPTABLE SCANNER LOCATION MUST ENSURE THE FOLLOWING:

— Reliable pilot flame detection.

— Reliable main flame detection.

— Rejection of pilot flame too short or in the wrong position to ignite the main flame reliably, thus prohibiting main fuel admission.

NOTE: Reliable signals must be obtained at all air flows and furnace loads (ranges of fuel firing).

FIGURE 4.

IGNITOR

IGNITOR

SCANNER SCANNER

MAIN

BURNER

MAIN

BURNER

CCW ROTATION CW ROTATION

SCANNER LOCATION VS. SECONDARY AIR ROTATION

2.

3.

If combustion air enters the furnace with a rotational movement of sufficient velocity to deflect pilot flame in direction of rotation, position the scanner 0 to 30 degrees downstream of the pilot burner and close to the periphery of the throat where the ultraviolet radiation is at a maximum.

(See Figures 3 and 4).

Having determined an appropriate location for the sight tube, cut a clearance hole for a 2 inch pipe through the burner plate. If register vanes interfere with the desired line of sight, the interfering vane(s) should be trimmed to assure an unobstructed viewing path at all firing levels, see

Figure 4.

5

FIGURE 5.



4.

Mount scanner sight pipe by either:

— Centering a Fireye No. 60-1664-3 (NPT) or 60-1664-4 (BSP) swivel mount over the hole and installing the sight pipe on the swivel mount,

or

— Inserting the end of the sight pipe into the hole, aligning the pipe to the desired viewing angle and tack weld. (Welding must be adequate to temporarily support the weight of the installed scanner). The sight pipe should be arranged to slant downward so that the dirt and dust will not collect in it.

FLAME MUST COMPLETELY COVER SIGHT OPENING

NOT THIS NOT THIS BUT THIS

5.

6.

When a satisfactory sighting position has been confirmed by operational test, (see section on alignment), the sight pipe should either be firmly welded in place or, if the swivel mount is used, the base position should be secured by tightening the three hex head cap screw located on the swivel mount ring. In certain older style swivel mounts, tack welding may be required.

Excessive flame signal can affect flame discrimination and prevent the control connected to the scanner from performing properly. To reduce the signal level of the tube, or improve flame discrimination, orifices may be installed to decrease the scanner’s field of view and reduce its sensitivity. Installation of the orifice disk is shown in Figure 11.

7.

The scanner viewing window must be kept free of contaminants (oil, smoke, soot, dirt) and the scanner temperature must not exceed its maximum rating. Both requirements will be satisfied by continuous injection of purge air.

The scanner mounting may be made with provision for purge air through the 3/4” opening as shown in Figure 6, Item A or C, or through a 1" tee/wye connection as shown in Figure 6, Item B. Normally only one of the two connections is provided with purge air and the other is plugged. When a Fireye coupling is used as shown in Figure 6, the 1" tee/wye connection is used for the purge air (plug 3/4” opening).

Under normal temperature conditions, with clean burning fuels and moderate ambient temperature conditions, purge air flow of approximately 4 SCFM (113 L/min) is generally adequate. A 0.1 psig positive pressure difference between the atmosphere and boiler pressure measured at right angle to the purge air flow, should result in a purge air flow of 4 SCFM. Up to 15 SCFM (425 L/min) may be required for fuels that may produce high levels of smoke of soot or for hot environments to maintain scanner internal temperature within specifications.

NOTE: The maximum viewing field of the lens is one inch per foot. Do not use more than one foot of one inch sight pipe. Increase sight pipe diameter one inch for every additional foot of sight pipe length used, to avoid restricting the scanner’s field of view. Temperature in the scanner housing should not exceed those temperature limits listed in the specifications. Excessive temperatures will shorten scanner life.

WARNING: Sighting position of the flame scanner should insure that the scanner does not respond to the ignition spark.

6

®

FIGURE 6.

A

B

C

D

#60-1664

1” SWIVEL MOUNT

#35-127

HEAT INSULATING NIPPLE

1” UNION

AIR ENTRY

(PURGE AND

COOLING)

APERTURE

#53-121

#60-1664

1” SWIVEL MOUNT

STANDARD MOUNTING

#60-1664

1” SWIVEL MOUNT

#35-127

HEAT INSULATING NIPPLE

COOLING AIR/ENTRY

#35-127

HEAT INSULATING NIPPLE

1” UNION

AIR ENTRY

(PURGE AND

COOLING)

1” SIGHT PIPE

(BY OTHERS)

#35-127

HEAT INSULATING NIPPLE

“WYE” #35-200 (NPT)

“WYE” #35-239 (BSP)

1” UNION

AIR ENTRY

(PURGE AND

COOLING)

#60-1664

1” SWIVEL MOUNT

#35-127

HEAT INSULATING NIPPLE

1” SIGHT

PIPE

(BY OTHERS)

COOLING AIR/ENTRY

(PURGE AND COOLING)

#35-127

ALTERNATE MOUNTING

(NOT ADJUSTABLE)

#35-127

HEAT INSULATING NIPPLE

1” UNION

“WYE” #35-200 (NPT)

“WYE” #35-239 (BSP)

#60-1199-1 (NPT)

#60-1199-2 (BSP)

SEALING COUPLING WITH QUARTZ

WINDOW. REQUIRED WHEN SCANNER LENS IS

EXPOSED TO EXCESSIVE PRESSURE

FURNACE OR WINDBOX PRESSURE

CEX MOUNTING

RETAINER

#34-181

MOUNTING FOR

HIGH TEMP.

APPLICATIONS

SCANNER WIRING

Non-CEX versions of the 65UV5 scanner include an integral 10-foot (3-meter) cable. A four conductor cable is provided for the -1000 and -1000E (Fig. 7), while an eight conductor cable is provided for the -1004 and 1004E ( Fig. 8), see scanner wiring diagram for connection details.

The 65UV5-1004 and -1004E cable is not to be flexed at temperatures lower than -25°C.

WARNING: Unit should be electrically protected by external fuses (see Fig. 7 and Fig. 8 for rating) to prevent damage to unit in case of a short or overload.

7

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FIGURE 7.

SCANNER WIRING FOR 1000 AND 1000E SCANNER VERSIONS

65UV5-1000 (E) SCANNER

SCANNER MUST BE CONNECTED TO GROUND

SAFETY GROUND SCREW

24VDC

INPUT

1 AMP SLOW BLOW*

RED

RED

BLACK

2 AMP SLOW BLOW*

FLAME

RELAY

(NOTE 3)

SAFETY

RELAY

BLACK

*EXTERNAL FUSES

FIGURE 8.

SCANNER WIRING FOR 1004 AND 1004E SCANNER VERSIONS

65UV5- 1004, -1004E SCANNER

24VDC SUPPLY

(POLARITY NOT IMPORTANT)

TO BURNER MANAGEMENT

SYSTEM

24 VDC

INPUT

POWER

BROWN +

WHITE -

(1 AMP SLOW BLOW)

*

INPUT

SUPPLY

24 VDC

(NOTE 1)

FAULT

RELAY

(NOTE 3)

BLUE

(2 AMP SLOW BLOW)

*

BLACK

RED

YELLOW

FLAME

RELAY

OUTPUT

(NOTE 3)

ANALOG

OUTPUT

INTERNAL

GROUND

CONTACT

EARTH

GROUND

CABLE COLOR CODES AND DESCRIPTIONS

BLUE = Relay voltage input (5 VDC to 230 VAC, 1 mA to 2000 mA) fused

BLACK = Safety Relay voltage output (voltage output when no error)

RED = No flame present ( voltage output when no flame)

YELLOW = Flame is present (voltage output when flame is present)

ORANGE = 4-20 mA flame strength output (not safety critical)

GREEN = EARTH GROUND

BROWN = 24 Volt supply (+)

WHITE = 24 Volt supply return (-)

ORANGE

GREEN

*

EXTERNAL FUSE

SUPPLY 5 VDC

TO 230 VAC

(NOTE 2)

VOLTAGE = NO

FAULT CONDITION

(NOTE 4)

FLAME OFF

(NOTE5)

FLAME ON

(NOTE 6)

(-)

(+)

4 TO 20 mA

FLAME STRENGTH

EARTH

GROUND

NOTES:

1. Fireye recommends the use of power supply 60-2685 -25, -50

2. Suitable signal voltage provided by BMS

3. All relay contacts are shown in their shelf state (unpowered).

4. Fault Relay contact is closed whenever scanner is powered and no fault condition exists.

5. Flame OFF contact opens when flame is detected.

6. Flame ON contact closes when flame is detected.

8

®

Note: When the older generations of 65UV5-1000 or -1000E scanners are used for a Class 1, Div. 2 application, the cable gland MUST be removed and replaced with P/N 129-149, liquid tight cable gland, so that liquid tight flexible conduit (Anaconda Sealtight ® 1/2" Type H.T.V.A or equivalent, available at any electrical supply outlet) can be inserted over the existing cable. The newer generation 65UV5-1004 and 1004E utilize a special cable that is approved for use in a Class 1, Div. 2 area without the use of the flexible conduit.

ALTERNATE LIQUID

TIGHT CONNECTION

SCANNER WIRING - CEX VERSIONS

CEX models contain two internal four-pole terminal blocks for the user to connect their scanner cable. The terminal blocks are identified by the internal wire color code and functions as described in

Table 2 and Figure 9 below.

The installer must use a suitable EX cable gland or conduit fitting at the CEX housing's ¾" NPT threaded cable entry opening.

To reduce electrical noise interference, take precautions to keep the scanner cable away from any high inductive wiring associated with high inductive loads or high voltage, high energy spark ignition systems.

WARNING: Unit should be electrically protected by external fuses (see Fig. 7 and Fig. 8 for rating) to prevent damage to unit in case of a short or overload.

Table 2:

WIRING OF SIMPLICITY MODEL 65UV5-1004 “CEX” SCANNERS

TERMINAL

TERMINAL BLOCK 1

( RELAY CONTACT CONNECTIONS)

TERMINAL BLOCK 2

(POWER CONNECTIONS)

3

4

5

1

2

6

7

8

INTERNAL WIRE

COLOR CODE

RED

BLACK

BLUE

YELLOW

WHITE

BROWN

GREEN

ORANGE

FUNCTION

FLAME RELAY (N.C.)

FAULT/ FLAME RELAY (COM)

FAULT RELAY (N.O.)

FLAME RELAY (N.O.)

24 VDC (-) SUPPLY

24 VDC (+) SUPPLY

EARTH GROUND

4-20 mA OUTPUT (+)

Note: 4-20mA negative connection should connect to the power supply negative wire (white).

9

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FIGURE 9.

65UV5-1004 “CEX” INTERNAL WIRING - COLOR CODE

TERMINAL BLOCK 1

(Relay Contact Connections)

TERMINAL BLOCK 2

(Power Connections)

(5)

WHITE

(6)

BROWN

(7)

GREEN

(8)

ORANGE

FRONT

(Lens

End)

FRONT

(Lens

End)

RED

(1)

BLACK

(2)

BLUE

(3)

YELLOW

(4)

GROUND

LUG (Note 1)

Note: Connect scanner cable shield to ground lug.

Product

Label

SELF-CHECK SHUTTER OPERATION

The 65UV5 self-check shutter mechanism is a powered-open, powered-closed device (no return spring). The open/closed shutter period is variable and controlled by the scanner’s microprocessor.

Upon initial 24 vdc power application, the shutter will close and open once to verify proper operation. The shutter will then remain open until a UV flame source is present and the internal flame relay (RF) is energized.

When the flame relay (RF) is energized, the shutter will be driven closed once every 12 seconds. The amount of time the shutter will remain closed is determined by the scanner’s microprocessor and is dependent upon the UV tube’s response. The amount of time closed can vary between 50 ms and 300 ms.

In the event of a self-check failure the flame relay will de-energize.

INDICATION LEDs

The 65UV5 contains a color coded internal LED that indicates flame status and alarm condition per the following table. View LED through lens on back of housing. Refer to Fig. 12 for LED location.

Table 3:

LED STATUS CONDITION *SHUTTER POSITION FLAME

RELAY (RF)

STATUS

OPEN CLOSED

GREEN

RED

OFF

ONCE PER

SECOND

FLASHING

RATE

RAPID

FLASHING

RATE

STEADY ON

OFF

FLASHING

ON

NO FLAME DETECTED

MARGINAL FLAME SIGNAL

NORMAL FLAME SIGNAL

HIGH FLAME SIGNAL

NORMAL

*SELF-CHECK FAILURE

(observe shutter position)

MICROPROCESSOR ERROR

OFF

ON

ON

ON

ON

OFF

OFF

SHUTTER

FAILURE

UV TUBE

FAILURE

10

FIGURE 10.

LED LOCATION

®

VIEWING LENS

ALIGNMENT AND ADJUSTMENT

The following procedures are recommended to ensure optimum flame detection and discrimination.

Flame discrimination is the ability to see only one burner or one pilot with other burners or pilots operating nearby. These procedures should be used whenever parts are replaced, when the scanner has been moved, when the flame shape is altered (additional fuels, new burners, burner/register modifications) as well as on all new installations.

CAUTION: Ensure scanner does not respond to the ignition spark.

Pilot Flame Scanner

1.

2.

3.

4.

5.

Apply power to scanner.

Start pilot.

Adjust scanner sighting to detect pilot flame in the manner shown in Figure 4.

When flame is properly sighted, the flame signal relay should energize and the internal LED should be indicating Flame Signal (see table 3).

Make sure that the scanner does not respond to the ignition spark. This is accomplished by cutting off the fuel to the pilot and attempting to start the pilot using the spark igniter. If the system responds to the spark, the sighting should be realigned.

CAUTION: Minimum pilot is the minimum flame required to satisfactorily ignite the main burner. Be sure to test for reliable signals under maximum airflow conditions when the pilot may not be detected outside the line of sight. If this occurs, resighting is required.

4.

5.

Main Flame Scanner

1.

2.

3.

Apply power to scanner.

Start pilot.

Adjust scanner sighting so that ignition spark and pilot flame are not detected. Test should be conducted with maximum pilot flame and with both minimum and maximum airflow.

Start main burner.

Adjust scanner sighting to detect main burner flame. When sighting is correct (see above), the flame relay should energize and the internal LED should be indicating Flame Signal (see table

3).

11

12



6.

7.

When proper signal is established, manually close off the main burner fuel supply. When burner flame becomes unstable or is extinguished, the flame relay should de-energize and the internal

LED should be off.

Start an adjacent burner and vary its firing rate under normal airflow conditions. Make certain that the main flame scanner on the burner not in service does not respond to adjacent burner flame. Readjust sighting if necessary.

ACCESSORIES

Swivel Mount

The scanner swivel mount P/N 60-1664-4 (BSP) or 60-1664-3 (NPT) is used to adjust the scanner sighting angle after the scanner has been installed. The swivel mount is used as indicated the figures in this document.

FIGURE

14

14A

14B

14C

14D

14E

14F

14G

14H

14I

14J

Orifices

The Orifice restricts the field of view (target area), reduces air flow, maintains air flow, maintain air block, and increases discrimination between flame and background radiation. The orifice is secured within the ball of a swivel mount with an orifice retainer or the orifice can be placed within a one inch union (not provided).

The scanner should ideally sight a target area of 4 to 25 square inches (25-150 cm

2

) of the flame front. The flame front is a plane within the combustion space separating the region of unburned fuel from the burning fuel.

Note: There is an inverse relationship between discrimination and sensitivity.

Table 4:

PART

NUMBER

53-121

53-121-2

53-121-3

53-121-4

53-121-5

53-121-6

53-121-7

53-121-8

53-121-9

53-121-10

34-181

DESCRIPTION

Orifice Kit Contains the Following:

Orifice .062” Diameter

Orifice .078” Diameter

Orifice .093” Diameter

Orifice .109” Diameter

Orifice .125” Diameter

Orifice .187” Diameter

Orifice .250” Diameter

Orifice .375” Diameter

Orifice .50” Diameter

Orifice Retainer

Heat Insulating Nipple

The heat insulating nipple P/N 35-127-3 (BSP) or 35-127-1 (NPT) prevents heat transfer from the hot sight pipe to the scanner head.

Sealing Coupling with Quartz Window

The sealing coupling (60-1199-x) is used whenever a coupling or seal is required for scanner piping.

The size is one inch US standard taper pipe thread (1" NPT). The sealing coupling has a quartz window to block off the scanner from the furnace pressure and heat. When the sealing coupling is used, the 1" tee/wye is used for the purge air inlet. Be sure the quartz window is properly seated to seal off the scanner. Do not over-tighten coupling collar because damage to the window may result. For best results, hand tighten coupling collar.

®

FIGURE 11.

SWIVEL MOUNT

BALL

FIELD OF VIEW

ORIFICE ORIFICE

RETAINER

ALTERNATE PURGE

AIR SUPPLY

FIELD

OF

VIEW

1” SWIVEL MOUNT

1” UNION

3/4” PLUG

OR PURGE

AIR SUPPLY

MAINTENANCE

1.

2.

3.

The control and scanner should be powered at all times (except for repair, cleaning or replacement) to reduce any harmful effects of atmospheric humidity.

The scanner and sight pipe must be kept clean to prevent overheating and assure optical qualities.

When replacing or cleaning the UV tube, note the position of the tube pins. They are mounted on a rectangular base so that the tube can only be inserted into the socket with the electrodes broadside to the shutter window.

CAUTION: DISCONNECT OR SHUT OFF ELECTRIC POWER WHEN WORKING

ON SCANNER.

4.

5.

Clean the quartz lens and tube with glass detergent or glass cleaning agents which contain no abrasives. After cleaning, remove all cleaning films with a soft lint-free cloth. (Some cleaning films may reduce or filter UV).

Use original FIREYE parts to maintain optimum operation, see table 5.

13

Table 5:

FIGURE 12.

RECOMMENDED SPARE PARTS

Part Number

4-290-1 UV Tube

Description

61-6974

002608-001

002611-001

101537-001

107427-006

Shutter Assembly

Flange Gasket

Scanner Lens

Lens Retaining Ring

Lens O-Ring (2 required)

UV TUBE

FLANGE

GASKET



LENS,

RETAINER,

O-RINGS (2)

FIGURE 13.

SHUTTER SECURING SCREWS

SHUTTER

SHUTTER

CONNECTOR

14

®

FIGURE 14.

A. THROUGH I. ORIFICES .062 DIA TO .5 DIA

J. 34-181 ORIFICE RETAINER

K. 35-127-1 (NPT) HEAT INSULATING NIPPLE

35-127-3 (BSP) HEAT INSULATING NIPPLE

L. 92-48 QUARTZ WINDOW (for 61-1199 Sealing

Coupling shown in Fig. 15.

FIGURE 15.

A. 60-1664-3 (NPT) SWIVEL MOUNT

60-1664-4 (BSP) SWIVEL MOUNT

B. 60-1199-1 (NPT) SEALING COUPLING W/QUARTZ WINDOW

60-1199-2 (BSP) SEALING COUPLING W/QUARTZ WINDOW

A

B

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NOTICE

When Fireye products are combined with equipment manufactured by others and/or integrated into systems designed or manufactured by others, the Fireye warranty, as stated in its General Terms and

Conditions of Sale, pertains only to the Fireye products and not to any other equipment or to the combined system or its overall performance.

WARRANTIES

FIREYE guarantees for one year from the date of installation or 18 months from date of manufacture of its products to replace, or, at its option, to repair any product or part thereof (except lamps, electronic tubes and photocells) which is found defective in material or workmanship or which otherwise fails to conform to the description of the product on the face of its sales order. THE FOREGOING

IS IN LIEU OF ALL OTHER WARRANTIES AND FIREYE MAKES NO WARRANTY OF

MERCHANTABILITY OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED. Except as

specifically stated in these general terms and conditions of sale, remedies with respect to any product or part number manufactured or sold by Fireye shall be limited exclusively to the right to replacement or repair as above provided. In no event shall Fireye be liable for consequential or special damages of any nature that may arise in connection with such product or part.

FIREYE



3 Manchester Road

Derry, New Hampshire 03038 USA www.fireye.com

CU-104

MARCH 28, 2013

Supersedes October 11, 2012

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