E VERY L IFE H AS A P URPOSE… Flame Detection Theory.

EVERY LIFE HAS A PURPOSE…

Flame Detection

Theory

Requirements of a Fire

Oxygen

HeatFu

el

Characteristics of a Fire

High Emissions of Ultraviolet Radiation

High Emissions of Infrared Radiation

Presence of Light, Smoke and Airborne Debris

False Alarm Sources

Arc Welding

Sunlight

Infrared Energy

Modulation

Reflective

Characteristics of a Fire

Ultraviolet Region Visible Region Infrared Region

Sun’s radiation reaching the Earth

Relative Energy

300n

m

400n

m

800n

m

2 to

3

mic

rons

Wavelength

UV Phototube

300n

m

400n

m

800n

m

2 to

3

mic

rons



Relative Energy

260n

m

135n

m

UV PhototubeUltraviolet Radiation

Photocathode

Electrons

Anode

-VDC

+

Gas-Filled Phototube

IR Devices

300n

m

400n

m

800n

m

2 to

3

mic

rons

Wavelength



Relative Energy

4.35

m

icro

ns

IR Devices

300n

m

400n

m

800n

m

2.7

to 3

.2

mic

rons

Wavelength



4.35

m

icro

ns

Hydrogen fires emit H2O vapors @ 2.95 microns

Relative Energy

FlameGard 5 UV/IR

FlameGard 5 UV/IR

Ultraviolet + Infrared Detection

Photo-tube + Pyroelectric (Flicker)

FlameGard 5 UV/IR Features

Monitors in both UV and IR spectral ranges reducing possibility of false alarms caused by lightning, arc welding, hot objects etc.

Typical Response time: < 3 seconds @ 50ft 120° maximum horizontal field of view -40°F to +185°F (-40°C to +85°C) operating

temperature COPM (Continuous Optical Path Monitoring) RS-485 Modbus RTU, HART Hydrogen fire configuration available

FlameGard 5 UV/IR Physical Characteristics

Assembly Three Distinct Explosion-proof Housings:

UV/IR COPM Light Rods (Reflective Coated)

UV - Straight IR - Curved

O-Ring Sealed Windows

Common Base with Bracket Mounting Holes Two (2) Bottom Entry Conduit Connections (3/4” NPT) “Drip Lip” (3/4 of housing mating surface)

FlameGard 5 UV/IR Specifications

Environmental Temperature

FlameGard 5 UV/IR -40°C to 85°C (-40°F to 185°F)

Ratings IP 66, Type 4X, Class I, Div 1, Groups B, C & D;

Class II, Groups E, F & G; Class III


Performance Improved detection and false alarm immunity

Field-of-View FlameGard 5 UV/IR - 115° Vertical, 120° Horizontal

Optical Sensitivity 1 sq. ft. fire at 50 ft.

FlameGard 5 UV/IR Field of View (Horizontal)

15°

HORIZONTAL

SENSITIVITY

HORIZONTAL(±5°)

0°

50%

75%100%

±60°

±30°

±45°

±15°

60°

45°

10'

15'

40'

35'

30'

25'

20'

30°15° 50'

45'

0°

25'50'50'

50'

50'

30'

<20'25'

50'

50'

50'

<5'

15'

<5'

<5'

75%

TABLE CHART

100% 50%

60°

45°

30°

-45°

-30°

-15°

-60°

0°

50'

+15°

40'45 '

35 '

+30°

+45°

25'

30 '

20 '

10 '15 '

+60°

VERTICAL

TABLE CHART100%

75%

50%

(±5°)

SENSITIVITY

±60° 20'

VERTICAL

±45°

±30°

±15°

0°

50'

50'

50'

50'

100%

<20' <20'

30'

50'

50'

50'

<20'

25'

25'

25'

75% 50%

75%

100%

50%

FlameGard 5 UV/IR Field of View (Vertical)

15°

HORIZONTAL

SENSITIVITY

HORIZONTAL(±5°)

0°

50%

75%100%

±60°

±30°

±45°

±15°

60°

45°

10'

15'

40'

35'

30'

25'

20'

30°15° 50'

45'

0°

25'50'50'

50'

50'

30'

<20'25'

50'

50'

50'

<5'

15'

<5'

<5'

75%

TABLE CHART

100% 50%

60°

45°

30°

-45°

-30°

-15°

-60°

0°

50'

+15°

40'

45'

35'

+30°

+45°

25'

30'

20'

10'

15'

+60°

VERTICAL

TABLE CHART100%

75%

50%

(±5°)

SENSITIVITY

±60° 20'

VERTICAL

±45°

±30°

±15°

0°

50'

50'

50'

50'

100%

<20' <20'

30'

50'

50'

50'

<20'

25'

25'

25'

75% 50%

75%

100%

50%


Performance

Spectral Sensitivity FlameGard 5 UV/IR: 185 to 260 nanometers & 4.35 microns

Response Time (Normal Operation

FlameGard 5 UV/IR

Detector Response (nominal) < 500ms

Output Response (50 ft. fire) < 3sec.

FlameGard 5 UV/IR

Detector Response (nominal) < 500ms

Output Response (50 ft. fire) < 3sec.


Outputs 4-20 mA Signal

0 mA, Fault 2 mA, COPM Fault 4 mA, Ready 8 mA, IR Only 12 mA, UV Only 16 mA, Warn 20 mA, Alarm (After time delay)


Outputs Commands

Read Only 4-20 mA Alarm, Warning, Fault UV Only Signal, IR Only Signal UV Source Lamp Fault, IR Source Lamp Fault Low Voltage Communication Faults

Write Only Auto Test, Reset, Accept

Read and Write Address, Modbus Setup Sensitivity (100%, 75%, 50%) Time Delay, Relay States


Outputs

Relays: (3) SPDT (8-amp, 24 VDC/250 VAC

Resistive)

Warning (Immediate, no time delay)

Alarm (After 2, 4, 8 or 10 Sec. Time Delay)

Dip Switch Selectable

RS-485 Selectable (Non-intrusive over-ride)

Fault (Energized, non-latching )


System Modes:

Normal Self Test (Power-up) Alarm Test (Remote)

Fault Diagnostic -Status Indication (LED)

Other Fault Diagnostics via RS-485


Approvals

CSA, FM, ATEX, CE Marking

Power

20-36 VDC Nominal @ 150 mA Max.

Input Terminals

Test and Reset

Wiring: 12 AWG to 22 AWG

FlameGard 5 Test Lamp

Rechargeable/replaceable batteries

Easy grip handle integral with housing

Spring return on/off switch to conserve battery life

Explosion-proof cast aluminum housing

CSA Approved ATEX Approved

Key Features / Benefits

Excellent Discrimination of False Alarms UV detection in the 185-260 nanometer range which

is well below natural sunlight and artificial light. IR detection at 4.3 microns which is the CO2 spike

generated from hydrocarbon fires.

Flicker discrimination algorithm, which eliminates false alarms from IR sources.

Arc welding and lightning will not cause the FlameGard UV/IR to go to false alarm.


“COPM” Continuous Optical Path Monitoring We check the optical path once every minute on both

the UV and IR sides to make sure the windows are not dirty, and that the test sources and detectors are working properly.

Wide Angle of View 120° angle of view is the widest in the industry which

allows for a larger area of coverage and a reduced number of detectors.


Hydrogen Fire Specific Flame Detector Uses a wavelength of 2.7-3.2 microns on

the IR detector to detect the water spike of Hydrogen fires.

Output Capability Three programmable relays (8 AMP)

0-20 mA stepped output to allow quick diagnostics for UV only, IR only, COPM Fault and overall Failures

Modbus for digital communication HART------Digital Communication protocol.

Communicates via analog output line.

E VERY L IFE H AS A P URPOSE… Flame Detection Theory.

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