The document discusses different types of electromagnetic radiation, focusing on infrared, visible, and ultraviolet light, and their applications in flame detection and ignition systems. It explains how flame scanners, like the UVtron and various models, detect radiation emitted by flames to ensure safe gas burner operations. The text also highlights the role of igniters in maintaining safe ignition times and the mechanisms involved in flame detection across different fuel sources.

1. Flame Scanner & Igniter
By Aziz Jamali, Sub Engineer Instrument.

2. Sunlight
Sunlight is a portion of the
electromagnetic radiation
given off by the Sun, in
particular infrared, visible,
and ultraviolet light. On Earth,
Useful forms of energy, Such
as heat and electricity, using
a variety of technologies.

3. Wavelength of Light

4. What is infrared Radiation & light
Infrared radiation (IR) is a type of electromagnetic radiation (EMR) with
wavelengths that are longer than visible light but shorter than radio waves. It is
invisible to the human eye,
but can be detected as heat.

5. Infra Red Light
Remote controls Use which send digitally-coded pulses of infrared radiation. They control functions such as power, volume, channels, playback, track
change, energy, fan speed, and various other features & Communication System.

6. Visible light
The human eye can detect
wavelengths from 380 to 700
nanometers.

7. Ultraviolet radiation
Ultraviolet rays are usually invisible to most humans.
Also known as simply UV

8. Flame :-
A flame (from Latin flamma ) is the visible,
gaseous part of a fire. It is caused by a highly
exothermic chemical reaction made in a thin zone.
Generate Ultra Violet Rays.

9. UVTRON:- Flame sensors
This detector is a sealed, gas-filled, UV-sensitive tube containing two electrodes connected to a source of AC 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.”

10. High-Voltage Spark Ignitor Ignition Transformer
of Gas Burners 6000 to 12000 volt.

11. Igniter
Generally 3-5 seconds, called safe ignition time, is the main function of all program controllers.
During this time, the damper is at the low fire position, and the gas valve is opened (different valve opening methods are different, some open a small opening
that can be lit and then slowly open to the set value, and when closed, it is immediately fully closed. ) the igniter keeps discharging the arc.
During this period, the gas must be lit. Only when it is lit can it enter the normal combustion and power adjustment stage. When it is lit, the igniter will stop
working and no longer release the arc. If you can't click, the alarm will be locked immediately. It needs to be re-commissioned and then restarted manually.

12. Flame Scanner
Flames emit electromagnetic radiation in the infrared (IR), visible light and ultraviolet (UV) wavelengths
depending on the fuel source. Because some flames are invisible to the human eye, today's flame
detectors utilize optical technologies to detect flames.
Infrared (IR), Use In Coal Plant .

13. 45UV5 Series Scanner
25SU3 Controls Amplifier Use V-405
The 25SU3-2100 is a Flame Safeguard Amplifier used to detect the presence or absence of a flame in a single or multi-
burner environment.

14. EDISON 46048- UV Flame scanner / Switch
Use KGT 306 A

15. DURAG Flame Scanner Model DLX 100
Use At F- 1003

16. Uv Flame Scanner Use Gas Turbine.