Product Introduction
Introduction to UV Sensor FD2/S
- The combustion process, depending on the fuel type, generally emits radiation in the ultraviolet, visible, or infrared spectrum.
- Indeed, gas oil combustion produces a very bright flame that can be easily detected by ordinary sensors using photocells; however, gas oil combustion also produces many incompletely burned (unburned) substances that gradually pollute and dirty the combustion chamber.
- By properly adjusting the combustion, this problem can be solved and the flame quality improved, making it similar to gas, natural gas, or propane combustion (blue flame).
- Since photocells are not sensitive to blue flame light, flame detection in most gas burners is achieved through the ionization principle; to achieve this, it is simply necessary to immerse an electrode (electrically insulated metal rod) in the flame.
- However, applying this principle in gas burners is not simple because the electrode immersed in the flame easily gets dirty (eventually failing) and also changes the turbulence in the combustion chamber, causing serious problems.
- For these reasons, it is necessary to detect the presence of flame through UV-sensitive detectors.
- It has been verified that the FDx/S sensor is also suitable for gas applications where electrodes cannot be used (e.g., high-temperature environments).
Description of UV Sensor FD2/S
- The FDx/S sensor uses a silicon pre-amplified active element, designed for blue flame burner applications; the sensor's UV light detection limit is 310nm.
- The appropriate electronic interface inside the device makes it compatible with all BRAHMA devices suitable for gas applications. This sensor is especially suitable for use with DS11, DS11P, DSM11, DSM11P, and SM592N/S.
- For single-electrode applications DSM11 and DSM11P, this sensor is strongly recommended.
- To meet the broad market requirements, this sensor is available in two versions: FD1/s (front view) and FD2/s (side view). In applications where the flame is far from the detection point, a high-sensitivity sensor is needed.
- Please note that the FDx detector is sensitive to the ultraviolet part of visible light, so it is recommended to install it in a closed combustion chamber with a burner, or in applications where visible light is completely shielded.
Features of UV Sensor FD2/S
- - Supply Voltage: 220-240V @ 50/60Hz
- On request: 110-120V @ 50/60Hz
- - Power Consumption: 1VA
- - Visible Light Band: 290-350nm
- - Acceptance Angle: 8°
- - Output Current: 50∝A
- - Operating Temperature: -20~ +60℃
- - Humidity: 95%
Main Application Areas of UV Sensor FD2/S
In the industrial field, flame detectors are widely used in large enterprises; infrared and ultraviolet flame detectors are widely used in quality, fire protection, flame monitoring, and temperature detection.
When fuel (oil, gas, coal gas, natural gas, coal powder, etc.) burns,
the flame produces a certain intensity of ultraviolet, visible, and infrared light. Based on the spectral distribution of the flame during combustion of different fuels, the appropriate flame detector is selected.
UV detectors have good stability, high sensitivity, and strong anti-interference capability; in general, UV detectors are often chosen.
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