Product Details
R244 UVtron Flame Photoelectric Sensor No Visible Light Cut-off
Filter Required High Sensitivity for Combustion Monitoring
UVTRON UV on/off detectors utilizing the metallic photoelectric
effect and the gas multiplication effect. It has a narrow spectral
sensitivity of 185 nm to 260 nm and is completely insensitive to
visible light. Unlike semiconductor detectors, it does not require
a visible light cut-off filter, making it very convenient to use.
Features:
- Ultra-sensitive Detection: It's able to perceive extremely faint
ultraviolet rays, with a detection threshold as low as 1 picowatt.
- Solar-blind Property: It possesses no response to visible light and
infrared light, which averts interference from ambient visible and
infrared radiation, and guarantees stable and precise detection.
- High Reliability and Longevity: It can continuously work in the
discharge state for 10,000 hours, with stable performance and a
long service life.
- Swift Response: The response speed is extremely rapid, which can be
completed in just a few milliseconds, and can promptly capture the
change of ultraviolet signal.
- Low-current Operation: It can operate under low current conditions,
which is helpful to reduce the power consumption of the whole
detection system.
- Compact and Portable: The structure is small and light, convenient
for being installed in various narrow space equipment.
Application Areas:
- Combustion Monitoring: In the burners that use gas and oil as fuel,
the R244 can detect the ultraviolet rays produced by the flame, so
as to monitor the combustion situation of the burner and ensure the
normal operation of the combustion equipment.
- Fire Alarm Systems: It is capable of detecting the ultraviolet
radiation generated by the initial stage of a fire, and triggering
the alarm device at the first time, so as to realize the early
warning of a fire and win valuable time for evacuation and
fire-fighting.
- Arson Surveillance: It can be installed in some places that need to
prevent arson. Through the detection of ultraviolet rays, it can
help to promptly discover the abnormal situation of arson behavior
and assist in the investigation of arson cases.
- Ultraviolet Leakage Detection: In the occasions where ultraviolet
devices are utilized, like ultraviolet curing equipment and
ultraviolet sterilization devices, it can detect whether
ultraviolet rays leak out, to avoid the harm of ultraviolet rays to
human body and the environment.
- Discharge Phenomenon Monitoring: It can identify the ultraviolet
radiation produced by the discharge phenomena like corona discharge
of high-voltage transmission lines, which is of great significance
for monitoring the operation status of high-voltage power equipment
and ensuring the safety of the power grid.
Spectral Sensitivity Characteristics (Short) | 185 nm |
Spectral Sensitivity Characteristics (Long) | 260 nm |
[Maximum Rating] Supply Voltage (DC) | 575 V |
[Maximum Rating] The average discharge current | 3 mA |
Discharge start-up voltage (DC) | 440 V |
[Recommended Operating Parameters] Supply Voltage (DC) | 500±50 V |
[Recommended Operating Parameters] average discharge current | 0.3 mA |
[Recommended Operating Parameters] minimum quenching time | 3 ms |
Company Profile
Yijiajie Electronics is a full range of silicon pressure sensors
from the United States, FREESCALE/, GE, MEAS, SMI, and a full range
of sensing and control products from the United States pressure,
temperature and humidity, gas flow, current, Hall effect, etc.,
Japan HAMAMATSU flame, UV sensors, photodiodes, Japan FIGARO, UK
CITY, ALPHASENSE full range of semiconductors, catalytic,
electrochemical gas sensors, French HUMIREL/MEAS humidity sensors
and other international well-known companies authorized agents or
distributors, to provide customers with product information,
products Solutions, product selection, supply guarantee and
logistics services, etc.

