Det-Tronics S3 Graphics - Manual (Page 149)

12-34 EAGLE QUANTUM PREMIER DEVICES
Version 6.0
EAGLE QUANTUM PREMIER DEVICES
The optional description entered in the miscellaneous text field can be used for further describe where or how
the detector is being used and can be helpful in troubleshooting.
The UVIR X5200 features signal processing options for both the UV and IR sensors. These options determine
the type of logic that the detector will use for processing fire signals to customize the UVIR X5200 to the
application.
UV Flame Detector Options
The UV flame detector output (measured in counts per second) is compared to the fire threshold (the “sensitivity”
setting). If the radiant energy level from the fire exceeds the selected alarm threshold level, the fire alarm output
is activated. In every application, it is crucial to ensure that the radiant ultraviolet energy level from the expected
fire at the required distance from the detector will exceed the selected sensitivity level.
The UV flame detector in the X5200 can be programmed for “Standard” signal processing or “Arc Rejection”.
Arc Rejection (Recommended Factory Setting)
The Arc Rejection mode enables the detector to prevent nuisance fire alarms caused by UV from short-duration
electrical arcs or electrostatic discharge, while maintaining the ability to reliably detect the UV given off by a
flame.
Typical applications that benefit from arc rejection logic include electrostatic coating processes and uncontrolled
environments where transient UV sources can be present, such as many typical outdoor applications. Most false
alarm sources have short transient UV signatures, while fire creates a long UV signature over many seconds.
Most fires are detected in a few seconds.
X5200 • CONFIGURATION