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3.1
Sensitivity
The detector can be configured to one of four sensitivity levels: low, medium, high, and extreme. The
following table lists for each sensitivity setting the maximum distance, in which a standard fire
would be reliably detected.
Sensitivity level
Medium
Extreme
Further details about the response characteristics of the detector at the different sensitivity settings
and fuel types can be found in 10
3.2
Ultra-Fast Detection
The ultra-fast detection feature allows detection of fireballs and explosions at 5 milliseconds. If
enabled, this feature is independent of other detection algorithms and alarm delays.
3.3
Alarm Delay
When a flame is detected, the flame detector delays the execution of the alarm outputs up to the
configured period. After this time delay, the detector re-evaluates the situation. If a flame is still
detected the alarm outputs are activated.
3.4
Alarm Latch
If the alarm latch is enabled, the detector outputs will remain active even after a flame is no longer
detected. To reset the detector outputs the detector must be power cycled or a manual BIT
initiated.
3.5
Enable Pre-Alarm 0-20mA
If the Pre-Alarm is enabled and Alarm Delay is greater than 0, the detector 0-20mA output will be
16mA and the red LED will blink in case of a pre-alarm fire condition.
1
A standard fire is defined as a 1x1 ft
ft/s (2 m/s).
For more information & Technical support:
F-Guard UV-IR User Manual
T
3: S
ABLE
ENSITIVITY LEVELS
Detection distance in feet (meters)
Low
High
2
(0.1 m
2
) N-heptane pan fire, with maximum wind speed of 6.5
info@gastech.com
and
support@fg-detection.com
Doc. No. F110V0020.06
16 (5)
49 (15)
75 (23)
98 (30)
1
23
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