Installing the Detector
FV-40 Series Flame Detector
087-0056 REV F
37
The factory Default settings listed for each function are:
Sensitivity – 30
Alarm Delay – 3 Sec.
Alarm Latch – No
Auxiliary Relay – No
Automatic BIT – Yes
Alarm BIT – No
Auxiliary BIT – No
EOL – No
Heated Optics – Auto
Temperature – 41°F (5°C)
2.8.1 Sensitivity
The detector offers four (4) sensitivity settings. The settings refer to an
n-heptane or gasoline fire of 1ft² (0.1m²), from low sensitivity of 50 ft.
(15m) to 215 ft. (65m). For other types of fuel sensitivity, refer to Table 5.
Table 19: Sensitivity Settings
Sensitivity Setting
Detector Distance
feet
Detector Distance
meters
15 50 15
30 (default)
100
30
45 150 45
60 215 65
2.8.2 Alarm
Delay
The detector is equipped with an Alarm Delay option, which provides
programmable time delays with settings at:
Antiflare (default setting, except for FV-40 UF: Default = 0 seconds)
The Antiflare mode is selected to prevent false alarms in locations where
fast flares may be present. The Time Delay for fire alarms in this mode
ranges from 2.5 to 15 seconds (usually, less than 10 seconds).
Other delays settings are available:
0, 3, 5, 10, 15, 20 or 30 seconds
When an Alarm (Detection) level condition occurs, the detector delays the
execution of the Alarm outputs by the specified period of time. The detector
then evaluates the condition for 3 seconds. If the Alarm level is still present,
the Alarm outputs are activated. If this condition no longer exists, the
detector returns to its standby state.
