Introduction
FV-40 Series Flame Detector
087-0056 REV F
17
Model F4-UF Ultra Fast UV/IR
The default detection distance for the ALARM level is 65 ft. (20m) from a
standard fire
Note
: Zeta parameters may vary significantly with changes in temperature,
air pressure, humidity, visibility conditions, and so on.
1.5.1.3 Other Fuels
The detector reacts to other types of fire as follows:
The baseline fire refers to n-heptane 1ft
2
(0.1m
2
) and is defined as
100% sensitivity.
For fuel fire – standard pan fire size: 1 ft
2
(0.1 m
2
).
For gas flame - 20 inch (0.5m) high, 8 inch (0.2m) width plume fire.
Maximum Response Time: 10 sec. (3 sec. for Model F4-UF).
Table 5: Fuel Sensitivity Ranges
Type Of Fuel
Max. Distance
(ft./m)
Max.
Distance
(ft./m)
Max. Distance
(ft./m)
Model F4-I3,
F4-MM
Model F4-
2V, F4-2B,
F4-UV, F4-
VB
Model F4-UF,
F4-4V, F4-4B
Gasoline
215 / 65
50/15
65/28
N-Heptane
215 / 65
50/15
65/20
JP5
150 / 45
37/11
42/14
Kerosene
150 / 45
37/11
42/14
Diesel Fuel
150 / 45
37/11
40/13.5
Ethanol 95%
135 / 40
37/11
23/7
IPA
135 / 40
37/11
43/13
Methanol
115 / 35
37/11
26/8
Methane
100 / 30
40/12
16/5
LPG
100 / 30
40/12
16/5
Paper
33 / 10
20/6
16/5
Polypropylene
16 / 5
18/5
16/5
Hydrogen
100 / 30
33/10
23/7
Ammonia
40 / 12
16/5
Silane
16 / 5
22/7
20/6
1.5.2
Cone of Vision
See Technical Specifications in Appendix A.1