Honeywell FS24X Plus User Manual

Honeywell® FS24XPlus™ | User Manual
42
Flame Response Sensitivity
The following table provide FS24XPlus™ response times and distance to various fuels. The relative
ratio among Very High. High, Medium, and Low sensitivities are about 100%, 75%, 50%, and 25%.
FM witness testing included verifying all sensitivities for indoor/outdoor heptane.
The Inverse Square Law is applicable to define the relationship on the radiant power reaching a
detector versus the distance between the detector and the fire. The radiant power reaching a
detector is reduced by a factor of square of the distance between the detector and the fire. For
example, The radiant power reaching a detector is reduced by a factor of 4 if the distance between
the detector and the fire is doubled (e.g., the radiant energy from 30cm by 30cm fire at 60m is
equivalent to that from 15cm by 15cm fire at 30m).
Fuel
FS24XPlus™ 3IR
Target
Sensitivity
Alarm Response
Time
Fire Size Fire Distance
Indoor Outdoor Indoor Outdoor Typical Maximum
Heptane
6 in X 6 in (0.15m
X 0.15m)
12 in X 12 in (0.3m X
0.3m)
90 ft
(27m)
200 ft
(60m)
Very High
5
Seconds
10
Seconds
67 ft
(20m)
150 ft
(45m)
High
45 ft
(13m)
100 ft
(30m)
Medium
22 ft
(6m)
50 ft
(15m)
Low
IPA
6 in X 6 in (0.15m
X 0.15m)
12 in X 12 in (0.3m X
0.3m)
90 ft
(27m)
135 ft
(41m)
Very High
Methane
3/8 in (9.5mm) Dia.
Orifice, 15 in
(0.38m) Plume
3/8 in (9.5mm) Dia.
Orifice, 32 in
(0.81m)Plume
45 ft
(13m)
90 ft
(27m)
Very High
Butane N/A*1
3/8 in (9.5mm) Dia.
Orifice, 32 in (0.81m)
Plume
N/A*1
98 ft
(29m)
Very High
Ethanol N/A*1
12 in X 12 in (0.3m X
0.3m)
N/A*1
135 ft
(41m)
Very High
Methanol N/A*1
12 in X 12 in (0.3m X
0.3m)
N/A*1
105 ft
(32m)
Very High
Hydrogen N/A*1
3/8 in (9.5mm) Dia.
Orifice, 32 in (0.81m)
Plume
N/A*1
61 ft
(18m)
Very High
Diesel N/A*1
12 in X 12 in (0.3m X
0.3m)
N/A*1
150 ft
(45m)
Very High
Kerosene N/A*1
12 in X 12 in (0.3m X
0.3m)
N/A*1
75 ft
(22m)
Very High
JP-4 N/A*1
6 in X 6 in (0.15m X
0.15m)
N/A*1
100 ft
(30m)
Very High
Note: *1: Indoor testing not FM witnessed.

Honeywell FS24X Plus Specifications

General

Brand	Honeywell
Model	FS24X Plus
Category	Measuring Instruments
Language	English