24
Technical data
en
Alarm response times of Dräger Flame 2570
Alarm response times for a standard fire are as follows:
7.4.2
Other fuels
The flame detector reacts to other types of fire as follows:
The baseline fire refers to n-heptane 0.1 m
2
(1 ft
2
) and is defined
as 100% sensitivity.
For liquid fire – standard pan fire, size: 0.1 m
2
(1 ft
2
).
For gas flame – plume fire 0.75 m (30“) high, 0.25 m (10“) wide.
Maximum response time: 10 sec.
Detection distances of Dräger Flame 2000
Sensitivity level
Response time
in seconds
Detection distance
in meters (feet)
1: 20
1
20 (66)
2: 40 (default)
1
40 (132)
3: 60
1
60 (200)
4: 90
10
90 (300)
Type of fuel
Percentage of base-
line fire value at
respective
detection distance
Max. distance when
sensitivity level 2
is set
in meters (feet)
Gasoline
100%
15 (50)
Liquefied petroleum
gas (LPG, gas flame)
86%
13 (43)
Jet fuel (JP5)
74%
11 (37)
Kerosene
74%
11 (37)
Diesel fuel
74%
11 (37)
Polypropylene
74%
11 (37)
Methane (gas flame)
59%
9 (29.5)
Alcohol 95%
50%
7.5 (25)
Isopropyl alcohol
(IPA)
50%
7.5 (25)
Methanol
50%
7.5 (25)
Paper
40%
6 (20)
