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APPENDIX A
[Factory Mutual Research (FMR) Approval Description]
THE FOLLOWING ITEMS, FUNCTIONS AND OPTIONS DESCRIBE THE FMR APPROVAL:
• Explosion-proof for Class I, Div. 1, Groups B, C and D (T4A) Hazardous (Classified) Locations per FM 3615.
• Dust-ignition proof for Class II/III, Div. 1, Groups E, F and G (T4A) Hazardous (Classified) Locations per FM 3615.
• Non-incendive for Class I, Div. 2, Groups A, B, C and D (T3C) Hazardous (Classified) locations per FM 3611.
• Suitable for Class II/III, Div. 2, Groups F and G (T3C) Hazardous (Classified) locations per FM 3611.
• Enclosure rating NEMA Type 4X per NEMA 250.
• Ambient Temperature Limits:
–40°F to +167°F (–40°C to +75°C).
• Automatic Fire Alarm Signaling Performance verified per FM 3260.
RESPONSE CHARACTERISTICS:
Fuel
Size
Distance
Average Response Time
(feet)
(seconds)
Gasoline
1 x 1 foot
100
6.0
Gasoline
1 x 1 foot
50
3.8
Diesel**
1 x 1 foot
70
7.4
Methanol
1 x 1 foot
70
9.7
Methane
30 inch plume
65
2.4
Methane
30 inch plume
55
0.8
JP-5**
2 x 2 foot
100
5.7
** 10 second pre-burn from ignition.
Medium Sensitivity
Fuel
Size
Distance Average Response Time
(feet)
(seconds)
Gasoline
1 x 1 foot
210*
8.4
Gasoline
1 x 1 foot
100
1.4
Diesel**
1 x 1 foot
150*
9.6
Methanol
1 x 1 foot
150*
5.7
Methane
30 inch plume
100
2.5
JP-5**
2 x 2 foot
210*
8.5
JP-5**
2 x 2 foot
100
2.6
Office
18” x 16” x 10”
100
4.5
Paper 0.5 lb.
Corrugated
18” x 36”
100
14.8
Panel
* Outdoor test condition.
** 10 second pre-burn from ignition.
Very High Sensitivity