Detection Are

The standard flame and sensing area
- Test flame : N-Heptane
- Size of flame : 70cm× 70cm
- Test distance : 1.4 times as far as nominal sensing distance 
   (UV/IR:34m IR3:70m)


The special feature of real sensing area
1. Safety design : nominal angle is 90°
    (Max. angle of normal type is 120°, explosion-proof type is 100°)
2. Special feature of performance by angle
    Maximum distance at the front (0°).
3. Special feature of setting sensitivity.
    If setting is more susceptible, then the angle is more wide, but the immunity is decrease.
 
 

Design Table

The area of sensing when install the sensor right under the ceiling



The area of sensing when install the sensor on the corner/wall



 25m design Table

Installing
position
Ceiling
(Perpendicular
downward)
Corner
(45° incline)
Installing
height
X [m]
A [m2]
X [m]
A [m2]
1
1.4
2
17.7
312
2
2.8
8
17.6
311
3
4.2
18
17.5
308
4
5.7
32
17.4
305
5
7.1
50
17.3
300
6
8.5
72
17.2
295
7
9.9
98
17.0
288
8
11.3
128
16.7
281
9
12.7
162
16.5
272
10
14.1
200
16.2
263
11
15.6
242
15.9
252
12
17.0
288
15.5
241
13
18.4
338
15.1
228
14
19.8
392
14.6
215
15
21.2
450
14.1
200
16
22.6
512
13.6
185
17
24.0
578
13.0
168
18
24.5
602
12.3
151
19
23.0
528
11.5
132
20
21.2
450
1.6
113
21
19.2
368
9.6
92
22
16.8
282
8.4
70
23
13.9
192
6.9
48
24
9.9
98
4.9
25
25
0.0
0
0.0
0
 
Design Table
30m design table

Installing
position
Ceiling
(Perpendicular
downward)
Corner
(45° incline)
Installing
height
X [m]
A [m2]
X [m]
A [m2]
1
1.7
3
21.2
450
2
3.4
11
21.2
448
3
5.1
26
21.1
446
4
6.7
345
21.0
442
5
8.4
71
20.9
438
6
10.1
102
20.8
432
7
11.8
139
20.6
426
8
13.5
182
20.4
418
9
15.2
230
20.2
410
10
16.9
284
20.0
400
11
18.5
344
19.7
390
12
20.2
408
19.4
378
13
21.9
480
19.1
366
14
23.6
557
18.8
352
15
25.3
639
18.4
338
16
27.0
727
17.9
322
17
28.7
821
17.5
306
18
30.3
920
17.0
288
19
32.0
1025
16.4
270
20
31.6
1000
15.8
250
21
30.3
918
15.1
230
22
28.8
832
14.4
208
23
27.2
742
13.6
186
24
25.5
648
12.7
162
25
23.5
550
11.7
138
26
21.2
448
10.6
112
27
18.5
342
9.2
86
28
15.2
232
7.6
58
29
10.9
118
5.4
30
30
0.0
0

0.0
0
 
50m design table

Installing
position
Ceiling
(Perpendicular
downward)
Corner
(45° incline)
Installing
height
X [m]
A [m2]
X [m]
A [m2]
1
1.4
2
35.3
1250
2
2.8
8
35.3
1248
3
4.2
18
35.3
1246
4
5.7
32
35.2
1242
5
7.1
50
35.2
1238
6
8.5
72
35.1
1232
7
9.9
98
35.0
1226
8
11.3
128
34.9
1218
9
12.7
162
34.8
1210
10
14.1
200
34.6
1200
11
15.6
242
34.5
1190
12
17.0
288
34.3
1178
13
18.4
338
34.1
1166
14
19.8
392
33.9
1152
15
21.2
450
33.7
1138
16
22.6
512
33.5
1122
17
24.0
578
33.2
1106
18
24.5
602
33.0
1088
19
26.9
722
32.7
1070
20
28.3
800
32.4
1050
21
29.7
882
32.1
1030
22
31.1
968
31.7
1008
23
32.5
1058
31.4
986
24
33.9
1152
31.0
962
25
35.4
1250
30.6
938
26
36.8
1352
30.2
912
27
38.2
1458
29.8
885
28
39.6
1568
29.3
858
29
41.0
1682
28.8
830
30
42.4
1800
28.3
800
31
43.8
1922
27.7
770
32
45.3
2048
27.2
738
33
46.7
2178
26.6
706
34
48.1
2312
25.9
672
35
49.5
2450
25.2
638
36
49.1
2408
24.5
602
37
47.6
2262
23.8
566
38
46.0
2112
23.0
528
39
44.2
1958
22.1
490
40
42.4
1800
21.2
450
41
40.5
1638
20.2
410
42
38.4
1482
19.2
368
43
36.1
1302
18.0
326
44
33.6
1128
16.8
282
45
30.8
950
15.4
238
46
27.7
768
13.9
192
47
24.1
582
12.1
146
48
19.8
392
9.9
98
49
14.1
198
7.0
50
50
0.0
0
0.0
0