Candela Selection for P, S, PC, & SC series models
For strobe candela selection, adjust the slide switch located
on the rear of the product while watching the viewing win-
dow under the reflector on the front of the unit. Use Table
1 to determine current draw at various candela settings.
Table 2 can be used to derate the candela rating for low
temperature operation. Tables 3 & 4 can be used to deter-
mine strobe light output at various viewing angles.
Note: SpectrAlert products set at 15 and 15/75 candela au-
tomatically work on either 12V or 24V power supplies. The
products are not listed for 12V operating voltages when set
to any other candela settings.
Table 1. Current Draw (mA)
Candela
Strobe
15
(Standard
15/75
Candela
30
75
Range)
95
110
115
Strobe
135
(High
150
177
Candela
185
Range)
Table 2.
Listed candela rating
15 cd
15/75 cd
30 cd
75 cd
95 cd
110 cd
115 cd
135 cd
150 cd
177 cd
185 cd
Note: The 15, 15/75, and 30 cd settings are not intended
for use at temperatures below 32°F.
Table 3. Horizontal Plane Light Distribution for
Wall and Ceiling Applications
Horizontal Angle
0
45
90
Table 4. Vertical Plane Light Distribution
for Wall Applications
Vertical Angle
0
45
90
D690-03-00
8–17.5 Volts
16–33 Volts
DC
FWR
DC
123
128
66
142
148
77
NA
NA
94
NA
NA
158
NA
NA
181
NA
NA
202
NA
NA
210
NA
NA
228
NA
NA
246
NA
NA
281
NA
NA
286
Candela rating at –40°F
See Note
9.8
16.2
29.7
41.4
44.6
49.5
81.4
72.2
% of rated light output
100
75
25
% of rated light output
100
34
12
Horn Selection for P, PC, & H series models
Horn setting selection is accomplished by using the rotary
switch on the back of the product (see Table 5). The current
draw for various horn settings for horn and 4-wire horn/
strobe products is listed in Table 6. The current draw for
various horn and candela settings for 2-wire horn/strobe
products (P2 series) is shown in Table 7 & 8. The sound
measurements for various horn settings are shown in Table
9 for horn and horn/strobe products.
Table 5. Horn Patterns
Setting
1
Temporal horn
2
Temporal horn
3
Temporal horn
4
Normal horn
FWR
5
Normal horn
71
6
Normal horn
81
7
Externally coded
96
8
Externally coded
153
9
Externally coded
176
Note: In positions 7, 8, and 9, temporal coding must be
195
205
provided by the NAC. If the NAC voltage is held constant,
207
the horn output will remain constantly on. Positions 7, 8,
220
and 9 are not available on 2-wire horn/strobe products.
251
258
Table 6. Horn Current Draw (mA)
Sound Pattern
Temporal
Temporal
Temporal
Non-temporal
Non-temporal
Non-temporal
Coded
Coded
Coded
Note: Ceiling products have their maximum brightness on
the two axes shown below.
2
Repetition Rate
High
Medium
Low
High
Medium
Low
High
Medium
Low
8–17.5 Volts
dB
DC
FWR
High
57
55
Medium
44
49
Low
38
44
High
57
56
Medium
42
50
Low
41
44
High
57
55
Medium
44
51
Low
40
46
dB Out
16–33 Volts
DC
FWR
69
75
58
69
44
48
69
75
60
69
50
50
69
75
56
69
52
50
A0351-00
I56-2769-003R
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