System Sensor P2R Installation And Maintenance Instructions page 2

CANDELA SELECTION
Adjust the slide switch on the rear of the product to the desired candela set-
ting in the small window on the front of the unit. All products meet the light
output profiles specified in the appropriate UL Standards. See Figures 1-3.
Use Table 1 to determine the current draw for each candela setting. For K
series products used outdoors at low temperatures, listed candela ratings must
be reduced in accordance with Table 2.
NOTE: SpectrAlert products set at 15 and 15/75 candela automatically work
on either 12V or 24V power supplies. The products are not listed for 12V op-
erating voltages when set to any other candela settings. For 4-Wire products,
total current draw may be determined by adding current draw for the specific
candela selection and the current draw for the specific horn selection use
Table 1 and Table 3.
FIGURE 1. LIGHT OUTPUT - VERTICAL DISPERSION, CEILING TO WALLS
TO FLOOR
Percent of
Degrees*
Rating
0 100
5-25 90
30-45 75
50 55
60 45
65 35
70 35
75 30
80 30
85 25
90 25
Figures 1-3 list the minimum light output requirements per UL1971.
FIGURE 2. LIGHT OUTPUT -
HORIZONTAL DISPERSION
FIGURE 3. LIGHT OUTPUT - VERTICAL DISPERSION, WALL TO FLOOR
This is generated text for figtxt.
*Tolerance of ±1 degree is permitted.
TABLE 1. STROBE CURRENT DRAW (mA) FOR S, SC, P4 & PC4 SERIES:
Standard Candela Range
High Candela Range
TABLE 2. CANDELA DERATING:
HORN SELECTION
Turn the rotary switch on the back of the product to the desired setting. For
Percent of
Degrees*
horn and 4-wire horn/strobe products, the current draw for each setting is
Rating
listed in Table 3. For 2-wire horn/strobe products (P2 series), current draws
0 100
are listed in Tables 4 and 5. The sound output measurement for each horn
5-25 90
setting is shown in Table 6.
30-45 75
TABLE 3. HORN CURRENT DRAW (mA) FOR H, P4 & PC4 SERIES:
50 55
55 45
Pos
60 40
65 35
1
70 35
2
75 30
3
80 30
4
85 25
5
90 25
6
Compound 45
24
7
to the right
8
Compound 45
24
9
to the right
NOTE: In positions 7, 8, and 9, temporal coding must be provided by the NAC.
If the NAC voltage is held constant, the horn output will remain constantly on.
Percent of
Positions 7, 8, and 9 are not available on 2-wire horn/strobe products.
Degrees*
Rating
0 100
5-30 90
35 65
40 46
45 34
50 27
55 22
60 18
65 16
70 15
75 13
80 12
85 12
90 12
2
Candela
15
15/75
30
75
95
110
115
135
150
177
185
Listed Candela
(K Series Outdoor Applications Only)
15
15/75
30
75
95
110
115
135
150
177
185
8–17.5 Volts
Sound Pattern dA Out
DC
Temporal High 57
Temporal Medium 44
Temporal Low 38
Non-temporal High 57
Non-temporal Medium 42
Non-temporal Low 41
Coded High 57
Coded Medium 44
Coded Low 40
8–17.5 Volts 16–33 Volts
DC FWR DC FWR
123 128 66 71
142 148 77 81
NA NA 94 96
NA NA 158 153
NA NA 181 176
NA NA 202 195
NA NA 210 205
NA NA 228 207
NA NA 246 220
NA NA 281 251
NA NA 286 258
Candela rating at –40°F
Do not use below 32°F
44
70
110
115
135
150
177
185
16–33 Volts
FWR DC FWR
55 69 75
49 58 69
44 44 48
56 69 75
50 60 69
44 50 50
55 69 75
51 56 69
46 52 50
I56-2769-020R
06-10