P84030 D
Sheet 2 of 10
WARNING: CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY
BATTERY AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE
THE APPLIED VOLTAGE TO THE STROBES.
WARNING: THE AUDIBLE STROBE APPLIANCES MUST BE FIELD SET TO THE DESIRED TONE AND dBA
SOUND OUTPUT LEVEL BEFORE THEY ARE INSTALLED. THIS IS DONE BY PROPERLY INSERTING JUMPER
PLUGS IN ACCORDANCE WITH THESE INSTRUCTIONS. INCORRECT SETTINGS WILL RESULT IN IMPROPER
PERFORMANCE, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU
AND/OR OTHERS.
Table 2: dBA Sound Output for 24VDC
Description Volume Reverberant Per UL 464 Anechoic dBA
16.0VDC 24.0VDC 33.0VDC 16.0VDC 24.0VDC 33.0VDC
Low 77 81 83 86 90 92
Continuous Horn High 83 87 90 92 95 97
Low 72* 76 79 86 90 92
Code 3 Horn High 79 82 86 92 95 97
Table 2A: dBA Sound Output for 12VDC
Description Volume Reverberant Per UL 464 Anechoic dBA
8.0VDC 12VDC 17.5VDC 8.0VDC 12.0VDC 17.5VDC
Low 72* 76 80 82 84 86
Continuous Horn High 78 83 86 87 89 91
Low 67* 72* 74* 82 84 86
Code 3 Horn High 75 79 82 87 89 91
WARNING: OPERATING THE 24 VOLT NS AUDIBLE APPLIANCES, SET ON “CODE 3 HORN” WITH LOW dBA
AT MINIMUM VOLTAGE DOES NOT MEET THE 75dBA MINIMUM UL REVERBERANT SOUND LEVEL
REQUIRED FOR PUBLIC MODE FIRE PROTECTION SERVICE (NOTED BY * IN TABLE 2). OPERATING THE 12
VOLT NS AUDIBLE APPLIANCES, SET ON “CODE 3 HORN” WITH LOW dBA OR CONTINOUS HORN WITH LOW
dBA AT MINIMUM VOLTAGE (8VDC/VRMS) DOES NOT MEET 75dBA MINIMUM UL REVERBERANT SOUND
LEVEL REQUIRED FOR PUBLIC MODE FIRE PROTECTION SERVICE (NOTED BY * IN TABLE 2A). THESE
SETTINGS ARE ACCEPTABLE ONLY FOR GENERAL SIGNALING (NON-FIRE ALARM) USE. USE THE “HIGH”
dBA SETTING WITH “CODE 3 HORN” FOR PUBLIC MODE SERVICE.
NOTES:
1. Strobes will produce 1 flash per second over the "Regulated Voltage" range.
2. Anechoic dBA is measured on axis in a non-reflective (free field) test room using fast meter response. For peak dBA (measured
with peak meter response), add 5dBA to anechoic values as shown in Table 2. Reverberant dBA is a minimum UL rating based
on sound pressure measurements in a reverberant test room.
3. All models are UL Listed for indoor use with a temperature range of +32°F to +120°F (0°C to +49°C) and maximum humidity of
85% RH.
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