Simplex TrueAlert 4903 User Manual

5
Current and Sound Pressure Measurements
Refer to Table 3 for current rating information.
Table 3. TrueAlert Ceiling-Mount A/V Units – Current Rating Chart
Candela Input (Vrms) In-Rush (V mA
)
Peak (mA) Nominal Avg. (mA rms)
17 107
24 93
15
31
210 210
91
17 253
24 194
75
31
400 400
169
17 337
24 238
High Volume
Setting
via
Addressable
Controller
(See Note 3)
110
31
520 520
190
17 102
24 88
15
31
210 210
83
17 248
24 189
75
31
400 400
161
17 332
24 233
Low Volume
Setting
via
Addressable
Controller
(See Note 3)
110
31
520 520
182
Supervision Current: 1 TrueAlert Unit Load. Current is measured with the horn steady on.
Refer to Table 4 for sound pressure measurements at high and low volume settings.
Table 4. TrueAlert Ceiling-Mount A/V Units – Sound Pressure Level Measurements
Sound Pressure Level
Measurement (dBA)
Voltage
(Vrms
)
Horn
Mode
(See Note 1
)
Reverberant Room
at Ten Feet Per UL464
(See Note 2)
Steady 84.6
Coded 80.6
Steady 86.3
Coded 82.4
Steady 88.4
High Volume
Setting
via
Addressable
Controller
(See Note 3)
Coded 84.5
Steady 79.1
Coded 75.5
Steady 81.5
Coded 77.2
Steady 84.3
Low Volume
Setting
via
Addressable
Controller
(See Note 3)
Coded 79.2
Notes:
1. The coded category includes both Temporal and March Time cadences.
2. Reverberant
dBA measurements are a minimum UL rating based on sound power level measurements made in UL’s reverberant test chamber.
3. High and low volume settings are configured with DIP Switch SW4 on the TrueAlert Addressable Controller.
24
(Nominal)
31
(Maximum)
17
(
Minimum
)
21
(Nominal)
31
(Maximum)
17
(
Minimum
)
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Simplex TrueAlert 4903 Specifications

General

Brand	Simplex
Model	TrueAlert 4903
Category	Fire Alarms
Language	English