System Sensor SpectrAlert Series Installation And Maintenance Instructions page 2

Current Draws
Strobe:
AVERAGE CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
169 220 140 191 115 174
Horn/Strobe:
High/Low Temp
Tone Volume /Non
Electro- High Temp
mech. Non
Low Temp
Non
3000 Hz High
Temp
Interrupt.
Non
Low
Temp
Non
Sound Output Guide
Temporal Low Volume
High Volume
Non- Low Volume
Temporal
High Volume
Horn Selections
Horns are factory set for high volume, temporal code, and electromechan-
ical tone.
Tones:
Two tones may be selected using the jumper plugs located on
the printed circuit board. With the jumper offset, the tone is the
Electromechanical sound. With the jumper in place, the tone is
a 3 kHz sound.
Temp/Non-Temp:
Temporal coding or Non-Temporal coding can be selected using
the jumper plugs located on the printed circuit board. With the
jumper offset, the tone pattern is the Temporal Coded Signal.
With the jumper in place, the Non-Temporal code (continuous)
tone is active.
System Operation: Non-Synchronized Devices
Figure 1A. Any combination of models powered by a 2-wire circuit:
HORN/STROBE
(+)
(+)
(–)
(–)
D900-25-00
PEAK CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
460 560 450 570 420 620
AVERAGE CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
188 241 165 209 144 200
186 238 163 211 145 202
180 232 153 204 132 189
181 232 154 204 132 190
193 246 168 214 152 207
188 242 167 217 150 210
183 234 157 206 136 193
182 232 156 205 137 195
UL Reverberant Room dBA@ volts DC
Electromechanical
3000 Hz Interrupted
Electromechanical
3000 Hz Interrupted
Electromechanical
3000 Hz Interrupted
Electromechanical
3000 Hz Interrupted
HORN/STROBE STROBE ONLY
(+)
(+)
(–)
(–)
IN RUSH CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
190 230 220 290 290 370
20 24 30
75 75 79
75 79 79
82 82 82
82 85 85
79 82 85
82 82 85
85 88 88
88 88 88
NOTE: When powered from FWR supply, the tones will be modulated
(turned on and off) by 120Hz, causing the tones to sound dif-
ferent from DC power.
High/Low Volume:
High or low volume may be selected using the jumper plugs
located on the printed circuit board. With the jumper in place,
the sound output level is the high level. With the jumper offset,
the sound output level is the low level. The low volume setting
must NOT be used when the device is powered from a 12-volt
panel.
NOTE: Always power down devices before setting jumpers.
Figure 1B: Horns and strobes powered in tandem:
NOTE: Supply power must be continuous for proper operation.
E
O
L
TO NEXT
(–)
DEVICE OR
EOL
(+)
FACTORY INSTALLED
JUMPERS
2
Anechoic dBA @10 ft./volts DC
20 24
94 96
94 96
100 101
100 101
94 96
94 96
100 101
100 101
TANDEM OPERATION
HORN/STROBE COMBO
(–)
(+) (+)
(–)
30
98
98
102
102
98
98
102
102
FROM:
FACP, MODULE
OR PREVIOUS
DEVICE
I56-0981-000R