Whelen 295HFS4 - Manual (Page 6)

Page 6
cle’s horn has been wired to the HORN RING input). The first tap
produces a WAIL tone (a steady rise and fall tone). A second tap
produces a YELP tone (a fast rise and fall tone.) A
third tap produces a PIERCER™ tone (an extremely fast rise and
fall tone). The next tap returns the siren to a wail tone and the
cycle repeats itself. Two quick successive taps will stop the siren.
With the Rotary Switch in this Position:
• Pressing the MAN button will result in the HF cycle as described
above.
• Activating the HORN RING input will result in the HF cycle as
described above.
• Activating the AUX ENABLE input will start the HF cycle.
WAIL (Wail Tone) - When the rotary knob is in the WAIL position,
a steady, rise and fall tone (wail) is produced.
With the Rotary Switch in this Position:
• Pressing the MAN button will change the siren tone to a yelp
pattern. (a fast rise and fall tone) Pressing the MAN button a
second time returns it back to a wail tone.
• Activating the HORN RING input will change the siren tone to a
yelp pattern. (a fast rise and fall tone) Activating the HORN
RING input again returns it back to a wail tone.
• Activating the AUX ENABLE input has no effect.
YELP (Yelp Tone) - When the rotary knob is in the YELP
position, a fast, rise and fall tone is produced.
With the Rotary Switch in this Position:
• Pressing the MAN button will result in the AIRHORN tone until
the MAN button is released.
• Pressing the HORN RING button will result in the AIRHORN
tone until the HORN RING button is released.
• Activating the AUX ENABLE input has no effect.
T3 (Piercer TM Tone) When the rotary knob is in the T3
position, an extremely fast, rise and fall tone is produced. May be
used for HI / LO and auto sequence in some applications.
With the Rotary Switch in this Position:
• Pressing the MAN button will result in the AIRHORN tone until
the MAN button is released.
• Pressing the HORN RING button will result in the AIRHORN
tone until the HORN RING button is released.
• Activating the AUX ENABLE will have no effect.
Rotary Switch Operations
RAD (Radio Repeat) - When the rotary knob is in the RAD posi-
tion, any signal that is received by the vehicle’s two-way radio will
be simultaneously broadcast over the vehicle’s loudspeaker (unit
must be connected to the two-way radio as outlined in this man-
ual).
With the Rotary Switch in this Position:
• Pressing the MAN button will result in SI TEST®.
• Activating the HORN RING input results in the AIRHORN tone
until the HORN RING input is released.
• Activating the AUX ENABLE input has no effect.
PA (Public Address) - When the rotary switch is in this position
the siren is in a standby state where no tones have been
activated, but is waiting for another action to be taken by the oper-
ator. This position is often the best choice when public address is
required.
With the Rotary Switch in this Position:
• Pressing the MAN button will result in the AIRHORN tone until
the MAN switch is released.
• Activating the HORN RING input will result in the AIRHORN
tone until the HORN RING input is released.
• Activating the AUX ENABLE input will result in a repeating
WAIL tone.
MAN (Manual Siren) - When the rotary switch is in this position
the siren is in a standby state where no tones have been
activated, but is waiting for another action to be taken by the oper-
ator. This position is often the best choice when manual operation
of the siren is desired.
With the Rotary Switch in this Position:
• Pressing the MAN switch will result in a WAIL tone ramping up
to peak frequency and stopping when the MAN switch is
released.
• Activating the HORN RING input will result in a WAIL tone
ramping up to the peek frequency and stopping when the
HORN RING input is released.
• Activating the AUX enable input will result in a repeating WAIL
tone.
HF (Hands-Free Operation) - When the rotary knob is in the HF
position, the siren functions are placed in a stand-by mode. Siren
tones are activated by a single tap on the MAN button or a single
tap on the vehicle’s steering wheel horn ring (if the vehi-
AIR HORN. . . . . . . . . .COMPOSITE . . . . . . . . . . . . . . CONSTANT
HI/LOW (OPTIONAL) .550 TO 650 Hz . . . . . . . . . . . . . 60 CYCLES PER MIN.
OUTPUT VOLTAGE @ 15 VDC @ 11 OHMS . . . . . . . 32 V RMS MAX.
OUTPUT POWER @ 15 VDC @ 11 OHMS . . . . . . . . . 105 WATTS MAX.
OUTPUT POWER @ 15 VDC @ 5.5 OHMS . . . . . . . . 185 WATTS MAX.
AUDIO (SINE WAVE)
AUDIO BANDWIDTH @ 25 WATTS. . . . . . . . . . . . . . . 300 Hz TO 10 KHz ±3db
DISTORTION @ 25 WATTS @ 1 KHz . . . . . . . . . . . . . 1% MAX.
OUTPUT VOLTAGE @ 15 VDC @ 11 OHMS . . . . . . . 24 VRMS MAX.
OUTPUT POWER @ 15 VDC @ 11 OHMS . . . . . . . . . 50 WATTS
RADIO INPUT LEVEL @ R44 MAX. @24 VRMS . . . . +10db ±3db
SI-TEST® - RADIO/MANUAL BUTTON . . . . . . . . . . . . FREQ. - 18 KHz
295HFS4 SPECIFICATIONS
INPUT VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5 VDC
INPUT CURRENT @15 VDC @ 5.5 OHMS . . . . . . . . . 16 AMPS MAX.
INPUT FUSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 AMPS
SPEAKER IMPEDANCE . . . . . . . . . . . . . . . . . . . . . . . 5.5 OHMS MIN.
OPERATING TEMPERATURE. . . . . . . . . . . . . . . . . . . -30° C. TO +60° C.
STORAGE TEMPERATURE . . . . . . . . . . . . . . . . . . . . -40° C. TO +70° C.
HUMIDITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99% (NON CONDENSING)
SIREN / SQUARE WAVE
TONES SIREN FREQUENCY SWEEP RATE
WAIL . . . . . . . . . . . . . . 800 TO 1600 Hz. . . . . . . . . . . . .12 CYCLES PER MIN.
YELP. . . . . . . . . . . . . . 800 TO 1600 Hz. . . . . . . . . . . . .180 CYCLES PER MIN.
PIERCER . . . . . . . . . . 800 TO 1600 Hz. . . . . . . . . . . . .800 CYCLES PER MIN.