2
Contents:
Features overview 1
Approvals 1
Safety information 2
Electrical Information 2
Tone Information 3
Fitting Information 3
Dimensional Drawing 3
In the Box 4
Features description 5
Wiring loom Information 6
Software description 7
Typical Installation diagram 7
Description of Positive and Negative HRT detection 8
Wiring a horn bypass relay 8
Wiring day and night volume switching 9
Wire size selection matrix 9
Fault codes and Troubleshooting 10
Safety Information:
Sirens are produced in 12 and 24 Volt versions. Ensure that you have the correct version for your
installation.
A suitable fuse and holder is provided with the siren amplifier wiring loom where bought.
Otherwise the recommended fuses are: 15A fuse – 12V version and 7.5A fuse – 24V version.
The Siren amplifier should be installed by an electrically competent person in accordance with
the fitting instructions.
Any wiring to or from the siren should be sufficient to carry the load, loads are given on page 6,
there is also a wire size selection matrix on page 9 which may aid this.
Sirens may get hot in use and they should be sited where this will not cause any hazards.
Consideration should be given to allowing air flow over the amplifier.
This equipment generates high levels of sound which may be detrimental to hearing. Care
should be taken during installation and testing so as to avoid endangering yourself or others.
Use of this equipment does not guarantee right of way over other road users and may not
always be heard by them. It should be operated only by trained and competent personnel.
Electrical Information:
Operating Voltage range 12V model: 11V – 16V
Operating Voltage range 24V model: 22V – 32V
Speaker requirements: 11 Ohm impedance, 100W
rms
loudspeaker
Standby current with power on < 20mA
Standby current without power on < 1mA
(Current consumption due to feeds on the input lines, such as the horn)
Maximum operating current: 10A
Ambient operating temperature range: - 30oC to + 60oC