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Nittan - Evolution - Addressable 
The highly advanced Evolution fire system utilises the state of the art Nittan
EV range of sensors and devices each containing their own ASIC.
All of the Evolution smoke, heat and combined smoke and heat sensors
include a unique 360 degree OMNIVIEW LED indicator permitting clear and visible
indication of the sensor's operation from any angle.
The range of EV sensors are 'backwardly compatible' with the STB-4 sensor base,
therefore upgrading of an existing system to an Evolution intelligent system is
a very simple and cost effective operation.
Evolution Advanced uses
expert detection algorithms, combining extremely reliable fire detection
together with a very high degree of protection against unwanted false alarms.
Evolution Advanced fire system is adaptive and will automatically select the
best method to guarantee safe and secure alarms from sensors and loop devices.
Evolution Advanced offers increased EMC immunity which is achieved by the
inclusion of a 'Specific Waveband Pass filter circuit' which is built into the
EV sensor head.
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EV-H Analogue Addressable Heat Sensor |
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• The sensor’s ‘Sensing Detection Principle’ is a combination
rate-of-rise and fixed temperature principle.
• The sensor conforms to EN 54-5:2000, (Heat detectors - point
detectors.).
• The sensor uses a custom designed, application specific integrated
circuit (ASIC) to guarantee
maximum reliability in communications and sensor operation.
• The sensor transmits a continuously varying analogue value which
corresponds to the local air
temperature. This value is interpreted at the CIE as Normal, Fire or
Fault status.
• The sensor is equipped with an OMNIVIEWTM 360o LED indicator and also
has the capability to drive one (1) remote
indicator and one (1) ‘base control’ auxiliary output in order to signal
remote fire alarm nconditions.
• Accidental reverse polarity or faulty loop wiring will not damage the
sensor. |
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EV-PH Analogue Addressable Combined
Photoelectric/Heat Sensor |
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• The heat sensor’s ‘Sensing Detection Principle’ is a
combination rate-of-rise and fixed temperature
principle. The photoelectric sensor’s ‘Sensing Detection Principle’
is a scattered IR light detection
principle.
• The sensor conforms to EN 54-5:2000, (heat detectors - point
detectors.) and EN 54-7:2000,
(photoelectric detectors)
• The sensor uses a custom designed, application specific integrated
circuit (ASIC) to guarantee
maximum reliability in communications and sensor operation.
• The sensor transmits continuously varying analogue values which
correspond to the local temperature and
smoke density in the sensing chamber. These values are processed at
the CIE to determine Normal, Fire or Fault
status.
• The sensor is equipped with an OMNIVIEWTM 360o LED indicator and
also has the capability to drive one (1)
remote indicator and one (1) ‘base control’ auxiliary output in
order to signal remote fire alarm
conditions.
• Accidental reverse polarity or faulty loop wiring will not damage
the sensor. |
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EV-P Analogue Addressable Photoelectric
Smoke Sensor |
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• The sensor’s ‘Sensing Detection Principle’ is a scattered
IR light detection principle .
• The sensor conforms to EN 54-7:2000, (photoelectric
detectors.).
• The sensor uses a custom designed, application specific
integrated circuit (ASIC) to guarantee
maximum reliability in communications and sensor operation.
• The sensor transmits a continuously varying analogue value
which corresponds to the smoke density in
the sensing chamber. This value is interpreted at the CIE as
Normal, Fire or Fault status.
• The sensor is equipped with an OMNIVIEWTM 360o LED indicator
and also has the capability to drive one
(1) remote indicator and one (1) ‘base control’ auxiliary output
in order to signal remote fire alarm
conditions.
• Accidental reverse polarity or faulty loop wiring will not
damage the sensor. |
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EV-DP Analogue Addressable Dual
Wavelength Photoelectric Smoke Sensor |
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• The design of the smoke sensitivity system guarantees
a uniform response behaviour to all combustion
products of early heat-formed flaming and invisible
smouldering fires.
• The sensor’s ‘Sensing Detection Principle’ is a scattered
light detection principle .
• The sensor conforms to EN 54-7:2001, (photoelectric
detectors).
• The sensor uses a custom designed, application specific
integrated circuit (ASIC) to guarantee
maximum reliability in communications and sensor operation.
• The sensor transmits continuously varying analogue values
which correspond to the smoke density in
the sensing chamber. These values are processed at the CIE
to determine Normal, Fire or Fault status.
• The sensor is equipped with an OMNIVIEWTM 360o LED
indicator and also has the capability to drive one
(1) remote indicator and one (1) ‘base control’ auxiliary
output in order to signal remote fire alarm
conditions.
• Accidental reverse polarity or faulty loop wiring will not
damage the sensor. |
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EV-UV Analogue Addressable
Ultraviolet Flame Sensor |
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• The UV sensor is designed to detect ultraviolet
light (wavelength 185 to 260nm) emitted from flames.
• The sensor’s ‘Sensor Detection Principle’ is UV pulse
counting.
• The sensor conforms to EN54-10:2001.
• The sensor uses a custom designed, application
specific integrated circuit (ASIC) to guarantee
maximum reliability in communications and sensor
operation.
• The sensor transmits a continuously varying analogue
value which corresponds to the prescence and
size of a flaming fire. This value is interpreted at the
CIE as Normal, Fire or Fault status.
• The sensor is equipped with an LED indicator and has
the capability to drive one (1) remote indicator.
• Accidental reverse polarity or faulty loop wiring will
not damage the sensor. |
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