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fire alarm system >> Apollo - UK ...................................................................................................................................................................................................................................................................
Features
XP95 Intelligent Smoke & Heat Detectors The XP95 range of intelligent fire detectors is advanced in design, improved in performance and has unique features that benefit the installer and end user. Apollo has always used an open, digital protocol which has remained basically unchanged since its inception in 1986.An open protocol allows freedom of choice for the fire system specified, installer and end user. A system using a digital protocol is also much less susceptible to corruption than an analogue protocol and is therefore often preferred in a system which is life critical. XP95 detectors have been carefully researched and developed by the Apollo design team and the range has undergone rigorous testing to ensure that it meets not only European and other standards but also the demands of today’s high technology environments. A unique, patented address mechanism, the EXPERT card, ensures that the address data is stored in the base while keeping the base free of electronic parts that could be damaged during installation. Apollo’s XP95 intelligent system is compatible with a wide range of control panels. For more information on compatible panels, please refer to Apollo publication PP1010 or visit Ionization Smoke Detector The air in the dual chambers of the XP95
ionization smoke detector is
irradiated to produce ions that travel to the positive and negative
electrodes and hence create a current flow in the chambers. Smoke
entering the outer chamber causes a drop in the current flow
XP95 Optical Detector
The XP95 optical smoke detector uses an internal pulsing LED and a
photo-diode at an obtuse angle. In clear air conditions th XP95 Heat Detector
XP95 Multisensor Detector The XP95 Multisensor detector combines inputs from optical and heat sensors and processes them using a sophisticated algorithm. It is designed to be sensitive to a wide range of fires and may be used in place of an ionization detector in many instances. The detector’s construction is similar to that of the optical detector but uses a different lid and optical moldings to accommodate the thermostat temperature sensor. XP95 Beam Detector
The XP95 beam detector has been designed to protect large, open spaces
such as
XP95 Flame Detector The XP95 flame detector is designed for use in areas where flaming fires may be expected and is sensitive to low frequency, flickering infra-red radiation emitted by flames during combustion. The XP95 flame detector is loop-powered and requires no external supply. It communicates with the control panel using either the XP95 or Discovery open, digital protocol. Intrinsically Safe Detector
XP95 Intrinsically Safe (IS) detectors include all the benefits of the
standard XP95 range,
Marine&Sounders XP95 detectors, manual call points and short circuit isolators are approved by a number of marine classification societies. These include the American Bureau of Shipping (ABS), Bureau Verities (BV),Det Norske Verities (DNV), GermanischerLloyd, Lloyd’s Register of Shipping, and the Maritime and Coastguard Agency (MCA). There are two types of loop-powered sounder available, one ceiling-mounted for fitting with detectors; one stand-alone.
XP95 Manual Call Point When activated, the XP95 manual call point not only interrupts the polling cycle to indicate to the control panel that it has been operated, but also reports its address. Thus an alarm and its condition can be reported in less that 0.2 seconds. Interfaces for Intelligent Systems
A comprehensive range of interface units is available. XP95 Isolator
Specifications
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and an
increase in the voltage measured at the junction between the outer and
inner chambers. The analogue voltage signal produced in the sensing
chamber is converted to a digital signal by the electronic circuitry and
transmitted to the control equipment on interrogation. The
micro-processor in the control equipment then compares the signal
with the stored data and initiates a pre-alarm or fire alarm as smoke
density increases. When the equipment determines that a fire condition
exists, it instructs the detector to switch on its indicator LED and the
pre-planned alarm routine is initiated. 
e
photo-diode in the XP95 detector receives no light from the LED and
produces a corresponding analogue signal. The signal increases when
smoke enters the chamber and light is scattered onto the photo-diode.
The signal is processed by the electronic circuitry and transmitted to
the control equipment in exactly the same way as in the case of the
ionization smoke detector. The optical smoke detector is
externally identical to the ionization detector but is distinguished by
having a clear indicator LED which emits red light when the detector is
in alarm.
The
XP95 heat detector is distinguishable from the smoke detectors by its
low airflow resistance case which allows good contact between the
sensing thermostat and the surrounding air. The device monitors
temperature by using a single thermostat network which provides a
voltage output proportional to the external air temperature. The
voltage signal is processed and transmitted to the control
equipment in exactly the same way as in the case of the ionization
smoke detector. A heat detector for use in ambient safe temperatures of
up to 50°C and which reaches the alarm level at 90°C is also available.
museums,
churches, warehouses and factories. It consists of three main parts: the
transmitter, which projects a beam of infra-red light, the receiver,
which registers the light and produces an electrical signal, and the
interface, which processes the signal and generates alarm or fault
signals. The XP95 beam detector is loop-powered and requires no separate
24V supply, eliminating the need for additional equipment and saving
installation time.
but
are developed specifically for use in hazardous areas. This range
includes ionization and optical smoke detectors, heat detectors and
manual call points, BASEEFA approved to E EX ia IIC T5. XP95 IS
detectors, manual call points and short circuit isolators are approved
by
a number of marine classification societies. These include the American
Bureau of Shipping (ABS), Bureau Verities (BV), Det Norske Verities (DNV),
Germanischer Lloyd, Lloyd’s Register of Shipping, and the Maritime
and Coastguard Agency (MCA).
Isolators
are designed to protect the XP95 loop in the event of a short circuit
fault. They divide a loop of fire detectors and ancillary devices into
groups of 20 as a use, so that, in the event of a short circuit, no more
that 20 devices will be inoperable. The XP95 isolator has particularly
low non-isolating resistance. The XP95 20D Isolating base senses and
isolates short circuit faults on XP95 loops and spurs. The base is loop
powered, polarity sensitive and accepts the patented XPERT card to set
the associated device address.