Sensors and other Analogue Addressable Devices
XP95 Ionisation Smoke Detector 
The air in the duel chambers of the XP95 ionisation 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 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 eletronic 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 of fire alarm as smoke density increase. When the equipment determines that a fire condititions exists, it instructs the detector to switch on its indicator LED and the pre-planned alarm routine is initialed
XP95 Optical Detector
The XP95 optical smoke detector uses an internal pulsing LED and a photo-diode at an abtuse angle. In clear air conditions the photo-dioxide 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 top the control equipment in exactly the same way as the case of the ionisation smoke detector. The optical smoke detector is externally identical to the ionisation detector but is distinguished by having a clear indicator LED which emits red light when the detector is in alarm.
55000-600
XP95 Heat Detector
The XP95 heat detector is distinguishable from the smoke detectors by its low air-flow resistence case which allows good contact between the sensing thermistor and the surrounding air. The device monitors temperature by using a single thermistor network which provides a voltage output propertional to the external air temperture. The voltage output signal is processed and tranmissed to the control equipment in exactly the same way as in the case of the ionisation smoke detector. A heat detector for use in ambient safe temperatures of up to 50 C and which reaches the alrm level at 90 C is also available.
55000-400 (standard)
55000-401 (high temperature)
XP95 Multisensor Detector
The XP95 Multisensor detector combines input from optical and heat sensors and processes them using a sophisticated algorithum. It is designed to be sentive to a wide range of fires and may be used in place of an ionisation detector in many instances. The detector's construction is similar to that of the optical detector but uses a different lid and optical mouldings to accommodate the thermistor temperature sensor.
55000-885
XP95 Beam Detector
The XP95 beam detector has been designed to protect large, open spaces such as 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 produces the signal and generates alarms 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.
55000-265
More Information: For more information, please refer to Apollo publications, PP2078.
Sounders
There are two types of loop-powered sounders available, one ceiling-mounted for fitting with detectors; one stand-alone. For more information, please refer to Apollo publications PP2082 for XP95 100dB Loop Sounder or PP2031 for XP95 Loop Sounder.
45681-262 85dB Sounder (sounder only)
45681-262 Sounder for use with isolating base
55000-259 Sounder with white cap
55000-260 Sounder with red cap
55000-261 100dB Loop Sounder
Intrinsically Safe Detector
The XP95 Intrinsically Safe (IS) detectors include all the benefits of the standard XP95 range, but are developed specifically for use in harardous areas. This range includes ionisation and optical smoke detectors, heat detectors and manual call points, BASEEFA approved to E EX ia IIX T5 ZP95 IS detectors, manual call points and short circuit isolators are approved by a number of marine American Bureau of Shipping (ABS), Bureau Veritas (BV), Det Norske Veritas (DNV), Germanischer Lloyd, Lloyd's Register of Coastguard Agency (MCA).
More Information: For more information, please refer to Apollo pubmications PP1094 AND PP1095Marine
XP95 detectors, manual call points and short circuit isolators are approved by a number of Marine American Bureau including Shipping (ABS), Bureau Veritas (BV), Det Norske Veritas (DNV), Germanischer Lloyd, Lloyd's Register of Coastguard Agency (MCA.
More Information: For more information, please refer to Apollo pubmications PP1099.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 alrm and its condition can be reported in less that 0.2 seconds.
55000-905 (surface mounting)
55000-906 (flush mounting)
XP Isolator
Isolators are designed to protect the XP95 loop in the event of a short circuit fault. They divide a loop of five detectors and ancillary devices into groups of 20 devices will be inoperable. The XP95 isolator has particularly low non-isolating resistance. The XP95 20D Isolating base senses and isolates short circut faults on XP95 loops and spurs. The base is loop powered, polarity sensitive and accepts the patented XPERT card to see the assiciated device address.
45681-321
More Information: For more information, please refer to the Apollo publication PP2039.
XP95 Mounting base patented CPERT card
The base has been designed to enable detectors to be plugged in without any need for force and to have a "one-way-only" fit. By means of a unique patented "XPERT card" the address information is held in the base while keeping the base entirely free of electronic parts. This coded plastic card is inserted into the base on commissioning, so that the address remains the same, no matter how often the detector is replaced by similar devices for servicing purposes.
45681-210
Automatic Addressing with the patented XPERT Card
Depending on the combination of pips removed, switches in the detector head are operated to produce the correct address, when the detector head is inserted.
Interface for Intelligent Systems
A comprehensive range of interface units are available.
More Information: See Apollo publication PP2025.XP95 flame detector
The XP95 flame detector is designed for use in areas where flaming fires may be experted 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.
55000-280
More Information: For more information, please refer to Apollo publication PP2111.
