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Apollo Isolator XP95 and Discovery 55000-720APO

Apollo Isolator XP95 and Discovery 55000-720APOThe Isolator is placed at intervals on the loop and ensures that in the case of a short circuit only the section between the isolators will be affected. When the short circuit is removed the isolators automatically restore power and data to the isolated section.Key Features Detects wiring short-circuitsMinimises disruption from short-circuitsAutomatic de-isolation on the short-circuit removalUp to 20 detectors or their equivalent load may be installed between isolators

GBP 18.46

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Apollo Discovery Marine Isolator 55000-721MAR

Apollo Discovery Marine Isolator 55000-721MARThe Discovery Marine Isolator is placed at intervals on the loop and ensures that in the case of a short-circuit only the section between the isolators will be affected. When the short-circuit is removed the isolators automatically restore power and data to the isolated section.Key FeaturesDetects wiring short-circuits using patented technologyMinimises disruption from short-circuitsAutomatic de-isolation on short-circuit removalUp to 20 detectors or equivalent load may be installed between isolators

GBP 30.83

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Apollo XP95 Discovery Isolating Base 45681-284APO

Apollo XP95 Discovery Isolating Base 45681-284APOThe Isolating Base senses and detects short-circuit faults on Discovery loops and spurs.Key Features Up to 20 detectors or their equivalent load may be installed between isolating basesHigh brightness LEDDetects wiring short-circuitsMinimises disruption from short circuits

GBP 9.71

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Apollo XP95 Discovery Isolator Base 45681-211APO

Apollo XP95 Isolator Base 45681-211APOThe XP95 Isolator Base is only suitable for use with the Isolator 55000-720. The Isolator Base made of polycarbonate housing with nickel plated stainless steel terminals.The Isolator is placed at intervals on the loop and ensures that in the case of a short circuit only the section between the isolators will be affected. When the short circuit is removed the isolators automatically restore power and data to the isolated section. The Isolator can only be used with an Isolator base and will not fit a standard addressable base.Key FeaturesDetects wiring short-circuits using patented technologyMinimizes disruption from short circuitsAutomatic de-isolation on short-circuit removalUp to 20 detectors or equivalent may be installed between isolators

GBP 2.98

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Apollo Marine Isolating Base 45681-286MAR

Apollo Marine Isolating Base 45681-286MARThe Isolating Base senses and isolates short circuit faults on XP95 and Discovery loops and spurs.OperationUnder normal operating conditions a low impedance is present between the IN and OUT terminals of the base so that power and signals pass to the next base in line. If a short-circuit or abnormally low impedance occurs the fall in voltage is sensed and the base isolates the negative supply in the direction of the fault.The isolated section is tested using a current pulse every five seconds. When the short-circuit is removed the power will automatically be restored. If it is a requirement that no device is lost in the event of a single short-circuit fault every detector should be fitted to an isolating base. In applications where it is not necessary to use an isolating base for each detector up to twenty detectors or equivalent surge current may be installed between isolating bases.Key FeaturesUp to 20 detectors or their equivalent load may be installed between isolating basesHigh-brightness LEDDetects wiring short-circuitsMinimises disruption from short-circuits

GBP 16.81

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Apollo Marine DIN-Rail Zone Monitor 55000-773MAR

Apollo Marine DIN-Rail Zone Monitor 55000-773MARThe Marine DINRail Zone Monitor powers and controls the operation of a zone of up to 20 conventional fire detectors from a loop of XP95 addressable detectors and ancillary devices.OperationThis unit needs to be installed in a suitable enclosure and secured using end stops part no 27447-528 or equivalent. The Marine DINRail zone monitor is factory pre-set to return an analogue value of 16 when all detectors on the zone are in the quiescent state and 64 when a detector changes to the alarm state.The unit latches in the alarm state. A 5.1K end-of-line resistor is used to monitor cables for open and short-circuit faults. Alternatively an active end-of-line monitor may be used in conjunction with diode bases and a capacitor of up to 50F fitted at the unit wiring terminals. In either case an analogue value of 4 is transmitted during open or short-circuit faults.The Marine DINRail zone monitor is fitted with a bi-directional short-circuit isolator and will be unaffected by loop short-circuits on either loop input or output.Key FeaturesLoop-poweredVisible short-circuitLED Built in isolator

GBP 112.91

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Apollo XP95 DIN-RAIL Zone Monitor with Isolator - 55000-812APO

Apollo XP95 DIN-RAIL Zone Monitor with Isolator - 55000-812APOThe DIN-Rail Zone Monitor with Isolator powers and controls a zone of up to 20 Apollo Series 65 or Orbis fire detectors in a Discovery or XP95 loop.OperationThe DINRail Zone Monitor is factory preset to return an analogue value of 16 when all detectors on the zone are in the quiescent state and 64 when a detector changes to the alarm state. The unit latches in the alarm state. A 5.1k end-of-line resistor is used to monitor cables for open and short-circuit faults. Alternatively an active end-of-line monitor may be used in conjunction with diode bases and a capacitor of up to 50uF fitted at the unit wiring terminals. In either case an analogue value of 4 is transmitted during open or short-circuit faults.The DINRail Zone Monitor is fitted with a bi-directional short-circuit isolator and will be unaffected by loop short-circuits on either loop input or output. For IS applications use DIN-Rail IS Zone Monitor part number 55000-798.Key FeaturesLoop-poweredVisible short-circuit and alarmLEDs Built-in Isolator

GBP 81.07

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Apollo Marine DIN-Rail Dual Isolator 55000-770MAR

Apollo Marine DIN-Rail Dual Isolator 55000-770MARThe Marine DIN-Rail Dual Isolator provides in one housing two independent isolators which sense and isolate short-circuits on loops and spurs. This unit needs to be installed in a suitable enclosure Part No. 29600-239240 or equivalent and secured using the end stops.OperationThe isolators are loop-powered and are polarity sensitive. A maximum of twenty detectors may be installed between isolators. When a short-circuit condition exists on either side of the isolator the yellow LED is illuminated.Under normal operating conditions a low impedance is present between the two negative terminals of each isolator channel so that power and signals are passed to the next base in line.If a short-circuit or abnormally low impedance occurs across the loop the fall in voltage is sensed and the isolator isolates the negative supply in the direction of the fault. In this condition the yellow LED of the affected channel will be illuminated. The isolated section of loop is tested using a current pulse every five seconds. When the short-circuit is removed the power will automatically be restored.Key FeaturesLoop-poweredUp to 20 detectors can be installed between isolatorsAllows fully isolated spurs

GBP 78.92

1

Apollo XP95 Zone Monitor Unit with Isolator 55000-845APO

Apollo XP95 Zone Monitor Unit with Isolator 55000-845APOThe Zone Monitor powers and controls the operation of a zone of up to 20 Apollo Series 65 or Orbis Fire Detectors from a Discovery or XP95 loop. The Zone Monitor with Isolator is loop powered and operates at 1728V DC with protocol pulses of 59V.The Zone Monitor with Isolator is supplied with a backbox for surface mounting and is for indoor use only. Two LEDs one red and one yellow are visible through the front cover of the enclosure. The red LED is illuminated to indicate that a fire alarm condition has been detected on the zone wiring. The yellow LED is illuminated whenever the built-in isolator has sensed a short circuit loop fault. The backbox is a polycarbonate moulding.Key Featuresfitted with a bi-directional short circuit isolatorunaffected by loop short circuits

GBP 58.91

1

Apollo 55000-590APO XP95 InputOutput Module - Three Channel - Isolating

Apollo 55000-590APO XP95 InputOutput Module - Three Channel - IsolatingThe Three Channel InputOutput module provides three single pole voltage-free clean contact changeover relay outputs with common normally open and normally closed terminals provided for field cabling and three monitored switch inputs.The inputs are monitored for short and open circuit conditions and are protected against accidental connection to the detection loop.The device is loop-powered and incorporates bidirectional isolation circuitry to provide against detection loop short circuits. On-board LED status indication is provided for service and commissioning purposes a feature that can be deactivated during normal operation to reduce the current draw on the system.A 10-way DIP switch is provided to set the device address and LED control.Key FeaturesUses a single addressBuilt-in Short Circuit Isolator3mm screw fixing supplied or DIN Rail mounting optionDiagnostic LED IndicationsMonitored inputs

GBP 109.62

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Apollo XP95 DIN-Rail Dual Isolator - 55000-802APO

Apollo XP95 DIN-Rail Dual Isolator - 55000-802APOThe DIN-Rail Dual Isolator provides two independent isolators which sense and isolate short circuits on Discovery and XP95 loops and spurs.OperationUnder normal operating conditions a low impedance is present between the two negative terminals of each isolator channel so that power and signals are passed to the next base in line. If a short-circuit or abnormally low impedance occurs across the loop the fall in voltage is sensed and the isolator isolates the negative supply in the direction of the fault. In this condition the yellow LED of the affected channel will be illuminated.The isolated section of loop is tested using a current pulse every five seconds. When the short-circuit is removed the power will automatically be restored. The two isolator channels are not interconnected internally and operate completely independently of one another.Key FeaturesLoop-poweredPolarity sensitiveUp to 20 detectors can be installed between isolatorsAllows fully isolated spurs

GBP 55.00

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Apollo SA5900-928MAR Intelligent Marine Manual Call Point

Apollo SA5900-928MAR Intelligent Marine Manual Call PointThe Intelligent Marine Manual Call Point MCP has been designed to operate on a loop of intelligent fire detection devices. An alarm is initiated by pressing the resettable element. The MCP signals to the Fire Control Panel using an interrupt feature within the Apollo Digital Communication Protocol. An alarm status is indicated through the rotation of the resettable element displaying yellow and black indication bars and a solid red LED. The MCP can be easily reset from the front using the supplied reset key. The Intelligent Marine MCP is intended for indoor marine and offshore applications and has a built-in short circuit isolator.OperationThe address of each call point is set at the commissioning stage by means of a DIL switch. A solid red alarm LED is provided on the manual call point. This LED is controlled independently of the call point by the control panel. The LED will flash yellow if there is a fault and flash green when the device is polled. Discovery and CoreProtocol configurable. Once activated the Intelligent Marine Manual Call Point SIL Approved can be reset by inserting the reset key into the front facing LED turning clockwise until a positive click and reset occurs.The Intelligent Marine Manual Call Point incorporates a short circuit isolator which will ensure its operation in the event of a short circuit fault on the loop. Isolator operation is indicated by a solid yellow LED.Key FeaturesResettable element for testingEasy access front reset mechanismA unique ergonomically designedKey for resetting and front cover removal

GBP 53.21

1

Apollo Waterproof Addressable Manual Call Point 58200-951APO

Apollo Waterproof Addressable Manual Call Point 58200-951APOThe Apollo Waterproof Manual Call Point has a highly visible alarm indicator which can be seen from up to 10 metres away. The manual call point interrupts the polling cycle for a fast response when activated. A combined LED indicator and front reset mechanism allows for a simple reset.OperationThe address of each Manual Call Point is set at the commissioning stage by means of a seven-segment DIL switch. A red alarm LED is provided on the Manual Call Point. This LED is controlled independently of the Manual Call Point by the fire control panel.Once activated the Manual Call Point can be reset by inserting the reset key into the front facing LED turning clockwise until a positive click and reset occurs. The isolated version of the Manual Call Point incorporates a short circuit isolator which will ensure its operation in the event of a short circuit fault on the loop. Isolator operation is indicated by a yellow LED.Key FeaturesIP67 ratedEN54-11 approved EN54-17 approved for Isolator versionE-Z fit connectorsFront facing addressing without the need to detach the backboxA unique ergonomically designed key for resetting and front cover removal

GBP 112.84

1

Apollo 58100-910APO Discovery Manual Call Point Red

Apollo 58100-910APO Discovery Manual Call Point RedA seven-segment DIL switch enables addressing of each call point at commissioning stage. When operated the manual call point interrupts the polling cycle for a fast response. Bi-coloured LEDs indicate isolate and normal conditions.The Apollo Discovery Manual Call Point has been designed to operate on a loop of intelligent fire detection devices. An alarm is initiated by pressing the resettable element. The manual call point signals to the control and indicating equipment using an interrupt feature within the Apollo digital communication protocol.An alarm status is indicated by a yellow and black bar in the lower section of the resettable element and a red LED. The manual call point can be easily reset from the front using the supplied reset key. It is available in two versions with and without isolator. The manual call point is intended for indoor applications.A red alarm LED is provided on the manual call point. This LED is controlled independently of the manual call point by the fire control panel.Once activated the manual call point can be reset by inserting the reset key into front facing LED turning clockwise until a positive click and reset occurs. An additional pack of 10 reset keys can be purchased Part Number 44251-176. The isolated version of the manual call point incorporates a short circuit isolator which will ensure its operation in the event of a short circuit fault on the loop. Isolator operation is indicated by a yellow LED. For further details of the isolator refer to datasheet PP2090 available on request.This manual call point helps reduce installation time as all the initial installation cabling is wired to a terminal block which fits neatly in the back of the call point.

GBP 57.14

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Apollo 58100-927APO Discovery Manual Call Point Yellow

Apollo 58100-927APO Discovery Manual Call Point YellowA seven-segment DIL switch enables addressing of each call point at commissioning stage. When operated the manual call point interrupts the polling cycle for a fast response. Bi-coloured LEDs indicate isolate and normal conditions.The Apollo Discovery Manual Call Point has been designed to operate on a loop of intelligent fire detection devices. An alarm is initiated by pressing the resettable element. The manual call point signals to the control and indicating equipment using an interrupt feature within the Apollo digital communication protocol.An alarm status is indicated by a yellow and black bar in the lower section of the resettable element and a red LED. The manual call point can be easily reset from the front using the supplied reset key. It is available in two versions with and without isolator. The manual call point is intended for indoor applications.A red alarm LED is provided on the manual call point. This LED is controlled independently of the manual call point by the fire control panel.Once activated the manual call point can be reset by inserting the reset key into front facing LED turning clockwise until a positive click and reset occurs. An additional pack of 10 reset keys can be purchased Part Number 44251-176. The isolated version of the manual call point incorporates a short circuit isolator which will ensure its operation in the event of a short circuit fault on the loop. Isolator operation is indicated by a yellow LED. For further details of the isolator refer to datasheet PP2090 available on request.This manual call point helps reduce installation time as all the initial installation cabling is wired to a terminal block which fits neatly in the back of the call point.

GBP 70.79

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Apollo Discovery amp XP95 Intelligent Manual Call Point SA5900-908APO

Apollo Discovery XP95 Intelligent Manual Call Point SA5900-908APOThe Intelligent Manual Call Point has been designed to operate on a loop of intelligent fire detection devices. An alarm is initiated by pressing the resettable element. The manual call point signals to the Control and Indicating Equipment using an interrupt feature within the Apollo Digital Protocol.An alarm status is indicated through the rotation of the resettable element displaying yellow and black indication bars and a solid red LED. The manual call point can be easily reset from the front using the supplied reset key.Key FeaturesResettable operating elementEasy access front reset mechanismE-Z fit connector system for installationErgonomic reset keyEN 54-11 EN 54-17 Certified Red version only170 viewable LEDContinuity link for cable insulation testingSuitable for semi flush or surface mountingOperating PrinciplesThe address of each call point is set at the commissioning stage by means of a DIL switch.A solid red alarm LED is provided on the manual call point. This LED is controlled independently of the call point by the control panel. The LED will flash yellow if there is a fault and flash green when the device is polled. Discovery and CoreProtocol configurable.Once activated the Intelligent Manual Call Point can be reset by inserting the reset key into the front facing LED turning clockwise until a positive click and reset occurs.The Intelligent Manual Call Point incorporates a short circuit isolator which will ensure its operation in the event of a short circuit fault on the loop. Isolator operation is indicated by a solid yellow LED.This manual call point helps reduce installation time as all the initial installation cabling is wired to a removable terminal block which fits neatly in the back of the manual call point.Protocol CompatibilityThe Intelligent Manual Call Point will operate with compatible Apollo control equipment using the digital XP95 Discovery and CoreProtocols.Electrical ConsiderationThe Intelligent Manual Call Point is loop powered and operates at 17-35V DC for all variants.

GBP 35.77

1

Apollo Discovery Marine Waterproof Manual Call Point 58200-975MAR

Apollo Discovery Marine Waterproof Manual Call Point 58200-975MARThe Discovery Marine Manual Call Points has been designed for use in marine and offshore environments and are available in two versions for indoor and outdoor applications. Both versions are available with and without short circuit isolators.An alarm is initiated by pressing the resettable element. The Manual Call Point signals to the Control and Indicating Equipment using an interrupt feature within the Apollo Digital Protocol. An alarm status is indicated by a yellow and black bar in the lower section of the resettable element and a red LED. The Manual Call Point can be easily reset from the front using the supplied reset key.Brand InformationDiscovery Marine analogue addressable fire detectors are suitable for larger vessels. The high specification range has been developed to meet the requirements of sophisticated systems. Discovery gives you total reassurance in installations where it is necessary to adapt detection to different operating environments and where protection against unwanted alarms is paramount.Key FeaturesResettable operating elementEasy access front reset mechanismFront facing accessible addressing for commissioningErgonomic reset key and keyring holeFlashing Poling LED Option170 viewable LED indicator

GBP 157.60

1

Apollo Discovery Sounder Base with Isolator 45681-702APO

Apollo Discovery Sounder Base with Isolator 45681-702APOThe Discovery Sounder Base is a multifunctional device that incorporates a sounder a short-circuit isolator within a Discovery mounting base. 15 different tone pairs can be used to signal evacuation and alert. A third selection can be used in instances such as a class change in Schools.Brand InformationDiscovery is a range of high-specification analogue addressable fire detectors and alarm devices. Discovery detectors offer effective false alarm management by a combination of EN 54 approved operating modes and sophisticated algorithms.Drift compensation further reduces the likelihood of false alarms caused by a build-up of dust in the sensing chamber. In addition to the familiar smoke and heat detectors the Discovery range features two multisensor detectors. One is an opticalheat multisensor which can be used to protect against many types of fire risk. The other is a carbon monoxideheat multisensor which protects against both smouldering fires and those generating heat.Key Features15 pairs of tonesIt is possible to set individual volume of the sounder from the fire control panelTones can be used for other purposes in addition to warning of fire ideal for schoolsEnables soft start option ideal for hospitals and nursing homesUnique acoustic and visual indicator self-test

GBP 40.52

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Apollo Intelligent Auto-Aligning Beam Detector SA7100-100APO

Apollo Intelligent Auto-Aligning Beam Detector SA7100-100APOThe Intelligent Auto-Aligning Beam Detector combines a transmitterreceiver in the same detector head with an automatic alignment motor. This combination with integrated addressability allows for quick and simple installation. The Intelligent Auto-Aligning Beam Detector automatically compensates for environmental effects on the beam signal keeping the unit in the best possible working order. This is achieved through the combination of software automatic gain control and motorised realignment of the beam.OperationThe Intelligent Auto-Aligning Beam Detector is a compact detector for detecting smoke in large open areas such as warehouses theatres churches and sports centres. It comprises a ground level loop-powered controller a detector head with an operating range of 8m-50m and a single prism. The operating range of each detector head can be increased up to 100m by using the Extension Kit which comprises of three additional prisms.An additional detector head can be connected to the controller. Each head has a loop address. It also has a built in 20T negative bi-directional short circuit isolator and it is compatible with control panels using CoreProtocol Discovery and XP95 protocol. A built-in laser provides rapid initial alignment and thereafter the detector head will continuously automatically align and compensate for any building movement.The status of each detector can be monitored through the controller which is sited at ground level. The detector head operates both as a transmitter and a receiver. A well-defined IR beam is projected to a prism mounted on the opposite wall which is reflected back to the receiver. In the event of smoke partially obscuring the light an imbalance between the transmitted and received light will occur. The detector will then transmit an alarm value to the control panel.The detector is factory set to a beam obscuration of 35 which is the best setting for most factories and warehouses. The setting can be changed to 25 for offices and clean areas such as theatres or to 50 for hostile areas such as mills or foundries. The detector reports a pre-alarm analogue value 48 at approximately 75 of the alarm threshold. The detector compensates automatically for gradual contamination of the lenses in order to avoid false alarms. The detector is non-latching and resets 30 seconds after an alarm event ceases and in 3 seconds after the removal of a fault.Key FeaturesLoop Powered and compatible with XP95 Discovery and CoreProtocolIncorporates a bi directional short-circuit isolatorAutomatic drift compensationAutomatic resetGround level ControllerAutomatic alignment compensation for building movementLaser assisted alignment for quick installationAllows for 2 detector heads per controllerUp to 100m rangePre-alarm thresholdEN 54-12 and EN 54-17 certified

GBP 599.51

1

Apollo Discovery Marine Manual Call Point 58100-970MAR

Apollo Discovery Marine Manual Call Point 58100-970MARThe Discovery Marine Manual Call Point MCP is based on the KAC conventional MCP range. It is electronically and mechanically compatible with previous Apollo call points based on KACs World Series product. The address of each call point is set at the commissioning stage by means of a seven-segment DIL switch.If an MCP is activated it interrupts the normal protocol to give a fast response. A single bi-coloured alarm LED is provided on the manual call point. This LED is controlled independently of the call point by the control panel and may be set to flash each time the call point is polled. The red LED is illuminated when the call point has been activated and sent into alarm.On the isolated versions an amberyellow LED indicates a short-circuit on the loop wiring either side of the call point. Call points can be remotely tested from the panel by transmission of a single bit in the communications protocol. Call points respond by providing a value of 64 which corresponds to the alarm value. The panel should recognise this response as a test signal and should not raise a general alarm.Key FeaturesFlashing LED option to indicate polling Discovery systems onlyPlug and Play terminal connections for fast wiringContinuity link for wiring test before commissioningReports an alarm in under 0.2 secondsResettable element

GBP 78.71

1

Apollo XP95 DIN-Rail Sounder Controller 5 Amperes 55000-182APO

Please note This product currently has an extended leadtime due to a component shortage. Please contact us for further information.Apollo XP95 DIN-Rail Sounder Controller 5 Amperes 55000-182APOThe DIN-Rail Sounder Controller 5 Amperes is used to control the operation of a zone of externally powered sounders and report their status to the control panel.Electrical DescriptionThe DIN-rail Sounder Controller is loop powered and operates at 1728V DC. It requires a local power supply of 1235V DC to power the external load which may be up to 5A. A polarising diode is required with each alarm device as sounders are operated by voltage reversal provided by a double-pole change-over relay. The sounder circuit is protected by a fuse rated at 5A quick acting.OperationThe Sounder Controller allows sounders to be operated continuously or be pulsed 1 second on 1 second off. Sounders may be operated individually or in groups and whichever address mode has been applied may be synchronised when in pulsed operation. An opto-coupled input is provided to monitor the state of the external power supply. In normal operation the Sounder Controller returns a pre-set analogue value of 16 but in the event of an open or short-circuit fault or of a fault in the external power supply the unit returns a pre-set analogue value of 4.Key FeaturesAllows sounders to be operated continuously or be pulsed 1 second on 1 second offMay be synchronised with loop soundersAn opto-coupled input is provided to monitor the state of the external power supplyFeatures group addressingWill accept a load of up to 5A

GBP 97.03

1

Apollo Discovery Marine Weatherproof Manual Call Point 58200-976MAR

Apollo Discovery Marine Weatherproof Manual Call Point 58200-976MARThe Discovery Marine Manual Call Points has been designed for use in marine and offshore environments and are available in two versions for indoor and outdoor applications. Both versions are available with and without short circuit isolators.An alarm is initiated by pressing the resettable element. The Manual Call Point signals to the Control and Indicating Equipment using an interrupt feature within the Apollo Digital Protocol. An alarm status is indicated by a yellow and black bar in the lower section of the resettable element and a red LED. The Manual Call Point can be easily reset from the front using the supplied reset key.Discovery Marine analogue addressable fire detectors are suitable for larger vessels. The high specification range has been developed to meet the requirements of sophisticated systems. Discovery gives you total reassurance in installations where it is necessary to adapt detection to different operating environments and where protection against unwanted alarms is paramount.OperationThe address of each call point is set at the commissioning stage by means of a seven-segment DIL switch. On the indoor versions the address switch is accessible without removing the call point from the mounting surface. A red alarm LED is provided on the call point. This LED is controlled independently of the call point by the control panel.This Manual Call Point helps reduce installation time as all the initial installation cabling is wired to a terminal block which fits neatly in the back of the call point. Once activated the Discovery Marine Manual Call Point can be reset by inserting the reset key into the front facing LED turning clock wise until a positive click and reset occurs.Key FeaturesApproved for use in the marine environmentFive response modes for environmental adaptationDaynight switching for increased flexibilityDrift compensation for false alarm reductionUser programmability for dataXPERT card addressing for increased security

GBP 153.76

1

Apollo Discovery Carbon Monoxide CO Detector 58000-300APO

Apollo Discovery Carbon Monoxide CO Detector 58000-300APODiscovery CO fire detectors contain a long-life electro-chemical carbon monoxide sensor which is tolerant of low levels of common vapours and household products. The sensing technology is fast accurate and needs only very low power. The detection capabilities are enhanced by a rate-sensitive response. Fast rises in the carbon monoxide level are often associated with hot fires and the detector will respond earlier under these conditions. The analogue reply from the detector is rate limited to remove nuisance alarms resulting from short-term high levels caused by sources such as pipe smokers or gas flame ignition.Brand InformationDiscovery is a range of high-specification analogue addressable fire detectors and alarm devices. Discovery detectors offer effective false alarm management by a combination of EN 54 approved operating modes and sophisticated algorithms. Drift compensation further reduces the likelihood of false alarms caused by a build-up of dust in the sensing chamber. In addition to the familiar smoke and heat detectors the Discovery range features two multisensor detectors. One is an opticalheat multisensor which can be used to protect against many types of fire risk. The other is a carbon monoxideheat multisensor which protects against both smouldering fires and those generating heat.OperationThe Discovery CO detector has five operating modes each having a set combination of sensitivity and response delay which the user can select for any given application.ApplicationCO detectors do not detect smoke particles or heat and are not universal replacements for smoke detectors. Apollo does not endorse the use of CO detectors as the main method of fire detection if the protected area is an escape route there is a requirement to detect overheating of electrical equipment or cables the protected area is exposed to sources of CO such as vehicle exhausts or to hydrogen or to high levels of alcohol vapour as emitted by some cleaning agents there is a requirement to detect fires involving flammable liquids CO fire detectors are particularly suitable for supplementing smoke detection when there is a deep seated smouldering fire risk a risk of fire starting in an enclosed space a likelihood of stratification taking place Carbon monoxide detectors may be used as the primary fire detector in areas where the following conditions exist the main risk is smouldering fires optical smoke detectors are deemed unsuitable see FALSE ALARMS below the fire compartment is not greater than 50m2 Typical applications include hotel bedrooms halls of residence sheltered accommodation and hospital wards.CommunicationDiscovery uses a digital communications protocol which has been developed from the XP95 protocol but differs in that it allows communication in three different modes Normal Read and Write to allow a more extensive exchange of information and commands than previous analogue addressable ranges. In addition Discovery can store data in non-volatile memory. The Normal mode is identical to the XP95 protocol with the exception that the five additional analogue value bits in the XP95 protocol extension have been re-defined so that the fire control panel is able to distinguish between Discovery and XP95 devices. The Read mode is used to check information stored in the non-volatile memory of each detector. It is accessed by using a simple extension to the Normal mode communication method from the fire control panel to the detector. In Write mode the fire control panel is able to write information to the detector by extending the communication method in the same way as in Read mode. During Read or Write modes a detector can signal an alarm by means of the alarm flag and alarm address bits. Discovery detectors are compatible with XP95 and Soteria. It should be noted however that Discovery features will not be available when Discovery is used with XP95 fire control panels. Fire control panels with drift compensation algorithms should disable the algorithms when communicating with Discovery. For fire control panels running CoreProtocol please refer to the fire control panel manufacturers operating instructions.

GBP 62.71

1

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